Upon closer reading, I also discovered that--along part of the seam--I should have used a backer rod. See our inventory of caulk backer rods. above the lip of the tub. It helps prevent 3-sided adhesion while allowing you to control the depth of the sealant. $10.33 $ 10. If the joint or crack to be sealed is 1/4" wide or wider, it is best to install a foam backer rod in the joint — to the proper depth — before applying the caulk. Any gap larger than 1/4" should first be filled with backer rod (it's flexible, foam-like rope), prior to caulking. Builders and contractors often use this tool initially in grooves or cracks and then they apply mortar, sealant, or chinking around it. Visit us today to shop online. Best to make sure it's not an issue before caulking. Backer Rod is extruded closed-cell polyethylene rod that is used in cracks, checks and gaps before filling them with log sealants such as Perma-Chink, Energy Seal, Woodsman and Check Mate 2. Backer Rod’s four main benefits: Increase elasticity in the joint sealant. 3/4 in. Most of these joints are saw cut and approximately 3/8" wide. We carry a large selection of items, both commercial and residential, including "niche" products; if you are looking for something that you haven't found in our Store, let us know and we will be happy to assist in finding the right item for you. The rod … Closed Cell Backer Rod Sika Backer Rod is used to partially fill Sika Backer Rod is used to partially fill deep expansion joints and cracks before application of your sealant. Use backer rod for gaps larger than 1/2" x 1/2". Use an open-cell backer rod for gaps of more than 1/2 inch wide. Push the appropriate size backer rod into the gap, below flush with the surface. 80. The Backer Rod becomes an integral part of the joint into which it is installed, and therefore is available in a range of diameters to accommodate joints from 3/16" to 1-5/8" (5 to 41 mm). It is inserted into a clean joint at the required depth before caulking/sealing. A backer rod is a small foam rod or cord that is used to fill joints between tiles or other pieces of building material. However as far as backer-rod is concerned you can use back-rod in a shower. Using foam backer rod to fill a wide crack before caulking. There should be a 1/4" gap between the tub ledge and the backer board. Compare; Find My Store. It if fine to take it to the ceiling too. This is called an expansion joint and allows for some movement between the tub and the wall. If you can learn from my mistakes in using backer rod, make sure it's fully inserted in the gap so no edge sticks out into your caulk plane. Backer Rod. The backer board should overlap the tub flange so the tile has a stable backing to attach to. Other options New from $5.36. £54.34 inc. VAT View Product. Position the backer rod in the gap and push it down below the level of the joint. To caulk wide gaps: Clean out the crack to remove any debris. Reasons to Use a Backer Rod. A backer rod is a cylindrical type of foam used to fill cracks and gaps between building materials. Use only as much caulk as you need. The plastic should go a few inches into tub deck and above your highest backer board. PIERCE INNER FOIL SEAL. It limits the depth of the sealant, thereby preventing excessive use of the sealant, which promotes proper joint design. Screw in backer board using roofing nails and approved screws. Caulk over the backer rod for a long lasting repair. Push foam backer rod into the crack. Backer Rod is an easy to compress rope-like celled foam. If joints are wider than about one-fourth to three-eighths of an inch, stuff the seams first with caulk backer rod, a foam-type material that comes in rope form. In some cases, you may need an L-shaped tub flange to fill in a gap between the wall and your bathtub. It saves money. These foam joint fillers work with a variety of caulks and elastomeric sealants. Get it as soon as Mon, Dec 14. It's stupid!! Plywood: Plywood alone cannot be used as a substrate under tile in showers. above the tub. Backer Rod creates an even depth and supports the sealant / caulk allowing it to form the proper shape (about 2x as wide as deep). No matter how large or small the gap is, fill it with a flexible, waterproof material like .… don't leave room to tuck backer rod in where it is needed. But with many non-organic shower backer boards available as alternatives, there is little reason to use greenboard. The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area. 33. Available in 3/4 in., 20 ft. length. Backer Rod is used to partially fill deep expansion joints and cracks before the application of your sealant. Reduce caulk consumption by controlling sealant depth— this prevents excessive use of caulking or sealant. The vertical portion of the flange will point towards your ceiling, while the horizontal part will attach to your tub’s edge. Using caulk gun, apply sealant into gap. Most caulk comes in a tube that requires a caulk gun, which consists of a “trigger” that drives a … It is used in a wide range of applications including