Polyethylene Foam Backer Rods

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For Maximum Joint Width

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Material

Cross-Linked Polyethylene Foam

Cell Type

Maximum Temperature

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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Export Control Classification Number (ECCN)

EAR99

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24 Products

Backer Rods

Image of Attribute. Front orientation. Contains Annotated, Border.

Provide support for sealants in gaps—insert these backer rods into gaps and fill in with sealant.

Closed-Cell Foam—Closed-cell backer rods restrict moisture from being absorbed. Use them with joints that have wide, even spaces.

Open/Closed-Cell Foam—Open/closed backer rods are more compressible than closed-cell ones. They also restrict moisture from being absorbed. Use them with uneven joints where self-leveling is needed.

Open-Cell Foam—Open-cell backer rods are the most compressible and maintain their shape better than open/closed ones. They allow moisture to be absorbed. Although they withstand environments up to 500° F, they shouldn’t be used with hot-pour sealants, which can seep through the large cell size and damage the underlying surface.

	Dia.	Lg., yd.	Min. Temp., ° F	Max. Temp., ° F	Color		Each
Closed-Cell Polyethylene Foam



	1/4"	3/8"	33	-45	160	Gray	77605T422	000000


	1/4"	3/8"	600	-45	160	Gray	77605T423	000000
	1/2"	5/8"	33	-45	160	Gray	77605T442	00000
	1/2"	5/8"	515	-45	160	Gray	77605T443	000000
	11/16"	7/8"	33	-45	160	Gray	77605T462	00000
	11/16"	7/8"	280	-45	160	Gray	77605T463	000000
	3/4"	1"	16	-45	160	Black	77605T114	00000
	3/4"	1"	183	-45	160	Black	77605T115	000000
	15/16"	1 1/4"	16	-45	160	Black	77605T116	00000
	15/16"	1 1/4"	133	-45	160	Black	77605T117	000000
	1 1/8"	1 1/2"	140	-45	160	Black	77605T118	000000


	Open/Closed-Cell Polyethylene Foam



			1/4"	3/8"	33	-45	160	Gray	77605T511	00000


			1/2"	5/8"	33	-45	160	Gray	77605T512	00000
			11/16"	7/8"	33	-45	160	Gray	77605T513	00000
			7/8"	1 1/8"	16	-45	160	Gray	77605T464	00000
			7/8"	1 1/8"	167	-45	160	Gray	77605T465	000000
			1 1/8"	1 1/2"	140	-45	160	Gray	77605T466	000000
			1 1/2"	2"	84	-45	160	Gray	77605T467	000000
			1 7/8"	2 1/2"	54	-45	160	Gray	77605T469	000000
			2 1/4"	3"	34	-45	160	Gray	77605T471	000000
			3"	4"	18	-45	160	Gray	77605T472	000000


			Open-Cell Polyethylene Foam



					1/2"	5/8"	167	-45	500	Yellow	77605T515	00000


					11/16"	7/8"	117	-45	500	Yellow	77605T516	000000
					7/8"	1 1/8"	100	-45	500	Yellow	77605T517	000000