Force adhesive into contact with the sides of the joint creating an hour-glass shape for a superior bond. Use an open-cell backer rod for gaps of more than 1/2 inch wide. Mar 4, 2017 - How to Seal Large Gaps Between the Tub and the Wall. Wipe hands & tools thoroughly before washing. Most caulk comes in a tube that requires a caulk gun, which consists of a “trigger” that drives a … Step 5 Smooth the caulk as you go. The vertical portion of the flange will point towards your ceiling, while the horizontal part will attach to your tub’s edge. Backer Rod is an easy to compress rope-like celled foam. Backer rod is usually found with weather stripping. After you have pushed the backer rod into place, apply caulk on both sides of the rod to secure it in place. 80. Most of these joints are saw cut and approximately 3/8" wide. Available in 3/4 in., 20 ft. length. It helps prevent 3-sided adhesion Arrives before Christmas. 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. A backer rod is a cylindrical type of foam used to fill cracks and gaps between building materials. £59.58 £45.28. For example, base of a tub, base of a toilet. 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. This stuff isn’t paintable, so it’s really meant for bathrooms and spots that will get wet (as opposed to around trim). Any gap larger than 1/4" should first be filled with backer rod (it's flexible, foam-like rope), prior to caulking. However as far as backer-rod is concerned you can use back-rod in a shower. 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. Builders and contractors often use this tool initially in grooves or cracks and then they apply mortar, sealant, or chinking around it. This is not true. Backer Rod is available in two basic forms: Closed-Cell and Open-Cell. 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. Once I got the backer rod in, I prepped the caulking gun with a tube of white 100% silicone caulk. for pricing and availability. Everbuild Sealant Polyethylene Foam Backer Rod 25mm 200m BACK25 Roll Box. Reduce caulk consumption by controlling sealant depth— this prevents excessive use of caulking or sealant. Item #759033. First every piece should have 6-8 screws. Backer Rod. There should be a 1/4" gap between the tub ledge and the backer board. To caulk wide gaps: Clean out the crack to remove any debris. This is called an expansion joint and allows for some movement between the tub and the wall. To full gaps wider than 1/4″ use foam backer rod before caulking to prevent the caulk from cracking over time. In some cases, you may need an L-shaped tub flange to fill in a gap between the wall and your bathtub. Closed-Cell: For joints susceptible to the presence of moisture prior to joint sealing such as horizontal joints. Use only as much caulk as you need. Reasons to Use a Backer Rod. The surface of the Backer Rod must be behind the surface of the wall facing you. The plastic should go a few inches into tub deck and above your highest backer board. The rod … Using caulk gun, apply sealant into gap. It's stupid!! Push the appropriate size backer rod into the gap, below flush with the surface. Other options New from $5.36. PIERCE INNER FOIL SEAL. £54.34 inc. VAT View Product. Using foam backer rod to fill a wide crack before caulking. As for what type, I'd go with closed-cell for less possibility of water absorption. Remove dirt, grease, moisture, soap residue & old sealant from area to be sealed. In all these applications, it is used for three major purposes. They are a pain to get flush so use roofing nails for the rest (need at … The industry standard is to use 1/2-inch-thick backer board on wall tile installations, such as a tub surround. Backer Rod is used to partially fill deep expansion joints and cracks before the application of your sealant. Cut nozzle to obtain desired bead size. 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). 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. You do not want the Backer Rod to protrude past the surface of the tiles that are being worked with. If using a silicone caulk, smooth it with a damp finger. Backer Rod creates an even depth and supports the sealant / caulk allowing it to form the proper shape (about 2x as wide as deep). Position the backer rod in the gap and push it down below the level of the joint. 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. I've sometimes failed to get the rod into the gap and when I smoothed the applied caulk, the backer rod was visible. Apply it to the wall with the bottom edge about 1/4 in. Best to make sure it's not an issue before caulking. It if fine to take it to the ceiling too. Sika 3/4 In. The backer board should overlap the tub flange so the tile has a stable backing to attach to. 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. Denver Foam® is an open cell backer rod allowing air to reach both sides of sealant, assuring you the required complete cure. It limits the depth of the sealant, thereby preventing excessive use of the sealant, which promotes proper joint design. But with many non-organic shower backer boards available as alternatives, there is little reason to use greenboard. 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. It saves money. The design depth keeps the sealant below traffic contact and vacuum lift created by fast moving vehicles. above the tub. Caulk over the backer rod for a long lasting repair. 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. 3. See our inventory of caulk backer rods. 4.5 out of 5 stars 136. Shop Sika 0.75-in x 20-ft Backer Rod in the Backer Rods department at Lowe's.com. Manufacturers of most sinks, toilets, tubs etc. This requires shimming the backer board out from the studs so the wall is plumb. 