The following products can be used when sealing PEX tubing and slab-penetration protection devices:
Latex caulk
Latex foam
Silicone sealant
Polyurethane expanding foam
The misapplication of these products could result in pooling or puddling of the products around the PEX tubing, a practice that is prohibited.
PEX Tubing for radiant heat can be found at www.supplyhouse.com