tiling, flooring, window paneling and stoneware among others. Step 4 Put a surface bead of caulk over the filled gap. Manufacturers of most sinks, toilets, tubs etc. Everbuild Sealant Polyethylene Foam Backer Rod 25mm 200m BACK25 Roll Box. After you have pushed the backer rod into place, apply caulk on both sides of the rod to secure it in place. Arrives before Christmas. If you have a large gap between the tub and the shower tiles, you can use "backer rod", which is made just for this purpose to fill the gap first, giving the caulk a good surface back up against. for pricing and availability. As for what type, I'd go with closed-cell for less possibility of water absorption. One of the best ways to save energy in your home is by caulking any cracks around windows and doors. Item #759033. For example, base of a tub, base of a toilet. Flange on the tub is behind the wallboard, the wallboard has liquid waterproofing on it, and there’s foam backer rod at the back of the gap to avoid a 3 … Denver Foam® is an open cell backer rod allowing air to reach both sides of sealant, assuring you the required complete cure. Remove dirt, grease, moisture, soap residue & old sealant from area to be sealed. Caulk joints should not be more than 3/8" thick. Sort By Featured. Some homeowners believe that painting or priming plywood will render it suitable to use as shower/tub backer board. There should be a 1/4" to 3/8" wide notch, with depth a bit more than the width -- this would be perfect for caulking with backer. In all these applications, it is used for three major purposes. Closed-Cell: For joints susceptible to the presence of moisture prior to joint sealing such as horizontal joints. The industry standard is to use 1/2-inch-thick backer board on wall tile installations, such as a tub surround. Apply it to the wall with the bottom edge about 1/4 in. FREE Shipping on orders over $25 shipped by Amazon. Sika 3/4 In. Backer rod is usually found with weather stripping. Celebrat 3 Ply Disposable Protective Face Mask Bacterial Filtration 95% 10pk. Force adhesive into contact with the sides of the joint creating an hour-glass shape for a superior bond. You do not want the Backer Rod to protrude past the surface of the tiles that are being worked with. Welcome to TechnologyLK's eBay store. This stuff isn’t paintable, so it’s really meant for bathrooms and spots that will get wet (as opposed to around trim). While caulk alone can be applied to narrow cracks, gaps wider than 1/4” should be filled with foam backer rod first. Backer Rods. If using a silicone caulk, smooth it with a damp finger. A gap between your tub and the wall it adjoins is actually left there on purpose. The Backer Rod must be snug against the wall and the tub so you will need to select a Backer Rod that is thicker than the largest gap in your repair job. Reading the instructions, it seems as though the silicon sealant I bought was good for just about anything, as long as it didn't involve caulking the tile line on the edge of the tub. Everbuild Sealant Polyethylene Foam Backer Rod 30mm 160m BACK31 Roll Box ... Everbuild Wonder Wipes Antibacterial 100 Wipe Tub WIPE80. I've sometimes failed to get the rod into the gap and when I smoothed the applied caulk, the backer rod was visible. The surface of the Backer Rod must be behind the surface of the wall facing you. They are a pain to get flush so use roofing nails for the rest (need at … Sika 0.75-in x 20-ft Backer Rod. Cement backer board comes in two standard thicknesses, 1/2 inch and 1/4 inch. Step 5 Smooth the caulk as you go. With Backer Rod Manufacturing Inc. being one of the largest manufacturers of backer rod materials in the world and Bay Foam Products Inc. the industry leader in the custom polyethylene foam extrusion product market, we have the capability to support and serve you for your project. For gaps larger than 1/4 inch, you'll need to use a spray foam or backer rod to fill larger gaps, and then follow up with caulk. Backer Rod is available in two basic forms: Closed-Cell and Open-Cell. The design depth keeps the sealant below traffic contact and vacuum lift created by fast moving vehicles. This is not true. First every piece should have 6-8 screws. £59.58 £45.28. Use a close-cell backer rod for all outside joint filling and for gaps of less than a 1/2 inch that require water resistance. Once I got the backer rod in, I prepped the caulking gun with a tube of white 100% silicone caulk. Shop Sika 0.75-in x 20-ft Backer Rod in the Backer Rods department at Lowe's.com. 3. Smooth with a gloved finger or “tool” the caulk into gap. To full gaps wider than 1/4″ use foam backer rod before caulking to prevent the caulk from cracking over time. It helps prevent 3-sided adhesion If using a water-based caulk, smooth it with a damp sponge or rag. Wipe hands & tools thoroughly before washing. Cut nozzle to obtain desired bead size. 4.5 out of 5 stars 136. For backer rod size you generally want 1/8" larger than the joint size, so 3/4" backer rod in this case. 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