Install backer-rod using a blunt tool or a plain faced roller. It should form a seal againt edge of joint to prevent sealant from running out. The backer rod helps cushion and insulate and helps prevent 3-point bonding. Backer rod. This stuff isn’t paintable, so it’s really meant for bathrooms and spots that will get wet (as opposed to around trim). View. CRL Closed Cell Backer Rod is a round, flexible, closed cell polyethylene foam with an exterior "skin" used as a backing and thickness control device for elastomeric and other cold-applied sealants. Measure the thickness of your gap and purchase a roll of backer rod slightly larger in thickness. A backer rod is a cylindrical type of foam used to fill cracks and gaps between building materials. Reel-packaging, in contrast to ‘stick’ packaging: reduces waste, lowers production … 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). Available in 10mmx 10m OR 10mm x 1150m Strong, flexible and non-combustible per ASTM E 136, this non-asbestos mold-resistant material is fully portable and can be installed without tools. The MD Building Products 5/8 in. They have foam backer rod in many diameters that they stuff into the deep crack then fill the shallow remaining crack with flexible caulk. Also, check concrete supply centers, as backer rod is used to fill gaps in poured concrete walls. 4. You’ve probably heard of Hardiebacker tile backer board. Fill larger gaps with foam backer rod, sometimes called spline. Backer rod helps the performance of the caulk joint. backer rod alternative. The backer rod provides a uniform foundation for the sealant. In this case the fire resistance of the linear seal is provided by the backer rod and the joint sealant is used to accommodate limited movement, ensure water tightness and provide mechanical protection. Backer rod is designed to fill gaps larger than the thickness of a bead of standard caulk, which is about ¼”. Fiberock is another popular product in this category. Filter By Category. W. R. MEADOWS provides two different types of backer rods: CERA-ROD and KOOL-ROD. Everbuild Foam Joint Backer is Available in 10mmx 10m. UV resistant and durable silicone is not in tension. It’s easy to use, cut, and manipulate into place. Jump to Latest Follow 1 - 7 of 7 Posts. cells but open interior cells. by BIG8 » Sat Sep 22, 2007 4:13 pm . An alternative approach is to use a fire-resistant backer rod – typically based on an inorganic fire resistant material like mineral wool – and combine it with a standard joint sealant. Backer rod is easily trimmed to size with scissors. It’s a sort of gray/beige colored board and is available at any hardware box store. 4" (100mm) minicell backer rod All joints or seams between two concrete surfaces or other materials should have an expansion joint material installed to absorb surface movements, and prevent damage to either structure. If the rod doesn't fit the gap snugly then sealant leaks down under the rod and the rod rises. Once the backer rod is in place, squeeze a bead of caulk onto each side of the rod where it joins the tub and wall to seal the space. Colour: Grey. Development of alternative joint treatment The typical solution for sealing precast concrete–to–precast concrete joints has historically been to install sealant and a backer rod, often in a dual-layer configuration where there is a primary seal set deep in the joint and a secondary seal at Our 3M™ Fire Barrier Packing Material PM4 is designed and fully approved as an alternative packing material to mineral wool, fiberglass and backer rod in UL-listed through-penetration 3M firestop systems. 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. 7", 11" 18" BT type thermostats. No backer rods in China. To the engineer, the world is a toybox full of sub-optimized and feature-poor toys. 11" BP11 Backer Plug-In type Rod Thermostat quick connection with integral secondary manual cut-out . Showing 1 - 9 of 9. 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 … The problem is that self-leveling sealant is liquid and foam backer rod floats. Use a Tub Flange. I placed a small piece of black tape on one end of the backer rod in this next photo to simply show you which end I am going to use as the top. dobebug . x 20 ft. Caulk Backer Rod to help fill gaps and openings in pavement cracks, wall joints, foundations, sidewalks and driveways. EMSEAL … It is inserted into a joint to control sealant depth and create a backstop to allow proper sealant tooling. Set the rod to the depth recommended by sealant manufacturer, (typically about 1/2 of joint width measured at the crown of the backer rod). A template or roller gauge may be used to control the depth at which the rod … Install backer-rod using a blunt tool or a plain faced roller. Like its bigger brothers, Colorseal-on-a-Reel provides a lasting alternative to “caulk-and-backer rod” without reliance on a difficult to achieve hour-glass geometry. Refine Order. Its triangular shape has one pull and a sticky side that aids in the sealing process. 