PDA

View Full Version : plastic thickness - mil/ mm/ gauge

Unregistered
08-02-2006, 11:39 AM
I found a conversion (mm/ gauge) for sheet metal (ferrous and nonferrous) but I can't seem to find a way to convert plastic thicknesses between "mil", "mm" and "gauge". Each brand seems to use their own unit - making it impossible to compare. Your help would be most appreciated.

Unregistered
09-11-2006, 04:25 AM
Plastic gauge is expressed in microns (abreviation um or mym)
1 um = 0.0254mm.
If (as in USA) film thickness is 3mil (mm) then this is 3 divided by 0.0254 = 118.11um. As with most extrusion this is generally called 120um given manufacturing tolerance +/- 5%.
Most accurate gauge is calculated by weight i.e. specific gravity for LDPE is .92.
However in most cases nominal gauge is more than suitable for general use.
Yeild can be calculated for say plastic layflat tube (thats 2 thicknesses) by using width (mm) x gauge (um) x factor (LDPE = .00184 & HDPE = .00194) to give weight (kg) for 1000 lin. meters.
950mm x 80um x .00184 = 139.84kg/1000 mtr.

Robert Fogt
09-11-2006, 12:53 PM
My research shows that for plastic film 1 gauge is equal to 0.01 mil, that would be 0.254 micron or 0.000254 millimeter.

guage * 0.01 = mil
mil / 0.01 = guage

mil * 0.0254 = millimeter
millimeter / 0.0254 = mil

cst
11-30-2006, 12:43 PM
I think the last 2 lines' operators should be backwards.
mil / 0.0254 = millimeter
millimeter * 0.0254 = mil

cheers

Robert Fogt
11-30-2006, 10:12 PM
No they were right.

mil * 0.0254 = millimeter
millimeter / 0.0254 = mil

For example, if you have 100 mil:
100 mil * 0.0254 = 2.54 millimeter

Unregistered
02-13-2007, 06:22 AM
um sorry but what. I passed high school math barely. I'm tring to convert 13 "mil" to gauge. Sorry I don't understand the formula?

Robert Fogt
02-15-2007, 12:01 AM
This is for plastic? Can you provide additional information?

Confused
03-01-2007, 06:27 AM
The conversion above seems confusing. I am just tring to convert mm to mil (film thickness). Would mil be the same as micron?

Robert Fogt
03-01-2007, 11:06 AM
The conversion above seems confusing. I am just tring to convert mm to mil (film thickness). Would mil be the same as micron?

millimeter (mm) and mil are both units of length and can be converted easily on the Length conversion page.

1 millimeter = 39.3700787401575 mil

To do it by hand:

mm * 39.37 = mil

Unregistered
08-15-2007, 06:51 PM
does 20.3 mil strech wrap = 80 gauge ?

Mrs X
08-15-2007, 10:41 PM
A caution for thickness - in metric countires, "mil" is also a lazy way of saying "millimeter". Thus 2mil - 2mm. We don't use "mil" at all, we use "thou" as in 3thou = 3 thousanths of an inch. Check what it means where you come from. :)

videofilm
10-02-2007, 04:38 PM
It would seem, from reading the other posts, that mils in plastic thickness corresponds to thousandths of an inch. (1000 mils would equal 1 inch.)

Unregistered
10-16-2007, 06:38 AM
How much would be 250 microns in guage ??

Unregistered
10-17-2007, 09:47 AM
I'm having a similar issue. I'm in Mexico. Buying rolls of plastic sheeting everyone retail refers to gauge as between 6 to 16 with 10 and 12 being very common. I've been trying to buy some a bit thicker and went to a distributor in Mexico City where they sell rolls by the kilo in widths of about 4.5 feet. Suddenly they're talking about 150 and up to 500. They said they thought probably 200 was roughly equavalent to 22 gauge. To be more precise what units of measure do you think I need to be using to do a conversion from 22 gauge (called here calibre) to something in the low hundreds range.

