U Channel Insulation | McMaster-Carr

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	Shape Shape	Show

U Channel

	Shape Shape	Hide

	System of Measurement System of Measurement

Inch

	Wall Thickness Wall Thickness

	Outside Height (D) Outside Height (D)

	Material Material

Fiberglass

Foam

	Length Length

3 ft.

6 ft.

	Color Color

	Black		Blue
	Green		Red

	Performance Properties Performance Properties

	Inside Height (B) Inside Height (B)

	Density Density

0.063 lbs./cu. in.

1.7 lbs./cu. ft.

2.3 lbs./cu. ft.

	Maximum Temperature Maximum Temperature

Less than 500° F

Not Rated

	Texture Texture


Coarse	Smooth

	Hardness Rating Hardness Rating

Ultra Soft

Hard

	For Use Outdoors For Use Outdoors

Yes

	Flexibility Flexibility

	Semi-Rigid
	Rigid

	Tensile Strength Rating Tensile Strength Rating

Good

Not Rated

	Tensile Strength Tensile Strength

10,000-15,000 psi

Not Rated

	Dielectric Strength Dielectric Strength

200-600 V/mil

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Minimum Temperature Minimum Temperature

-99° to 0° F

Not Rated

	Leg Edge Shape Leg Edge Shape

Round

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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43 Products

About Foam

About Composites

Super-Cushioning Foam U-Channels

The open top allows these foam U-channels to slide over and cushion an edge. Use them in packaging applications. This polyethylene foam has closed-cell construction, which restricts water, air, and gases from being absorbed.

For technical drawings and 3-D models, click on a part number.

U-Channels with Coarse Texture

Color: Green, Black, or Blue
Temperature Range: Not Rated
Cell Type: Closed
For Use Outdoors: Yes
Flexibility: Semi-Rigid
Density: Green and Blue: 1.7 lbs./cu. ft.; Black: 2.3 lbs./cu. ft.
Pressure to Compress 25%: Not Rated
Tensile Strength Rating: Not Rated
Oil-Resistance Rating: Not Rated

		Outside		Inside
Wall Thick.	Base Thick.	Wd.	Ht.	Wd.	Ht.	Lg., ft.	Color		Each
1/4"	3/4"	2"	1 3/4"	1 1/2"	1"	6	Black	0000000	000000
1/2"	1/2"	1 1/2"	1 1/2"	1/2"	1"	6	Green	0000000	00000
1/2"	3/4"	2.15"	1 3/4"	1 1/4"	1"	6	Blue	0000000	00000

Arc-Resistant GPO3 Fiberglass U-Channels

Color: Red
Tensile Strength: 10,000-15,000 psi (Good)
Impact Strength: 8.2-12 ft.-lbs./in. (Excellent)
Hardness: See table
For Use Outdoors: No
Specifications Met: UL 94 V-0

These GPO3 fiberglass U-channels are often used for electrical applications in humid environments. They are arc and track resistant, plus they have better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're also called polyester-grade industrial laminate.

For technical drawings and 3-D models, click on a part number.

Outside				Inside
Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Hardness	Straightness Tolerance		Each
3 ft. Lg.
1/16" Wall Thick. (-0.015" to 0.015")
2 3/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
1/8" Wall Thick. (-0.025" to 0.025")
2 9/16"	-0.063" to 0.063"	1 7/32"	-0.032" to 0.032"	2 5/16"	1 3/32"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
1/8" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	9/16"	-0.062" to 0.062"	1 3/4"	7/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2"	-0.062" to 0.062"	13/16"	-0.062" to 0.062"	1 3/4"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2 5/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3 19/32"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 11/32"	1"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4 1/4"	2 3/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
9 21/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	9 13/32"	1 1/2"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
5/32" Wall Thick. (-0.02" to 0.02")
5 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	5 3/16"	1 3/32"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3/16" Wall Thick. (-0.025" to 0.025")
3 9/16"	-0.063" to 0.063"	2 9/16"	-0.032" to 0.032"	3 3/16"	2 3/8"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
4 3/4"	-0.063" to 0.063"	1 5/8"	-0.032" to 0.032"	4 3/8"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
3/16" Wall Thick. (-0.02" to 0.02")
4"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3 5/8"	1 3/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
8 1/2"	-0.062" to 0.062"	2 11/16"	-0.062" to 0.062"	8 1/8"	2 1/2"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
1/4" Wall Thick. (-0.025" to 0.025")
6 1/2"	-0.040" to 0.040"	2 3/4"	-0.020" to 0.020"	6"	2 1/2"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
1/4" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	1"	-0.062" to 0.062"	1 1/2"	3/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
3"	-0.062" to 0.062"	7/8"	-0.062" to 0.062"	2 1/2"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	2 1/2"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 1/2"	7/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4"	2 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
3/8" Wall Thick. (-0.025" to 0.025")
11 9/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	10 17/32"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
6 ft. Lg.
1/16" Wall Thick. (-0.015" to 0.015")
2 3/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
1/8" Wall Thick. (-0.025" to 0.025")
2 9/16"	-0.063" to 0.063"	1 7/32"	-0.032" to 0.032"	2 5/16"	1 3/32"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
1/8" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	9/16"	-0.062" to 0.062"	1 3/4"	7/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2"	-0.062" to 0.062"	13/16"	-0.062" to 0.062"	1 3/4"	11/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
2 5/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
3 19/32"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 11/32"	1"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4 1/4"	2 3/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
9 21/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	9 13/32"	1 1/2"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
5/32" Wall Thick. (-0.02" to 0.02")
5 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	5 3/16"	1 3/32"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
3/16" Wall Thick. (-0.025" to 0.025")
3 9/16"	-0.063" to 0.063"	2 9/16"	-0.032" to 0.032"	3 3/16"	2 3/8"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
4 3/4"	-0.063" to 0.063"	1 5/8"	-0.032" to 0.032"	4 3/8"	1 7/16"	Barcol 50 (Hard)	0.050" per ft.	0000000	00000
3/16" Wall Thick. (-0.02" to 0.02")
4"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3 5/8"	1 3/16"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
8 1/2"	-0.062" to 0.062"	2 11/16"	-0.062" to 0.062"	8 1/8"	2 1/2"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000
1/4" Wall Thick. (-0.025" to 0.025")
6 1/2"	-0.040" to 0.040"	2 3/4"	-0.020" to 0.020"	6"	2 1/2"	Barcol 50 (Hard)	0.050" per ft.	0000000	000000
1/4" Wall Thick. (-0.02" to 0.02")
2"	-0.062" to 0.062"	1"	-0.062" to 0.062"	1 1/2"	3/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
3"	-0.062" to 0.062"	7/8"	-0.062" to 0.062"	2 1/2"	5/8"	Rockwell M95 (Hard)	0.050" per ft.	0000000	00000
3"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	2 1/2"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	00000
4"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 1/2"	7/8"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4"	2 1/4"	Rockwell M95 (Hard)	0.050" per ft.	00000000	000000
3/8" Wall Thick. (-0.025" to 0.025")
11 9/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	10 17/32"	1 1/4"	Rockwell M95 (Hard)	0.050" per ft.	0000000	000000