Backer Rod For Caulking Tub

Backer rods are flexible foam tubes of different densities.

Backer rod for caulking tub.

How to use backer rod caulking material step 1. Watch our syndicated tv show today s h. Use a cloth and water diluted detergent to scrub. Before caulking use the md building products 1 2 in.

Use a putty knife to. The backer rod should be larger than the joint and be compressed into it. 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. They can be made of several different.

Clean all surfaces to you want the caulking material to adhere. 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. 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.

The backer rod helps cushion and insulate and helps prevent 3 point bonding. Fill very deep or very wide gaps up to 6 inches with a backer rod before applying the caulk. The sealant cannot be applied too thick or too thin for it to perform correctly.