Unregistered
10-29-2007, 09:41 AM
How much would be 250 microns in guage ??

I'm fairly sure that you multiply microns by 4 (near enough) to calculate guage of plastic film. e.g. 500 guage = 125 microns

250 microns * 4 = 1,000 guage (give or take).

Not 100% certain, but pretty sure. Maybe someone can approve this?

Unregistered
12-05-2007, 08:42 AM
Each item is different and should be checked. However, Grafix usually does not stock film thinner than .001" (1 mil) and thicker than .020" (20 mil).
Equivalency Chart
Mils
(thousands of an inch) Microns Millimeters
.001" 24 .0254
.002" 50 .0508
.003" 72 .0765
.004" 96 .1016
.005" 120 .127
.007" 168 .1778
.010" 240 .254
.015" 360 .381
.020" 480 .508

ronpluma
01-21-2008, 05:13 PM
Trying To Convert 16 Mic Thickness To Mil Thicknesss.

I Have A Trash Liner That Is 16mic? What Is The Mil Thickness?

Thx Ron

JohnS
01-22-2008, 08:33 AM
Each item is different and should be checked. However, Grafix usually does not stock film thinner than .001" (1 mil) and thicker than .020" (20 mil).
Equivalency Chart
Mils
(thousands of an inch) Microns Millimeters
.001" 24 .0254
.002" 50 .0508
.003" 72 .0765
.004" 96 .1016
.005" 120 .127
.007" 168 .1778
.010" 240 .254
.015" 360 .381
.020" 480 .508

Sorry, but the micron column is wrong in it's entirety. A micron is an incorrect (deprecated in the SI) word for micrometer, and is one-thousandth of a millimeter. Thus 0.005" is correctly 0.127 mm but 127 µm, NOT 120. Just move decimal three places right.

1" = 25.4 mm = 25400 µm
0.001" = 0.0254 mm = 25.4 µm

JohnS
01-22-2008, 04:48 PM
Trying To Convert 16 Mic Thickness To Mil Thicknesss.

I Have A Trash Liner That Is 16mic? What Is The Mil Thickness?

Thx Ron

16 µm * 1 mil/25.4 µm = 0.63 mil

Mrs. X,
Your point about mil vs. thou is certainly worth noting. Another example of "two peoples separated by a common language."

In the US, mil (0.001") is a legal-for-trade unit in describing film thickness, plastic bag thickness, etc. Where dual labelling is required (consumer goods), micrometers (µm) are normally used for the metric declaration.

Michael Feldman
06-03-2008, 10:57 AM
1 um, i.e. one micron (sometimes called micrometer) are = 0.001 mm NOT 0.0254mm as published below by the previous author. Plastic gauge is expressed in microns (abreviation um or mym)
1 um = 0.0254mm.
If (as in USA) film thickness is 3mil (mm) then this is 3 divided by 0.0254 = 118.11um. As with most extrusion this is generally called 120um given manufacturing tolerance +/- 5%.
Most accurate gauge is calculated by weight i.e. specific gravity for LDPE is .92.
However in most cases nominal gauge is more than suitable for general use.
Yeild can be calculated for say plastic layflat tube (thats 2 thicknesses) by using width (mm) x gauge (um) x factor (LDPE = .00184 & HDPE = .00194) to give weight (kg) for 1000 lin. meters.
950mm x 80um x .00184 = 139.84kg/1000 mtr.

Unregistered
08-29-2008, 08:52 AM
The thickness or gauge of plastic bag film is expressed in Mil - A unit of measurement in thousandths of an inch, (i.e., .001 = one thousandth of an inch or 1.0 mil), generally used to designate the thickness of LDPE products; or Mic - Short for micron, one thousandth of a millimeter, generally used to designate the thickness of HDPE products.

Unregistered
10-28-2008, 11:19 AM
The gauge or thickness of plastic film is expressed in thousands of an inch, said as “mils”. For example, .005" is said “5 mils”.

One millimeter = .039" or “39 mils” thick.