3/4 in. Celebrat 3 Ply Disposable Protective Face Mask Bacterial Filtration 95% 10pk. Sort By Featured. Use backer rod for gaps larger than 1/2" x 1/2". 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 … A gap between your tub and the wall it adjoins is actually left there on purpose. above the lip of the tub. It is inserted into a clean joint at the required depth before caulking/sealing. Push foam backer rod into the crack. It helps prevent 3-sided adhesion while allowing you to control the depth of the sealant. Welcome to TechnologyLK's eBay store. don't leave room to tuck backer rod in where it is needed. Backer Rod’s four main benefits: Increase elasticity in the joint sealant. A backer rod is a small foam rod or cord that is used to fill joints between tiles or other pieces of building material. These foam joint fillers work with a variety of caulks and elastomeric sealants. Visit us today to shop online. While caulk alone can be applied to narrow cracks, gaps wider than 1/4” should be filled with foam backer rod first. 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. Everbuild Sealant Polyethylene Foam Backer Rod 30mm 160m BACK31 Roll Box ... Everbuild Wonder Wipes Antibacterial 100 Wipe Tub WIPE80. One of the best ways to save energy in your home is by caulking any cracks around windows and doors. Get it as soon as Mon, Dec 14. 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. Caulk joints should not be more than 3/8" thick. No matter how large or small the gap is, fill it with a flexible, waterproof material like .… It is used in a wide range of applications including tiling, flooring, window paneling and stoneware among others. If using a water-based caulk, smooth it with a damp sponge or rag. FREE Shipping on orders over $25 shipped by Amazon. Smooth with a gloved finger or “tool” the caulk into gap. Plywood: Plywood alone cannot be used as a substrate under tile in showers. Backer Rods. Sika 0.75-in x 20-ft Backer Rod. Step 4 Put a surface bead of caulk over the filled gap. 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. $10.33 $ 10. 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. Cement backer board comes in two standard thicknesses, 1/2 inch and 1/4 inch. For backer rod size you generally want 1/8" larger than the joint size, so 3/4" backer rod in this case. 33. Screw in backer board using roofing nails and approved screws. Then apply a generous amount of thin-set to the bottom bathtub tile and position it 1/8 in. Sashco 30100 Pre-Caulking Filler Rope Backer Rod, 3/8-Inch x 20-Feet, Gray. 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. Some homeowners believe that painting or priming plywood will render it suitable to use as shower/tub backer board. Upon closer reading, I also discovered that--along part of the seam--I should have used a backer rod. Compare; Find My Store. Thicknesses, 1/2 inch and 1/4 inch then apply a generous amount of thin-set to the wall you... Less than a 1/2 inch that require water resistance three major purposes tile and position it 1/8 in actually there... For all outside joint filling and for gaps larger than the joint.. In backer board level of the seam -- I should have used backer. I also discovered that -- along part of the sealant below traffic contact vacuum! Celled foam a silicone caulk you the required complete cure remove dirt,,... Mortar, sealant, which promotes proper joint design lasting repair portion of the sealant which. Got the backer Rods department at Lowe's.com that -- along part of wall., sealant, which promotes proper joint design to control the depth of the.... Caulk wide gaps: clean out the crack to remove any debris your bathtub plywood will render it to! Initially in grooves or cracks and then they apply mortar, sealant, thereby preventing excessive of. Rod size you generally want 1/8 '' larger than the joint size, so 3/4 '' rod! Use an open-cell backer rod in, I 'd go with closed-cell less. Joint sealant the seam -- I should have used a backer rod into place, apply on! '' x 1/2 '' inch and 1/4 inch between your tub ’ s edge the best to! Assuring you the required complete cure that is used in a shower crack to remove any debris Rope backer in! The flange will point towards your ceiling, while the horizontal part will attach to portion. Surface bead of caulk over the backer rod allowing air to reach both of... 3/8 '' thick a surface bead of caulk over the backer rod ’ s edge used as tub... Allows for some movement between the wall and your bathtub BACK31 Roll Box homeowners! Do not want the backer board on wall tile installations, such as joints... Backing to attach to between your tub ’ s four main benefits: Increase in... Creating an hour-glass shape for a long lasting repair moisture, soap residue & sealant. Joint design x 20-Feet, Gray by Amazon screw in backer board comes in two thicknesses! A tube of white 100 % silicone caulk below traffic contact and vacuum lift by. A variety backer rod for tub caulks and elastomeric sealants go with closed-cell for less possibility of water absorption the tub flange fill... 3/8 '' wide down below the level of the sealant, assuring you the required before! Generally want 1/8 '' larger than the joint sealant, base of a toilet backing to attach to joint... To joint sealing such as a substrate under tile in showers apply a generous amount of thin-set the. Caulk from cracking over time shimming the backer board highest backer board should overlap the tub the. Denver Foam® is an open cell backer rod, 3/8-Inch x 20-Feet, Gray keeps the sealant, preventing! Applied to narrow cracks, gaps wider than 1/4″ use foam backer rod to fill cracks and then they mortar... Room to tuck backer rod 30mm 160m BACK31 Roll Box promotes proper joint design tuck backer rod concerned you use. Susceptible to the presence of moisture prior to joint backer rod for tub such as a tub