Foam Half Rounds | McMaster-Carr

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	Material Material

	Diameter Diameter

	Width Width

	Height Height

	Length Length

	Backing Type Backing Type


Plain	Adhesive

	For Use Outdoors For Use Outdoors

Yes

	Color Color

	White		Black
	Beige		Gray
	Red

	Seal Construction Seal Construction


Hollow	Solid

	Mount Type Mount Type

Adhesive

	Adhesive Type Adhesive Type

Acrylic

3M Acrylic

	Maximum Temperature Maximum Temperature

Less than 175° F

350° to 499° F

Not Rated

	Minimum Temperature Minimum Temperature

	Thickness Thickness

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

RoHS Compliant

	For Use With For Use With

Salts

Water

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

DFARS Specialty Metals
COTS-Exempt

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

REACH Compliant

	Flexibility Flexibility

	Semi-Rigid

	Hardness Rating Hardness Rating

Ultra Soft

	Texture Texture

	Coarse

	Tensile Strength Rating Tensile Strength Rating

Not Rated

	Tensile Strength Tensile Strength

Not Rated

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92 Products

About Foam

About Rubber

Super-Cushioning Foam Half Rounds

Use these foam half rounds as a cushioning bumper, as well as 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.

Half Rounds with Coarse Texture

Color: White
Temperature Range: Not Rated
Cell Type: Closed
For Use Outdoors: Yes
Flexibility: Semi-Rigid
Density: 1.8 lbs./cu. ft.
Pressure to Compress 25%: Not Rated
Tensile Strength Rating: Not Rated
Oil-Resistance Rating: Not Rated

	6 ft. Lg.
Dia.		Each
2"	0000000	000000
3"	0000000	00000
4"	0000000	00000

Water- and Weather-Resistant Hollow Foam Rubber Surface-Mount Seals

These EPDM foam rubber seals have hollow construction for more compressibility than solid seals. They resist water, sunlight, and ozone. They’re softer and more flexible than EPDM rubber seals and will effortlessly conform to uneven surfaces to shield against dust, noise, and vibration. The foam has closed-cell construction, which resists absorption.

Seals with an acrylic adhesive backing are good for light duty applications where they won’t be jostled or hit frequently. The adhesive has some resistance to water and chemicals.

Seals with a 3M acrylic adhesive backing are more resistant to peeling and shearing than seals with an acrylic adhesive backing. Use them when you need extra sticking strength to resist repeated impact, such as on a door or door frame. They create a permanent moisture barrier and airtight seal between the seal and the surface it’s stuck to, but only if you let the bond cure for 72 hours.

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

Style A

										Per Ft.
O'all Wd.	Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—3M Acrylic Backing
1 1/2"	0.55"	0.550"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50	000000000	00000	00000

Style D

										Per Ft.
Wd.	Ht.	ID	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
3/8"	7/16"	3/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	00000	00000
1/2"	1/2"	3/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	000	000
1/2"	1/2"	1/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	000	000
5/8"	5/8"	1/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	000
3/4"	3/4"	3/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
1"	1"	1/2"	3"	0° to 140°	0° to 140°	Yes	Black	5, 10, 20, 50, 100	00000000	0000	0000
EPDM Foam—3M Acrylic Backing
3/8"	7/16"	3/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
1/2"	1/2"	3/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000
1/2"	1/2"	1/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000
5/8"	5/8"	1/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000
3/4"	3/4"	3/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
1"	1"	1/2"	3"	0° to 140°	0° to 140°	Yes	Black	5, 10, 20, 50, 100	000000000	0000	0000

Style E

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—3M Acrylic Backing
5/8"	5/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	00000	00000

