It is a type of styrofoam material that is meant to be covered-up with a caulking product. I like it because... As expected. Good product that has a variety of different uses. It insulates as well as cushions. Thank you for your interest in our product. The gap to be filled is cleaned thoroughly and left to dry. Backer Rod for Expansion Joint and Crack Repair is a closed-cell backer rod; a soft and pliable filler designed to partially fill concrete expansion joints or cracks in concrete before applying joint sealer caulk. How to Choose the Correct Backer Rod The main idea is to use the foam to fill most of the void in a joint so that caulking or chinking material, a mortar-like seala… She received a Bachelor of Science, honors, in psychology with combined studies covering biology, statistics, economics, politics and sociology. x 20 ft. Grey Poly Foam Caulk Saver, 1/4 in. MD Building Products 19/32 in. Use before caulking to fill gaps and openings larger than 1/2" x 1/2" Prevents 3-point bonding. The caulking material used to seal the bridged gap depends upon the surface material, and most types are easy to apply. MD Building Products 5/16 in. Allow the caulk to dry out and cure before applying a surface finish. Pull on the trigger until the plunger holds the bottom of the caulk tube and is secure. There are two standard types of backer rods that are available to use depending upon the installation site. Also it keeps the silicone from being too deep and adhering to the back of the joint which is … $33.17. This backer rod is closed cell and you will be able to use it outside. Compare; Find My Store. x 20 ft. Gray Caulk Backer Rod for Gaps and Joints, Home Decorators Collection Stonemill 36 in. The Frost King V25BK 5/16 in. Before caulking, use the MD Building Products 1/2 in. Sort By Featured. Lexel 10.5-fl oz Clear Paintable Solvent Caulk. Didn’t seem to work very well for lunch situation. 1. Just stuff it into a gap before caulking and you'll automatically get the ideal seal (thin in the middle, with thicker 'adhesion zones' at edges). There are many places around your house where energy is wasted. Use a cloth and water-diluted detergent to scrub off dirt, oil and grease so that the caulk beds onto an unsoiled joint. Commonly, you use a backer rod to help bridge a gap that is 1/4 to 1/2 inches or more wide. While caulk alone can be applied to narrow cracks, gaps wider than 1/4” should be filled with foam backer rod first. Good price and product. x 20 ft. Gray Caulk Backer Rod for Gaps and Joints acts as a filler in large gaps before applying caulk. Backer rod, also called backer material or back-up rod, is a flexible foam product used behind caulking to increase elasticity, reduce consumption, force the caulking into contact with the sides of the joint creating a better bond, determine the thickness of the caulking, and define the cross-section hour-glass shape of the caulk. The type of backer rod used is governed by the type of sealant used, plus environmental, seismic and temperature requirements. Highly flexible and compressible. It insulates as well as cushions. for pricing and availability. You should use an open-cell backer only for indoor applications. To install, compress backer-rod into the joint before sealants are applied. Great Weatherization item. Please return the incorrect product to the store to exchange it for the correct one. $13.48. Item #759033. Cut the point of the caulk tube nozzle at a 45-degree angle with a sharp utility knife so that the open edge is facing down. Pull the trigger to release the caulk. Backer rod: Insert the backer rod into the gap. Backer rod is easily trimmed to size with scissors. Bond breaker … Backer Rod is used to partially fill deep cracks or joints before applying sealant © 2000-2020 Home Depot Product Authority, LLC. Nothing to write home about. Reduce caulk consumption by controlling sealant depth— this prevents excessive use of caulking or sealant. Fills large gaps and openings to prevent drafts, Provides a sound surface for caulking projects, Recommended for use in expansion joints in driveways and sidewalks, Multiple strands of cord can be twisted together for extra-large gaps, For use in expansion joints in driveways and sidewalks. Installation of the backer rod is quite simple. 20'. It is a high compression product which will spring back to shape even after long exposure to sub-freezing conditions. Saves money. You will need Adobe® Acrobat® Reader to view PDF documents. Backer Rod is intended to be used as a backing for caulking projects. These flexible foam tubes are available at building supply stores in several diameters. It is guaranteed for 10 years. The backer rod most importantly acts as a bond breaker, preventing what is commonly referred to as threesided adhesion. larger than the crack. Saves energy. It is inserted into a clean joint at the required depth before caulking/sealing. Install backer-rod using a blunt tool or a plain faced roller. There are two standard types of backer rods that are available to use depending upon the installation site. Item no. Easy DIY Home Installation. This will work perfectly for that application. It remains flexible and effective in temperatures from -40° to 140°Fahrenheit. Insert backer rod into the gap, then run a bead of caulk over the top. We hate to hear that you received the incorrect product. Push the rod into the gap so the top is about 1/4 in. Builders use these sorts of foam rods for a number of different construction projects, but almost always in the context of filling gaps where materials join together. x 20 ft. Gray Caulk Backer Rod for Gaps and Joints acts as a filler in large gaps before applying caulk. Run a suitably sized spoon back or putty knife along the sealed joint so that it is a shallow concave shape. Fills the joint so you use less caulk. Easy to apply. Sika Backer Rod is used to partially fill deep expansion joints and cracks before application of your sealant. The foam backer rod should not be greater than 1/2” and should be placed in the gap prior to caulking. A word of advice: Keep the urethane caulk off your bare hands and clothes; it’s the stickiest stuff you’ll ever touch. $42.19. It is especially important to use it with Self Leveling Expansion Joint Sealants. x 10 ft. EPDM. Solvents in the paint would probably destroy it. Force the rod to the depth recommended by sealant manufacturer, (typically about 1/2 of joint width measured at the crown of the backer rod). Ordered 5/8 in. Provides a sound surface for caulking projects For filling large gaps and openings For use in expansion joints in driveways and sidewalks Poly foam caulk saver … x 20 ft. Gray Caulk Backer Rod for Gaps and Joints acts as a filler in large gaps before applying caulk.
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