SOFPLATE Self-Adhesive Foam Sheets vs K-Flex Elastomeric Insulation Sheet

Buy the SOFPLATE foam sheets for small craft, cushioning and light DIY jobs where you want thin, easy-to-cut pieces. Buy the K-FLEX USA sheet for real insulation work on ducts, tanks and pipes. The SOFPLATE is 2mm craft foam with adhesive backing, not an insulation product with a rated R value. The K-FLEX is a 3/4-inch closed-cell elastomeric sheet with R-3, a plenum rating and a flame spread index of 25, so it meets code-minded duct work. Owners of thin craft foam praise the easy peel-and-stick but note it compresses and tears; K-FLEX users value the flexibility and cold-weather range down to -40°F.

• Choose the SOFPLATE if you need thin, cheap-to-cut adhesive foam for crafts, drawer liners, packaging or light sound damping.
• Choose the K-FLEX USA if you are insulating ducts, tanks or vessels and need a rated R value, closed cells and plenum-rated material.