Product Description

BACKER ROD F/GAPS & JOINTS 3/8″X20′

• Poly Foam Caulk Saver acts as a filler in large gaps before applying caulk. Insulates and cushions. Use in pavement cracks, wall joints, and foundations.
• Fills large gaps and openings to prevent drafts
• Twist multiple strands of cord together for extra large gaps; easily trimmed to size with scissors