Armacell AP Self-Adhesive Sheet Insulation vs LK Lab Self-Adhesive Foam Sheets

Buy the Armacell sheet when you are insulating a wall, duct, pipe or large flat surface: it is a 3 ft x 4 ft self-adhesive elastomeric sheet with an R-value of 4.2, a 25/50 flame and smoke rating, and a service range from about -297°F to 220°F. Buy the LK Lab pads when you need small, thick, closed-cell neoprene pieces for vibration damping, anti-slip feet or craft work. The Armacell is the engineered insulation product; the LK Lab is a general-purpose foam pad. Owners of similar Armacell sheets praise the strong adhesive and clean cuts, while buyers of neoprene pads like the density but note the small size and that the adhesive backing is modest.

• Choose the Armacell AP sheet if you are insulating a wall, duct, tank or pipe run and need a rated R-value, a flame and smoke rating and a large continuous sheet.
• Choose the LK Lab foam pads if you need small, thick, closed-cell neoprene pieces to stop vibration, noise or slipping under furniture, appliances or craft projects.