BAKER ROD

​Backer rods are cylindrical foam materials used in construction to fill joints and gaps before applying sealants. They serve several essential purposes:

• Sealant Depth Control: Backer rods help control the depth of the sealant, ensuring proper sealant geometry and reducing the amount of sealant needed. ​

• Bond Breaking: They act as bond breakers, preventing the sealant from adhering to the bottom of the joint, which allows the sealant to function correctly by preventing three-sided adhesion. ​

• Compression and Recovery: Made from compressible materials, backer rods can be easily compressed to fit various joint sizes and recover their shape, maintaining the integrity of the seal. ​

Advantages:

• Non-Absorbent: Backer rods are non-absorbent, preventing moisture absorption that could affect the sealant's performance. ​

• Weather Resistance: They exhibit excellent weatherability, resisting ultraviolet light and various environmental conditions, which extends the lifespan of the sealant. ​

• Lightweight: Their lightweight nature makes them easy to handle and install during construction projects. ​

Applications:

Backer rods are commonly used in various applications, including:​

• Concrete Joints: Providing support for joint sealants in pre-cast and cast-in-situ concrete elements.

• Window and Door Installations: Ensuring proper sealing around windows and doors to prevent air and water infiltration. ​

• Pavement and Road Construction: Sealing joints in pavements and roads to maintain structural integrity and prevent water ingress.​

Technical Specifications:

• Sizes: Available in various diameters, typically ranging from 6 mm to 80 mm, and in square sections such as 10 mm x 10 mm, 15 mm x 15 mm, 20 mm x 20 mm, and 25 mm x 25 mm. Custom sizes can be manufactured to suit specific requirements. ​

• Material: Made from closed-cell polyethylene foam, which is chemically inert and resistant to oils, gasoline, and solvents.

• Temperature Range: Designed to withstand temperatures ranging from -30°C to 120°C, making them suitable for various climates and conditions. ​tjikko.in

Incorporating backer rods into construction projects enhances the effectiveness and durability of sealant applications, leading to improved structural performance and longevity.