1" Kool-Rod Backer Foam For Deck-O-Seal Installation | 1 Foot | 4651000

Kool-Rod 4651000 is a 1-inch closed-cell polyethylene foam backer rod manufactured by W. R. Meadows, specifically designed for use with Deck-O-Seal and other cold-applied pool deck joint sealants. Sold per lineal foot, it installs quickly into pool coping-to-deck expansion joints and cantilever decking joints to control sealant depth, establish the correct 2:1 width-to-depth joint ratio, and prevent sealant from over-filling or sinking into the joint cavity. The closed-cell foam structure is virtually non-absorbent and chemically inert to most solvents, ensuring it will not absorb moisture, trap air, or bond to the sealant applied above it — eliminating the risk of three-sided adhesion failure that compromises long-term joint performance. Kool-Rod is fully compatible with acrylic, butyl, polyurethane, polysulfide, silicone, and most other cold-applied sealant compounds, and can be cut to length or compressed into place with a blunt instrument or roller with no special tools required.

Highlights

• Controls Sealant Depth for Proper Joint Design: Installed below the sealant layer, Kool-Rod establishes the correct 2:1 width-to-depth joint ratio recommended for Deck-O-Seal and all cold-applied pool deck sealants — ensuring a properly configured joint that performs and seals as intended over the long term.
• Closed-Cell Foam — Non-Absorbent & Air-Tight: The closed-cell polyethylene structure is virtually non-absorbent and prevents air or moisture from becoming trapped between the backer rod and the sealant above, eliminating a common cause of joint seal failure in pool deck and coping applications.
• Non-Bonding to Sealant — Eliminates Three-Sided Adhesion Failure: Kool-Rod will not adhere to any cold-applied sealant compound, ensuring the sealant bonds only to the two joint faces rather than the backer rod below — the correct two-sided adhesion configuration that allows the joint to flex and move without cracking or delaminating.
• Compatible with All Major Cold-Applied Sealants: Fully compatible with acrylic, butyl, polyurethane, polysulfide, silicone, and most other cold-applied sealant compounds — including the full Deck-O-Seal product line — making it a universally reliable backer rod for pool deck, coping, and expansion joint applications.
• Easy Installation — No Special Tools Required: Lightweight, flexible, and easily compressible, Kool-Rod installs quickly into horizontal and vertical joints using a blunt instrument or roller, can be cut to any length with a utility knife, and stays firmly in place once set for immediate sealant application.