Pond Shield Crack Prefill 1/2 inch x 10 Feet

The perfect companion product to Crack RX caulk, Crack RX Prefill is a nontoxic polyurethane cord that provides a stable caulking surface within a crack. Use Crack RX Prefill to set the caulk at the proper depth allowing the finished caulk to cure out properly and completely. Crack RX Prefill is able to be compressed within a crack which in turn allows you to control the amount of caulk needed to render repairs. Simple to use. Just cut to the proper length, insert into the crack to the proper depth and then apply Crack RX caulk to finish the job. Use for cracks 1/4 inch to 1/2 inch wide Coverage – 10 linear feet Color: Light Gray Reduced caulk consumption through the ability to control sealing depth Fits a wide variety of gaps due to compression Provides a stable caulking surface Prevents excessive use of caulk Perfect for irregular joint applications