Silicone 1-1/8" Wide x 4" Long Setting Block - 1/4" Thick

Protect your sealed unit and install silicone setting blocks, which won't react to silicone or urethane. Color is black for some sizes and mint green for others.

Sold by: Each       

Thickness: 1/4 in.

Wide: 1-1/8"

Length: 4"     

Durometer (Hardness approx.): 80

Sealed unit window warranties may be voided by the use of rubber setting block.

Protect your sealed unit warranty and install silicone setting blocks, which won't react to silicone or urethane.

Color is black for some sizes and mint green for others.