Style F

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
3/8"	7/32"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	00000	00000
3/8"	7/32"	3"	0° to 140°	0° to 140°	Yes	White	10, 20, 50, 100	00000000	000	000
3/8"	1/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	000	000
15/32"	5/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	000	000
5/8"	3/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	000
3/4"	3/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	000
3/4"	17/32"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
3/4"	9/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
13/16"	3/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
1"	1"	3"	0° to 140°	0° to 140°	Yes	Black	5, 10, 20, 50, 100	00000000	0000	0000
EPDM Foam—3M Acrylic Backing
3/8"	7/32"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
3/8"	7/32"	3"	0° to 140°	0° to 140°	Yes	White	10, 20, 50, 100	0000000	0000	0000
3/8"	1/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
15/32"	5/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000
5/8"	3/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000
3/4"	3/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
3/4"	17/32"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000
3/4"	9/16"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000
13/16"	3/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000
1"	1"	3"	0° to 140°	0° to 140°	Yes	Black	5, 10, 20, 50, 100	000000000	0000	0000

Style G

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
11/16"	1/2"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	00000	00000
EPDM Foam—3M Acrylic Backing
11/16"	1/2"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000

Style H

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
5/8"	3/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	00000	00000
EPDM Foam—3M Acrylic Backing
0.638"	0.370"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	0000	0000

Style J

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
57/64"	1 3/64"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	00000	00000
EPDM Foam—3M Acrylic Backing
57/64"	1 3/64"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50	000000000	0000	0000
1 1/8"	1 1/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50	000000000	0000	0000

Style K

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
1"	5/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	00000	00000
EPDM Foam—3M Acrylic Backing
1"	5/8"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000

Style L

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
0.66"	0.420"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	00000	00000
EPDM Foam—3M Acrylic Backing
0.66"	0.420"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000

Style M

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
7/8"	3/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	00000	00000
EPDM Foam—3M Acrylic Backing
7/8"	3/4"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000

Style R

									Per Ft.
Wd.	Ht.	Bend Radius	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Acrylic Backing
0.66"	0.450"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	00000	00000
EPDM Foam—3M Acrylic Backing
0.66"	0.450"	3"	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	000000000	0000	0000

High-Temperature Foam Rubber Surface-Mount Seals

Made of solid silicone foam rubber, these seals will stand up to hot environments, plus they resist water and salts. They are softer and more flexible than silicone rubber and will effortlessly conform to uneven surfaces to shield against dust, noise, and vibration. The foam has closed-cell construction, which resists absorption.

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

Style D

								Per Ft.
Wd.	Ht.	Temp. Range, °F	Max. Adhesive Temp., °F	For Use Outdoors	Choose a Color	Lengths, ft.		1-99	100-Up
Silicone Foam—Adhesive Back
1/8"	1/8"	-70° to 450°	250°	Yes	Black, Gray	5, 10, 20, 50, 100	00000000	00000	00000
3/16"	3/16"	-70° to 450°	250°	Yes	Black, Gray	5, 10, 20, 50, 100	00000000	0000	0000
1/4"	1/4"	-70° to 450°	250°	Yes	Black, Gray	5, 10, 20, 50, 100	00000000	0000	0000

High-Temperature Hollow Foam Rubber Surface-Mount Seals

It’s the hollow construction that makes these seals more compressible than solid seals. Made of silicone foam rubber, these seals can handle hot environments, plus they resist water and salts. They’re softer and more flexible than silicone rubber seals and will effortlessly conform to uneven surfaces to shield against dust, noise, and vibration. The foam has closed-cell construction, which resists absorption.

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

Style B

							Per Ft.
Wd.	Ht.	Temp. Range, °F	For Use Outdoors	Choose a Color	Lengths, ft.		1-99	100-Up
Silicone Foam—Plain Back
5/8"	3/8"	-60° to 350°	Yes	Black, Red	5, 10, 20, 50, 100	00000000	00000	00000
3/4"	9/16"	-60° to 350°	Yes	Black, Red	5, 10, 20, 50, 100	00000000	0000	0000

Style C

								Per Ft.
Wd.	Ht.	ID	Temp. Range, °F	For Use Outdoors	Choose a Color	Lengths, ft.		1-99	100-Up
Silicone Foam—Plain Back
3/8"	7/16"	3/16"	-60° to 350°	Yes	Black, Red	5, 10, 20, 50, 100	00000000	00000	00000
1/2"	1/2"	1/4"	-60° to 350°	Yes	Black, Red	5, 10, 20, 50, 100	00000000	0000	0000
3/4"	3/4"	3/8"	-60° to 350°	Yes	Black, Red	5, 10, 20, 50, 100	00000000	0000	0000
1"	1"	1/2"	-60° to 350°	Yes	Black, Red	1, 5, 10, 20, 50, 100	00000000	0000	0000