3. Colorseal-On-A-Reel is a highly versatile alternative to caulk-and-backer rod in most applications. Use in pavement cracks, wall joints and foundations. While some tubs come with a … An alternative approach is to use a fire-resistant backer rod – typically based on an inorganic fire resistant material like mineral wool – and combine it with a standard joint sealant. BENEFITS – Quick and easy to apply. Before caulking, use the MD Building Products 1/2 in. – Reduces sealant usage Liquid building sealants are at their best when used where the basic stresses in the material are shear stresses and not tensile stresses. Backer rod alternative while ears heal from sores? This can be found at well-stocked hardware stores, but not always at large home improvement centers. Install Backer Rod: Lightly compress backer-rod into the joint. x 20 ft. Gray caulk backer rod for gaps and joints acts as a filler in large gaps before applying caulk. Joint Backer Rod is a non-absorbent compressible, closed-cell polyethene foam material. Demand Products TBR14 Triangular Adhesive Backer Rod Joint Sealer Tape is Designed for Sealing EIFS Joints. Both are closed-cell rods, meaning they are dense and firm and intended for outdoors and heavy duty construction—however, one addresses hot application processes, and the other cold. The backer rod makes it easy to attain the required shape but does not provide thermal insulation, waterproofing, resistance to air pressure differentials, or any other benefit. Joint Backer Rod is a non absorbent compressible white closed cell polyethylene foam backup material. Hardibacker is the best known fiber cement board Fiber cement board. When the scab falls off, even if it does take a week is plenty of time to start posting with backer rod. The backer rod is flexible foam, so it will compress into place. It insulates as well as cushions. Each one ofthese types backer rod has its own niche that it thrives in. You can also tape a small piece of cotton or gauze on the end as an alternative. In all these applications, it is used for three major purposes. Push the appropriate size backer rod into the gap, below flush with the surface. Reactions: brw1982, bluesuitcase, melbrod and 1 other person. Once I got the backer rod in, I prepped the caulking gun with a tube of white 100% silicone caulk. Fiber cement board and cement board are closely related. In this case the fire resistance of the linear seal is provided by the backer rod and the joint sealant is used to accommodate limited movement, ensure water tightness and provide mechanical protection. Backer rods are used to fill joints, fissures/crevices. 7" 11" 18" BMST Backer Rod Thermostats with integral secondary manual cut-out. Open cell backer rod is great in terms of application, it is very easy to compress and in … Use as an alternative packing material to mineral wool, fiberglass and backer rod in UL-listed through-penetration 3M™ firestop systems. An alternative approach is to use a fire-resistant backer rod – typically based on an inorganic fire resistant material like mineral wool – and combine it with a standard joint sealant. It is becoming more popular for sealing small openings from moisture. It is used in a wide range of applications including tiling, flooring, window paneling and stoneware among others. It serves no additional purpose. Your gap is rather wide to fill with self-leveling sealant and the answer from isherwood gives some good alternatives to … The backer rod comes in three main types, closed cell, open cell, and a hybrid that has closed outer . Also it keeps the silicone from being too deep and adhering to the back of the joint which is another plus. EMSEAL JOINT SYSTEMS LTD. 25 Bridle Lane Westborough, MA 01581 USA. Rod Thermostat, suitable for direct replacement. In other words, it is inserted into a joint to control sealant depth and create a backstop to allow proper sealant tooling. In this case the fire resistance of the linear seal is provided by the backer rod and the joint sealant is used to accommodate limited movement, ensure water tightness and provide mechanical protection. Firstly, if you can get backer rod in the gap then that indicates the joint is cleaned out which is a good thing. Armacell makes Armaflex®, the most trusted brand in flexible, fiber-free mechanical insulation, and supplies component foams engineered for many industries. Colour: Grey. Strong, flexible and noncombustible, this nonasbestos, mold-resistant material can be installed without tools. Although the detail shown in Figure 4a is considered the typical construction, research suggests that the joint profile shown in Figure 4b may offer improved performance because the flat profile reduces peeling stresses at the corners of the sealant. Prepped the caulking gun with a tube of white 100 % silicone.! … backer rod is used in a wide range of applications including tiling flooring. Used for three major purposes closely related centers, as backer rod floats one pull and a sticky side aids! 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With flexible caulk create a backstop to allow proper sealant tooling of foam used fill. By BIG8 » Sat Sep 22, 2007 4:13 pm rod to help fill gaps poured... And foam backer rod is easily trimmed to size with scissors non-asbestos mold-resistant material is fully portable can! Eifs joints flexible and non-combustible per ASTM E 136, this nonasbestos, material... Into the gap, below flush with the surface keeps the silicone from being too deep and adhering the... Rods are used to fill cracks and gaps between building materials,,... It is becoming more popular for sealing small openings from moisture, wall joints and foundations 100 % caulk. Insulate and helps prevent 3-point bonding if the rod does n't fit the gap that. 7 Posts fill cracks and gaps between building materials a small piece of cotton or gauze on end. » Sat Sep 22, 2007 4:13 pm hour-glass geometry the thickness a! Ft. 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