Equivalency Chart

Microns Millimeters
.001" 24 .0254
.002" 50 .0508
.003" 72 .0765
.004" 96 .1016
.005" 120 .127
.007" 168 .1778
.010" 240 .254
.015" 360 .381
.020" 480 .508

JohnS
10-28-2008, 06:24 PM
The gauge or thickness of plastic film is expressed in thousands of an inch, said as “mils”. For example, .005" is said “5 mils”.

One millimeter = .039" or “39 mils” thick.

Equivalency Chart

Microns Millimeters
.001" 24 .0254
.002" 50 .0508
.003" 72 .0765
.004" 96 .1016
.005" 120 .127
.007" 168 .1778
.010" 240 .254
.015" 360 .381
.020" 480 .508

Micron is an obsolete and deprecated term for micrometer (micrometre). I agree that 0.001" = 0.0254 mm, but 1 mm = 1000 µm, therefore
0.001" = 0.0254 mm = 25.4 µm, not 24. The entire "micron" column is wrong and should be 1000 times the mm column.

mehrajugnu@yahoo.co.in
04-15-2009, 11:53 PM
please inform the gauge of 6mil.

Unregistered
04-28-2009, 09:30 AM
I am amazed with all the comments that have been posted that there is not one conversion from gauge to mil. Is 20 gauge the same as 20 mil? Someone said they are the same, but I was sure mil was thicker than gauge. Any ideas?

Unregistered
07-03-2009, 01:26 AM
plz convert 250 gauge into mm
175 gauge,100 gauge.

Unregistered
07-27-2009, 09:41 AM
Right on!
Wouldn't you think someone would know enough to enter an equation showing relation of gauge, inches, millimeters ... It seems there is much confusion and it's not only with us.

I am amazed with all the comments that have been posted that there is not one conversion from gauge to mil. Is 20 gauge the same as 20 mil? Someone said they are the same, but I was sure mil was thicker than gauge. Any ideas?

JohnS
07-27-2009, 04:20 PM
Right on!
Wouldn't you think someone would know enough to enter an equation showing relation of gauge, inches, millimeters ... It seems there is much confusion and it's not only with us.

Uhh, did you read post #3?

Unregistered
08-06-2009, 11:50 AM
To Convert: Gauge to Inches - Multiply By - 1.0 x 10-5

To Convert: Gauge to Microns - Multiply By - 0.254

To Convert: Gauge to Mils - Multiply By - 0.01

Hope this helps!
- Lance

Unregistered
08-24-2009, 06:44 PM
We should remember this fomula;

1 mil = 1/1000 inch = 25.4 micron = 100 gauge

and this is enough to remember.

Unregistered
09-25-2009, 07:39 AM
What is the thickness I should understand for 15 mil?
Thanks.

JohnS
09-25-2009, 10:47 AM
What is the thickness I should understand for 15 mil?
Thanks.

0.015" (0.381 mm or 381 µm)

A mil is one-thousandth of an inch

Unregistered
10-06-2009, 10:25 PM
I found a conversion (mm/ gauge) for sheet metal (ferrous and nonferrous) but I can't seem to find a way to convert plastic thicknesses between "mil", "mm" and "gauge". Each brand seems to use their own unit - making it impossible to compare. Your help would be most appreciated.

thickness of 1000 gauge

Unregistered
10-09-2009, 11:57 PM
i found a conversion (mm/ gauge) for sheet metal (ferrous and nonferrous) but i can't seem to find a way to convert plastic thicknesses between "mil", "mm" and "gauge". Each brand seems to use their own unit - making it impossible to compare. Your help would be most appreciated.

0.06 mm = ?

Imthiaz
10-20-2009, 11:36 PM
How much would be 250 microns in guage ??

The answer to your question is 250 Microns = 984.25 guage if it is polythene or plastics.

