Backer Rod
For Chinking Joints greater than 1/4", a round, flexible length of extruded polyethylene backer rod (it looks like a rope made of foam) is used to create a surface backing for the chinking. At the same time, it insulates and saves on the amount of chinking material used. But most important, it acts as a bond breaker allowing the chinking to adhere only to the top and bottom of the logs, not to the backer rod. This allows the chinking to flex naturally as the logs shrink, instead of peeling away.

Notes: Spray adhesives may be needed when installing Tri-Rod and Closed Cell.
Subject to UPS oversize charges based on size, not weight.
Grip Strip, Tri-Rod, and 6' lengths and cases of Closed Cell and Dual Rod are subject to UPS oversize charges based on size, not weight.


 FYI Backer Rod and Chinking Part 1 and 2
 Commonly Asked Questions Chinking, Caulking, and Sealants
Closed Cell Will not hold, but actually repels moisture. In some cases, it will give a little higher insulation value. Closed Cell provides a firm finished joint because it is a stiff material. Has a wide assortment of sizes 1/4" to 4" in diameter. Works well for caulking jobs that requiresSubject to UPS oversize charges based on size, not weight. a smaller backer rod, such as 1/4" to 3/8". In some uses this product will need to be attached in place, using spray adhesives.

Tri-Rod profile

Tri-Rod A triangular shaped, closed cell backer rod. Available in 6' lengths. Repels moisture.

Subject to UPS oversize charges based on size, not weight.



Spray Adhesive

Fast Tack 87 A high performance mist adhesive used for temporary and permanent bonding. Its quick, initial tack and high solids make it perfect for many foams. Non-staining formulaGround Only makes it suitable for many applications. This product contains no chlorinated solvents. 13 oz. can T077-FASTTACK87 $8.60

Touch 'n Seal Foam Sealant™
Polyurethane expanding foam sealant provides airtight insulation, fits into hard-to-reach openings, reduces heating and cooling costs. 24 oz. can - 2,400 linear feet of 1/4" diameter bead.
12 oz. High Yield FM038-4524612 $8.90
24 oz. High Yield FM038-4524624 $13.40

This product is also available for foam guns to eliminate loss of material and for easier application.

High Yield Gun Foam in 24 oz.
T077-63802 $18.35

Economy D Model Foam Gun
T038-4004510605 $30.25

Touch N Pro Premium Gun (previously known as the Sharpshooter X Foam Gun) contractor model.
T077-590609 $56.46

Poly-Clean 12 oz. can for cleaning foam guns.
T077-GUNCLEAN12 $12.07
Open Cell Easy to install (softer, more pliable than closed cell). Will compress more to fit a wider range of joint sizes and allows for faster cure of caulk and chinking. Recommended for indoor applications only. Will not cause outgassing, which can cause blisters; if the caulking or chinking sealant is punctured, closed cell can absorb moister.



SOF® ROD (was Dual Rod) A soft, flexible, compressible (like open cell, yet has been extruded to repel moisture), and non-gassing rod. Easy to fit in various size joints because of compressibility. Used in expansion and contraction joints to control sealant application. (ManySubject to UPS oversize charges based on size, not weight. builders of the Swedish cope style use it as an internal seal.) Manufactured to exceed 1990 Clean Air Act requirements.




Grip Strip profileGrip Strip A closed cell trapezoid shaped product which, under normal use will not cause blisters in chinking material. Unique design provides excellent fit with a flat surface within chink joint, resulting in saving on chinking. Can be used on exterior or interior surfaces. Subject to UPS oversize charges based on size, not weight.Comes in 4' lengths. Repels moisture.
To Place an Order: Call Toll Free
1-800-359-6614
Prices subject to change without prior notice.