Nomaco SOF Rod 5/8 in. Foam Backer Rod Handy Pack

The Nomaco SOF Rod Handy Pack is a soft bi-cellular polyethylene foam backer rod, 5/8 in. diameter, sized for smaller concrete construction and building envelope joints. Its open and closed cells will not out-gas when the skin is ruptured, preventing sealant bubbling and failure. Sold by the carton and used with cold-applied sealants.

Key Features:

• No out-gassing: The bi-cellular structure will not out-gas when the skin is ruptured, preventing sealant bubbling and failure.
• Handy pack size: Handy pack format suits smaller jobs and touch-up sealant work.
• Water resistant: Water-resistant polyethylene foam holds up in exterior joints.
• Recyclable: The product is recyclable.
• Clean and inert: Non-exuding, inert and clean for easy handling on site.

Specifications Table:

Coverage & How Much You Need:

Select a rod diameter about 25% larger than the joint width so it compresses and stays seated. Measure total joint linear feet to size the order; carton length is not stated in the sources.

Fit and Compatibility:

Intended for use with cold-applied sealants in concrete construction and building envelope joints; no bond breaker needed. Sealant is sold separately.

Frequently Asked Questions (FAQ):

Q: What is included?
A: One carton of the SOF Rod Handy Pack in 5/8 in. diameter.

Q: What diameter should I buy?
A: Choose a rod roughly 25% larger than joint width; this pack is 5/8 in.

Q: Why choose SOF Rod over open-cell rod?
A: Its bi-cellular structure will not out-gas when the skin ruptures, preventing sealant bubbling.

Q: Does it need a bond breaker?
A: No, SOF Rod works without a bond breaker.

Q: Is it suitable for concrete joints?
A: Yes, it is used in concrete construction as well as building envelope work.

Expert Verdict Reviewed by the SuperArbor Pro Desk

The 5/8 in. Handy Pack is a good fit for control joints, saw cuts and smaller envelope details. Seat the rod at a uniform depth so the sealant develops the proper hourglass profile, and never stretch it around corners. Step up to a larger diameter on wider joints to keep compression in the right range.

Use gloves and follow the sealant manufacturer’s safety guidance when preparing and filling joints.

Grab the Nomaco SOF Rod 5/8 in. Handy Pack for clean, bubble-free sealant joints on smaller jobs.