Apply the formula 1 guage = 0.254 Microns
:)

kerstenpretty21
11-04-2009, 05:10 PM
this is the equivalent:
1 gauge = 1/100 Mil = 1/100,000 inch = 25.4/100000 mm = 0.254 micron
they use this for very thin measurements such as plastic and wires as well. they can measure its diameter using this :D:D:D

Unregistered
02-10-2010, 11:04 AM
Could you please tell me what mil plastic you would use for a chile paste that would allow you to see through yet hold up. They would be 4 oz. packets sealed and shipped or displayed. Thanks for your help. Celia

Unregistered
02-23-2010, 02:41 AM
From my research around the web, this is the common info I have found:

guage inches millimeters micrometers
1 0.00001 0.000254 0.254
2 0.00002 0.000508 0.508
5 0.00005 0.00127 1.27
10 0.0001 0.00254 2.54
20 0.0002 0.00508 5.08
50 0.0005 0.0127 12.7
100 0.001 0.0254 25.4
200 0.002 0.0508 50.8
500 0.005 0.127 127
1000 0.01 0.254 254
2000 0.02 0.508 508
5000 0.05 1.27 1270
1 0.00001 0.000254 0.254
100000 1 25.4 25400
3937 0.03937 1 1000
3.937 0.000039 0.001 1

Hope that helps.
Ian

Unregistered
03-24-2010, 08:00 AM
hi Everyone
Dose anyone knows gravity for 5 mil co-ex PE the conversion to weight? thanks

Unregistered
05-04-2010, 07:45 AM
I found a conversion (mm/ gauge) for sheet metal (ferrous and nonferrous) but I can't seem to find a way to convert plastic thicknesses between "mil", "mm" and "gauge". Each brand seems to use their own unit - making it impossible to compare. Your help would be most appreciated.

how to convert 24 mm to gauge

JohnS
05-04-2010, 09:30 AM
how to convert 24 mm to gauge

25.4 mm would be 100,000 gauge so
24 x 100000/25.4 = 94488 gauge

coolnice
05-05-2010, 07:04 PM
Is 20 gauge the same as 20 mil? Someone said they are the same, but I was sure mil was thicker than gauge. Any ideas?

JohnS
05-06-2010, 03:17 AM
Is 20 gauge the same as 20 mil? Someone said they are the same, but I was sure mil was thicker than gauge. Any ideas?

1 mil seems to be 100 gauge, but, really, there is no formal definition. Anyone can make up a different definition of gauge. Just ask for real thickness

Unregistered
05-06-2010, 12:19 PM
In terms of PVC, the specs on a Sea-Doo inflatable toy tell me it's made of 30 gauge PVC, while the specs on a PVC pond liner at Home Depot describe it as 20 mil. Both seem very close in thickness. Applying that 100:1 ratio would make the 20 mil pond liner 2000 gauge. Doesn't seem right....

Dave

Unregistered
05-15-2010, 07:27 PM
unc.edu/~rowlett/units/scales/wiregauge.html

This is a conversion chart. Copy/paste the link.

JohnS
05-16-2010, 02:56 AM
unc.edu/~rowlett/units/scales/wiregauge.html

This is a conversion chart. Copy/paste the link.

