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.
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
Choose from:
PREFILL25 - Use for cracks 1/4 inch wide and narrower. Coverage – 10 linear feet
PREFILL-25-1 - Use for cracks1/2 inch wide. Coverage 10 linear feet
PREFILL-1 - Use for cracks 1 inch wide. Coverage 10 linear feet