CRL SR38C 3/8" Sof Rod - 100' Roll

C.R. Laurence SR38C 3/8" Sof Rod - 100' Roll is a versatile sealant backing material that combines the best characteristics of open and closed cell backer rods. Designed for seamless integration into various applications, this continuous length of extruded polyolefin foam features a non-absorbent outer layer and a resilient inner structure, providing superior durability and performance. It easily conforms to joint irregularities while maintaining its integrity, ensuring a reliable seal. With a temperature tolerance ranging from -45°F to 160°F (-43°C to 71°C), the Sof Rod is ideal for expansion and contraction joints in EIFS, glazing, curtainwalls, and parking decks. Unlike other products, it will not out-gas if damaged, making it a safe choice for use with cold-applied sealants, including CRL Vulkem 45 SSL and CRL Tremco® THC900. For optimal installation, ensure the joint is clean and clear of obstructions before using a Sof Rod that is approximately 25% larger than the joint diameter. Tools like the Cat. No. T607CU605 Backer Rod Insert Tool Set and Cat. No. SBRR Backer Rod Roller are recommended for efficient installation. This 100-foot roll in a gray finish offers an effective solution for a variety of sealing applications, making it a must-have for professionals in the field.

3/8" Sof Rod - 100 Foot Roll

• Controls Sealant Depth and Functions as an Effective Bond Breaker
• Compatible with All Cold-Applied and Hot-Pour Sealants
• Soft Material Allows for Easy Compression During Installation

CRL Sof® Rod is an advanced sealant backing material that combines the features of open and closed cell backer rods in a single, high-performance product. This dual celled product will not out-gas when the skin is ruptured and prevent sealant bubbling and failure. It consists of a continuous length of extruded polyolefin foam with a non-absorbent outer skin and a resilient internal structure of both open and closed cells. CRL Sof® Rod is chemically inert and compatible with virtually all known cold-applied sealants, including self-leveling types.

CRL Sof® Rod is available for purchase in the following diameters – 3/8" to 2" (10 to 51 mm).

• New Joints: Clean thoroughly to remove form-release agents, curing compounds, or debris. Ensure the joint is clean and dry before applying sealant.
• Repairing Old Joints: Remove all old sealant or filler. Use wire brushing and air blasting for effective cleaning. If using an air compressor, ensure it has moisture and oil traps.

1. Prepare the surface by following the Joint Preparation directions.
2. Measure and Select: Choose the correct backer rod size based on the joint width.
3. Set Depth: Install the backer rod at the depth recommended by the sealant manufacturer, ensuring the sealant forms an "hourglass" shape.
4. Use the Right Tools: Install with a blunt tool or roller. The Cat. No. T607CU605 or Cat. No. SBRR for smooth installation.

Resources

• Safety Data Sheets SR38C.pdf
• Specifications sofrod.pdf