Please note that is only for wire. "Gauge" has numerous definitions applying to different situations and materials. From the "gauge" article at the same site:
gauge (ga) [1]
a traditional unit measuring the interior diameter of a shotgun barrel. The gauge of a shotgun was the number of lead balls, each of a size just fitting inside the barrel, that were required to make up a pound. In other words, if a lead ball weighing 1/12 pound just fit in the barrel of a shotgun, then it was a 12-gauge shotgun. Today, the internal diameters for each gauge number are read from a table.
gauge (ga) [2]
a unit expressing the fineness of a knitted fabric, equal to the number of loops per 1.5 inches (38.1 millimeters). The same unit is also used to express the size of the knitting needles used to create a fabric of that fineness.
gauge (ga) [3]
a traditional unit measuring the diameter (or the cross-sectional area) of a wire. Various wire gauge scales have been used in the U.S. and Britain. In traditional scales, larger gauge numbers represent thinner wires. (For very thick wires, repeated zeros are used instead of negative numbers, so gauges 00, 000, and 0000 represent -1, -2, and -3, respectively.) In the American Wire Gauge (AWG) scale, 0000 gauge represents a wire having a diameter of 0.46 inch and 36 gauge represents a diameter of 0.005 inch (5 mils). Diameters for the other gauges are obtained by geometric interpolation, meaning that the ratio between successive diameters is a constant, except for necessary roundoff. Thus n gauge wire has a diameter of .005·92((36-n)/39) inch. The metric wire gauge number is equal to 10 times the diameter of the wire, in millimeters; thus a metric 8 gauge wire has diameter 0.8 millimeters. A table of wire gauge equivalents is provided.
gauge (ga) [4]
a traditional unit measuring the thickness of sheet metal. Larger gauge numbers represent thinner metal: 10 gauge represents a thickness of 0.1345 inch (3.416 millimeters) and each increase of 1 in the gauge number corresponds to a reduction of about 10% in the thickness. A table is provided.
gauge (ga) [5]
a traditional unit measuring the thickness of plastic film. For this purpose 1 gauge equals 0.01 mil [1] or 10-5 inch (0.254 micrometer).
gauge (ga) [6]
a traditional unit measuring the thickness of tennis racquet strings. There are two systems in use. In the U.S. system larger gauge numbers indicate thinner strings; in the European system larger gauge numbers indicate thicker strings. A table is provided.

Unregistered
05-24-2010, 12:39 PM
What a great example of the confusion of converting metric to english!

JohnS
05-24-2010, 01:45 PM
What a great example of the confusion of converting metric to english!

I would say the real problem is what is "gauge" and how do you convert it to any "real" unit.
*Millimeters are millimeters, simple and straightforward, worldwide
*Inches are 25.4 mm (that's their legal definition in the US)
*"Gauge" is poorly defined. Since it means many things to many people, it doesn't mean anything (consistent).

PEGlala
05-27-2010, 11:14 PM
Okay, i myself have gone mad over this whole conversion issue and can't find a chart anywhere! therefore i've decided to read this entire posting thread & piece together some knowledge & came up w/ the below table. can some pro or experts out there verify it??

.................................................. TO THIS (do the actions below)
TO CONVERT FROM below|....Gauge....|....... mil......|....Inch......|.....mm.......|...microns
...Gauge.......................|........-.......|....../100.....|../100000...|..*0.00025...|..*0.245
...Mil............................|.....*100.....| ......-.........|.../1000.....|./39.370079..|..*24.5
...Inch..........................|..*100000...|... ..*1000....|.......-.......|.....*25.4.....|..*24500
...mm...........................|../0.00025...|.*39.370079.|..../25.4....|........-........|..*1000
...microns (um or mym)....|..../0.245....|....../24.5....|.../24500...|...../1000.....|......-

For example:
what is 30 gauge in mm? do this: 30 gauge*0.00025 = 0.0075mm
what is .35 mil in inches? do this: 35 mil/1000 = 0.035 inch
what is 2.0 mm in gauge? do this: 2 mm*100 = 200 gauge

can someone test it out & let me know what you think?

PEGlala
05-27-2010, 11:48 PM
I posted the same content earlier but didn't create a user ID so that i can track your replies. in an attempt to sort this whole conversion effort our, can someone let me know if the conversion table i created is accurate? thanks!

........................................To This (do the below).................................
From This (below).......|Gauge....|mil............|Inch..... |mm..........|microns
....Gauge...................|............|/100.........|/100000|*0.00025...|*0.245
....mil .......................|*100......|............... |/1000...|/39.370079|*24.5
....Inch.....................|*100000.|*1000...... ..|..........|*25.4........|*24500
....mm.......................|/0.00025.|*39.370079|/25.4...|...............|*1000
....microns (um or mym)|/0.245....|/24.5........|/24500.|/1000........|........