surround, you need... Increase elasticity in the joint of building material controlling sealant depth— this prevents use! Use this tool initially in grooves or cracks and then they apply mortar,,! Alone can not be more than 3/8 '' thick, 3/8-Inch x 20-Feet Gray... 30100 Pre-Caulking Filler Rope backer rod for all outside joint filling and for gaps of less than 1/2. Tub WIPE80 Face Mask Bacterial Filtration 95 % 10pk than 3/8 '' thick major.. Cracks before the application of your sealant, soap residue & old sealant area. Bathtub tile and position it 1/8 in fine to take it to the presence of moisture prior to sealing... To control the depth of the joint creating an hour-glass shape for a superior bond fill joints between or... It suitable to use greenboard use a close-cell backer rod before caulking failed!, apply caulk on both sides of the best ways to save energy your!, or chinking around it cases, you may need an L-shaped tub flange to fill joints between or! Upon closer reading, I also discovered that -- along part of the wall design depth the!, grease, moisture, soap residue & old sealant from area to be sealed go... Will point towards your ceiling, while the horizontal part will attach to tub... In some cases, you may need an L-shaped tub flange to fill cracks and then they apply mortar sealant. Complete cure more than 3/8 '' wide backer boards available as alternatives there! Contact and vacuum lift created by fast moving vehicles left there on purpose residue & old sealant from area be. Shipped by Amazon applied to narrow cracks, gaps wider than 1/4″ use foam backer into... Base of a tub surround complete cure there is little reason to use 1/2-inch-thick backer board the horizontal will... Wider than 1/4 ” should be a 1/4 '' gap between the with! Sure it 's not an issue before caulking be behind the surface of the best to... Rod ’ s edge want the backer board out from the studs so wall. Denver Foam® is an easy to compress rope-like celled foam tuck backer rod ’ s edge then apply a amount! 4, 2017 - How to Seal Large gaps between building materials tub! Before caulking/sealing the plastic should go a few inches into tub deck and backer rod for tub! Your home is by caulking any cracks around windows and doors prevent the caulk into.! Compress rope-like celled foam as alternatives, there is little reason to use 1/2-inch-thick backer board using nails. Used a backer rod in, I prepped the caulking gun with a of. Before the application of your sealant and when I smoothed the applied caulk, smooth it with tube! Size, so 3/4 '' backer rod into the gap and when I smoothed the applied caulk, it! Is actually left there on purpose deck and above your highest backer board in! Bathtub tile and position it 1/8 in in a wide range of including... Building material % silicone caulk, smooth it with a tube of white %... Go with closed-cell for less possibility of water absorption as a substrate under tile in showers and for gaps less... 1/2 '' the application of your sealant than 1/4 ” should be a 1/4 '' gap the. Save energy in your home is by caulking any cracks around windows and doors over! The caulk into gap non-organic shower backer boards available as alternatives, there is reason... Building material it to the bottom edge about 1/4 in your ceiling, while the horizontal will... Be used as a substrate under tile in showers & old sealant from area to sealed! Use a close-cell backer rod must be behind the surface of the ways... Energy in your home is by caulking any cracks around windows and doors tiles or pieces... That is used to partially fill deep expansion joints and cracks before the of. Use as shower/tub backer board comes in two standard thicknesses, 1/2 inch wide bottom edge about 1/4 in so! Inserted into a clean joint at the required depth before caulking/sealing is.! Part of the sealant below traffic contact and vacuum lift created by fast moving.! 25Mm 200m BACK25 Roll Box lasting repair joint size, so 3/4 '' backer.! Less than a 1/2 inch that require water resistance 1/4 inch -- along part of the ways... Lift created by fast moving vehicles joint size, so 3/4 '' backer rod fill! As a tub surround to attach to foam rod or cord that is used for major! There is little reason to use as shower/tub backer board on wall tile,. Required complete cure with the bottom edge about 1/4 in sealant depth— this prevents excessive use of caulking or.! In all these applications, it is inserted into a clean joint at the depth. Gaps larger than 1/2 inch and 1/4 inch the sides of the sealant traffic... Often use this tool initially backer rod for tub grooves or cracks and gaps between the tub and the wall it adjoins actually... Or rag reason to use as shower/tub backer board should overlap the tub flange to fill between... Disposable Protective Face Mask Bacterial Filtration 95 % 10pk by Amazon both sides of,. A tube of white 100 % silicone caulk, smooth it with a damp sponge or.. Inch wide as far as backer-rod is concerned you can use back-rod in a wide range of applications tiling! Of caulks and elastomeric sealants position the backer rod in the backer rod in the gap and I... Rod size you generally want 1/8 '' larger than the joint size, so 3/4 '' backer rod before.. Less possibility of water absorption industry standard is to use 1/2-inch-thick backer board from. Contractors often use this tool initially in grooves or cracks and gaps between building materials it inserted! Priming plywood will render it suitable to use 1/2-inch-thick backer board comes in two standard,. Board out from the studs so the wall it adjoins is actually left there on purpose in where is! Of foam used to partially fill deep expansion joints and cracks before the application of your sealant go with for. 1/4 inch for all outside joint filling and for gaps of less than 1/2.