CRL 1/2" x 1/2" x 4" Neoprene Setting Blocks - 80 Durometer Backer Rods & Insert Tools They are lint-free and combine

They are lint-free and combine softness

anodized and mill-finished aluminum

Use Tremco® Color Paks only with Tremco® multi-component sealants

This is our most popular sealant

repairs and replacement

CRL 1/2" x 1/2" x 4" Neoprene Setting Blocks - 80 Durometer Backer Rods & Insert Tools They are lint-free and combineThe Preferred Method for Centering and Cushioning Glass 80 Durometer Hardness A variety of sizes are available from stock CRL Neoprene Setting Blocks cushion and support glass, and act as a centering device for glass installed in channels. The neoprene composition of the blocks makes them resilient, so that glass cushioned by them can withstand vibration, shock, and heavy wind loads. A variety of sizes are available from stock. NOTE: May discolor