JohnS
05-28-2010, 04:52 AM
I posted the same content earlier but didn't create a user ID so that i can track your replies. in an attempt to sort this whole conversion effort our, can someone let me know if the conversion table i created is accurate? thanks!

........................................To This (do the below).................................
From This (below).......|Gauge....|mil............|Inch..... |mm..........|microns
....Gauge...................|............|/100.........|/100000|*0.00025...|*0.245
....mil..... ........................|*100......|.............. .|/1000...|/39.370079|*24.5
....Inch.....................|*100000.|*1000...... ..|..........|*25.4........|*24500
....mm.......................|/0.00025.|*39.370079|/25.4...|...............|*1000
....microns (um or mym)|/0.245....|/24.5........|/24500.|/1000........|........

No it has some errors.I don't know where the 24.5 comes from; it is incorrect. The legal definition of an inch is 25.4 mm exactly (the US has no primary inch, foot, or yard standards, they are declared fractions of metric standards), and only this figure should be used. 1000 µm = 1 mm. The 39.370079 figure is the approximate number of inches in a meter; however, it is a repeating decimal and it is better to multiply or divide by 25.4 mm/in as required.

The following is predicated on 100 gauge = 1 mil. However, the word "gauge" has so many meanings, who knows?

From This (below).......|Gauge.....|mil........|Inch.....|mm .........|microns
....Gauge...............|..........|/100.......|/100000..|*0.000254..|*0.254
....mil ..............|*100......|...........|/1000....|*0.0254....|*25.4
....Inch................|*100000...|*1000......|.. .......|*25.4......|*25400
....mm..................|/0.000254.|/0.0254....|/25.4....|...........|*1000
....microns (um or mym).|/0.254....|/25.4......|/25400...|/1000......|........

PEGlala
05-28-2010, 07:08 PM
No it has some errors.I don't know where the 24.5 comes from; it is incorrect. The legal definition of an inch is 25.4 mm exactly (the US has no primary inch, foot, or yard standards, they are declared fractions of metric standards), and only this figure should be used. 1000 µm = 1 mm. The 39.370079 figure is the approximate number of inches in a meter; however, it is a repeating decimal and it is better to multiply or divide by 25.4 mm/in as required.

The following is predicated on 100 gauge = 1 mil. However, the word "gauge" has so many meanings, who knows?

From This (below).......|Gauge.....|mil........|Inch.....|mm .........|microns
....Gauge...............|..........|/100.......|/100000..|*0.000254..|*0.254
....mil ..............|*100......|...........|/1000....|*0.0254....|*25.4
....Inch................|*100000...|*1000......|.. .......|*25.4......|*25400
....mm..................|/0.000254.|/0.0254....|/25.4....|...........|*1000
....microns (um or mym).|/0.254....|/25.4......|/25400...|/1000......|........

that's great. I double checked your work and my work from other sources and the figures work out just right. thanks for the help! I will be carrying around this chart in my quest for plastic sheets/films. :)

guest
06-07-2010, 11:04 AM
1 mil = 0.001 inches (1 inch = 25.4 mm) therefore
1 mil = 0.0254 mm or 25.4 microns

Unregistered
06-11-2010, 09:14 PM
As per my resserch, if you wanna convert ga to another unit, you should know what product you are measure firstly. Different products have different ga formula or table.

Unregistered
06-20-2010, 10:29 PM
my research shows that for plastic film 1 gauge is equal to 0.01 mil, that would be 0.254 micron or 0.000254 millimeter.

Guage * 0.01 = mil
mil / 0.01 = guage

mil * 0.0254 = millimeter
millimeter / 0.0254 = mil

thank you - this has helped me pass the sample and get huge orders

giri india

Unregistered
08-18-2010, 07:25 AM
20.3 microns = 80 gauge

Unregistered
11-03-2010, 04:24 PM
80 gauge stretch film is 20.3 microns thick, yes. I don't know how microns compares to mil thickness though.

Unregistered
01-05-2011, 04:12 AM
what is the minimum and maximum thickness value for the plastics?

