Backer Rod For Caulking Tub

The backer rod should be larger than the joint and be compressed into it.

Backer rod for caulking tub.

The backer rod helps cushion and insulate and helps prevent 3 point bonding. Clean all surfaces to you want the caulking material to adhere. Before caulking use the md building products 1 2 in. Use a putty knife to.

Watch our syndicated tv show today s h. Caulk backer rod to help fill gaps and openings in pavement cracks wall joints foundations sidewalks and driveways. Use a cloth and water diluted detergent to scrub. Backer rods are flexible foam tubes of different densities.

The backer rod will fill up the excess space plus you can control how thick the sealant will be on top of the backer rod filling the joint. How to use backer rod caulking material step 1. Fill very deep or very wide gaps up to 6 inches with a backer rod before applying the caulk. Backer rods are usually round flexible lengths of foam that are used as a backing in joints or cracks to help control the amount of sealant caulking used and create a back stop.

Apply it directly onto the sealant to loosen it. While caulk alone can be applied to narrow cracks gaps wider than 1 4 should be filled with foam backer rod first. Remove old sealant with caulk remover.