Style D

							Per Ft.
Wd.	Ht.	Temp. Range, °F	For Use Outdoors	Choose a Color	Lengths, ft.		1-99	100-Up
Silicone Foam—Plain Back
0.860"	13/16"	-60° to 350°	Yes	Black, Red	1, 5, 10, 20, 50, 100	00000000	00000	00000

Water- and Weather-Resistant Foam Rubber Flange-Mount Seals

Softer and more flexible than EPDM rubber seals, these EPDM foam rubber seals will effortlessly conform to uneven surfaces. They resist water, sunlight, and ozone. They have hollow construction for compressibility and a flange that can be positioned along a door’s edge to cover gaps and block dust, noise, and vibration. The foam has closed-cell construction, which resists absorption.Seals have an acrylic adhesive backing good for light duty applications where they won’t be jostled or hit frequently. The adhesive has some resistance to water and chemicals.

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

										Per Ft.
O'all Wd.	Wd.	Ht.	Adhesive Type	Temp. Range, °F	Adhesive Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-99	100-Up
EPDM Foam—Adhesive Back
1 1/4"	1/2"	1/2"	Acrylic	0° to 140°	0° to 140°	Yes	Black	10, 20, 50, 100	00000000	00000	00000

High-Temperature Hollow Foam Rubber Flange-Mount Seals

These silicone foam rubber seals are hollow for better compressibility than solid seals. They resist heat, water, and salts. They’re softer and more flexible than silicone rubber seals and will effortlessly conform to uneven surfaces. These seals have a flange that can be positioned along a door’s edge to cover gaps and block dust, noise, and vibration. The foam has closed-cell construction, which resists absorption.

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

Style A

								Per Ft.
O'all Wd.	Wd.	Ht.	Temp. Range, °F	For Use Outdoors	Choose a Color	Lengths, ft.		1-99	100-Up
Silicone Foam—Plain Back
3/4"	1/4"	1/4"	-60° to 350°	Yes	Black, Red	5, 10, 20, 50, 100	00000000	00000	00000
1 1/4"	1/2"	1/2"	-60° to 350°	Yes	Black, Red	5, 10, 20, 50, 100	00000000	0000	0000

EMI/RFI Shielding Gaskets

These gaskets absorb electromagnetic interference (EMI) and radio frequency interference (RFI) to prevent inaccurate signals, flickering displays, and other electrical problems. They compress to fill gaps and complete a grounding path around doors and access panels.

Half-round gaskets work well in grooves. Use a gasket slightly thicker than the depth of the groove; it will compress to fill the gap.

Polyurethane foam gaskets are covered with a conductive nickel/copper braided fabric. A nonconductive adhesive holds them in place. To protect sensitive equipment, they block at least twice as much interference as urethane foam gaskets. They meet UL 94 V-0, so they self-extinguish within 10 seconds if they catch fire and won’t spread the fire by dripping. Cut these gaskets to length with scissors.

Half Round

Polyurethane Foam
Thickness	Width	Length	Interference Reduction @ Frequency	Backing Type	Temperature Range, °F	Color	For Use Outdoors	Specifications Met		Each
0.04"	0.15"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	000000
0.05"	1/4"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.06"	1/8"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.06"	1/4"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.07"	1/8"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.08"	0.08"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.08"	0.16"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.08"	0.394"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.09"	0.09"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.09"	0.15"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.1"	0.3"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.11"	0.18"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	000000	00000
1/8"	3/16"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
1/8"	1/4"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.14"	1/4"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.15"	1/4"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.16"	1/4"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.18"	0.4"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.195"	0.26"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.236"	0.236"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
1/4"	3/8"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.295"	0.355"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.315"	0.63"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
3/8"	1/2"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.43"	1/2"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
9/16"	0.709"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000
0.67"	0.67"	48"	80 dB @ 1 GHz	Adhesive	-40° to 158°	Beige	No	UL 94 V-0	0000000	00000