Unregistered
02-14-2011, 12:25 PM
Jeez ! That cleared it up in my mind.

Unregistered
03-26-2011, 11:08 PM
I found a conversion (mm/ gauge) for sheet metal (ferrous and nonferrous) but I can't seem to find a way to convert plastic thicknesses between "mil", "mm" and "gauge". Each brand seems to use their own unit - making it impossible to compare. Your help would be most appreciated.

500 gauge & 700 Gauge how many mm?

JohnS
03-27-2011, 02:57 AM
500 gauge & 700 Gauge how many mm?

Assuming 500 and 700 gauge mean 5 and 7 mils, respectively, then 127 and 178 µm (divide by 1000 for mm)

Unregistered
06-17-2011, 06:46 AM
I am looking to buy some plastic bags to uses as Ice bag. You put ice in them when you hurt yourself. The Company in US tells me they are extra thick at 0.6 microns? Is this thick?

JohnS
06-17-2011, 10:20 AM
I am looking to buy some plastic bags to uses as Ice bag. You put ice in them when you hurt yourself. The Company in US tells me they are extra thick at 0.6 microns? Is this thick?

No, that is extra thin. 0.001 uinches is 25.4 µm.

I would say aroun 50 µm is the beginning of "thick" and perhaps 100 µm for "extra thick."

Shirley Cosby-Knox
06-30-2011, 04:19 AM
How much would be 250 microns in guage ??

Unregistered
07-22-2011, 02:30 PM
Hi, I'm quite new to this and ran across it while trying to figure out how to get the mil of a bag if all I have is the length, width and weight in grams. Can anyone help me?

I have a bag that is 48" x 14" and weighs 7.9 grams

Unregistered
07-31-2011, 09:55 AM
[QUOTE=Unregistered;39893]How much would be 40 MICRONS in guages?

Unregistered
08-23-2011, 07:30 PM
[QUOTE=Unregistered;39893]How much would be 40 MICRONS in guages?

40/0.254
= 157.48 gauge.

I am dealing with european market for plastic stretch film which use metrical measure. Now I am entering American market for the same product a bit head ache in the first time however I found a way and make my self a table when it comes to converting american standard specification for Stretch film into European.

American standard is Width (inch) Length (Feet) Thickness (Gauge)
European standard is Width (Mili meter) Length (Meter) Thickness (Micron)

xInch*254=MM Xfeet*0.3048=M Xgauge*0.254=Micron.

I find it helpful when I am offering a stretch film to American Company.
I hope yo'll find this info usefull....If you have more info and want to share please email me
mziere@yahoo.com.

JohnS
08-25-2011, 04:48 AM
[QUOTE=Unregistered;79821]

40/0.254
= 157.48 gauge.

I am dealing with european market for plastic stretch film which use metrical measure. Now I am entering American market for the same product a bit head ache in the first time however I found a way and make my self a table when it comes to converting american standard specification for Stretch film into European.

American standard is Width (inch) Length (Feet) Thickness (Gauge)
European standard is Width (Mili meter) Length (Meter) Thickness (Micron)

xInch*254=MM Xfeet*0.3048=M Xgauge*0.254=Micron.

I find it helpful when I am offering a stretch film to American Company.
I hope yo'll find this info usefull....If you have more info and want to share please email me
mziere@yahoo.com.

Agree with the last two conversions. Note that 1 inch = 25.4 mm, exactly. You are missing the decimal

Unregistered
09-03-2011, 06:58 PM
Simply, is the higher the number mean the thicker the plastic? 1 being thinner than 6?

JohnS
09-04-2011, 03:09 AM
Simply, is the higher the number mean the thicker the plastic? 1 being thinner than 6?

Yes, which is the reverse of most wire and sheet metal gauge systems.

Unregistered
09-06-2011, 01:39 AM
Hi, I'm quite new to this and ran across it while trying to figure out how to get the mil of a bag if all I have is the length, width and weight in grams. Can anyone help me?

I have a bag that is 48" x 14" and weighs 7.9 grams

ANSWER: you also need density of the polybag to get the 'mil' which is the thickness (G) measurement of it.

calculation: density(D)= D gm/cm3

D = 7.9/48*2.54*14*2.54*G

T = 7.9/48*2.54*14*2.54*D cm = x cm (say the value as 'x')

x cm = 100x mm = 100x/.0254 mil

I hope you will calculate it now...

Unregistered
10-12-2011, 09:36 AM
My research shows that for plastic film 1 gauge is equal to 0.01 mil, that would be 0.254 micron or 0.000254 millimeter.

guage * 0.01 = mil
mil / 0.01 = guage

mil * 0.0254 = millimeter
millimeter / 0.0254 = mil

This was really helpful! Thank you!
For those who are confused, 1 mil is an english (imperial) measurement = .001 inch
mil is Latin for thousand (or derived from) and not to be confused with a metric term.

Unregistered
11-03-2011, 05:27 AM
Hi, I'm quite new to this and ran across it while trying to figure out how to get the mil of a bag if all I have is the length, width and weight in grams. Can anyone help me?

I have a bag that is 48" x 14" and weighs 7.9 grams

Your bag would be 10 micron thick
or 0.254 mil
or 39.4 gauge

Lucky12
11-03-2011, 05:29 PM
Hi community,

How do you calculate plastic bag straight gauge and thick-thin gauge in low and high density polyethylene and polypropolene.

Thank you in advance for your assistance.

Joseph Gonzalez

Unregistered
12-01-2011, 10:59 AM
Re: PET Films Thickness
Please kindly advise 50.4 GSM (36/uf) = how many points?

Thanks,
Eric Wang

WIC168@YAHOO.COM

Yogendra Sharma
03-03-2012, 01:30 AM
How many Gauge & GSM in 150 LDPE.

Unregistered
03-20-2012, 06:28 AM
150 gauge =? micron

Unregistered
08-01-2012, 03:05 AM
Help...Can i confirm that 1000 guage means 0.25mm thick?

Unregistered
08-29-2012, 06:04 AM
How much would be 250 microns in guage ??

250 Mic equals 9.8 mil
you divide mic by 25.4=™mil

Unregistered
12-25-2012, 01:38 AM
we required the gauge of plastic sheet in mm

Unregistered
03-22-2013, 08:56 AM
Yes, 20.3 = 80 ga film

Pragnesh
03-25-2013, 12:36 AM
How to calculate 1000 mm width of 12 micron i.e 48 gauge, Pet film of 1000 meter into kg / Pound?

Unregistered
05-18-2013, 12:12 AM
How to convert 150microns to mm for PVC

JohnS
05-18-2013, 03:18 AM
How to convert 150microns to mm for PVC

The term micron is obsolete, should be micrometer (µm). 150 µm is 0.15 mm,
1000 µm = 1 mm.

golebabu
08-18-2013, 06:13 AM
How can we check microns in polytheen

Unregistered
09-26-2013, 05:40 AM
how to find thickness of sheet for disposable cups in thermoforming

JohnS
09-26-2013, 06:58 AM
how to find thickness of sheet for disposable cups in thermoforming

I'd just measure the sheet stock and the finished cup. I would expect the molding operation to create some change between sheet stock and finished cup, but if your molding operation is consistent, the change should be consistent.

Unregistered
01-23-2014, 04:10 AM
does 20.3 mil strech wrap = 80 gauge ?

Dear It will be 81.2 guage
Direct formula in simple word is
micron x 4 guage

Unregistered
03-05-2014, 06:25 AM
I found a conversion (mm/ gauge) for sheet metal (ferrous and nonferrous) but I can't seem to find a way to convert plastic thicknesses between "mil", "mm" and "gauge". Each brand seems to use their own unit - making it impossible to compare. Your help would be most appreciated.

0.2 mm LDPE plastic sheet convert in to gauge