Microlite® FSK Formaldehyde-free™ duct wrap insulation is a lightweight, highly resilient, blanket-type thermal insulation. The insulation blanket is manufactured from rotary-process fiberglass bonded with a formaldehyde-free resin.
FEATURES & BENEFITS
• Microlite Formaldehyde-free™ insulation is available in a variety of densities, thicknesses and roll lengths. It is supplied with an FSK (foil-scrim-kraft) vapor barrier facing to meet installed performance requirements, with a 2" (51 mm) stapling tab. Microlite FSK is 48” (1219mm) wide. • Microlite insulation is recommended as thermal insulation for the exterior of HVAC systems or other spaces or surfaces where temperature control is required. • Microlite FSK duct wrap is not recommended for use on duct systems in service at temperatures above 250°F (121°C). It should not be used in weather-exposed applications without proper protection. • Microlite FSK duct wrap should be kept clean and dry during storage, transport, installation, and system operation. • FSK Aluminum Foil Reinforced with fiber glass scrim laminated to UL-rated kraft. • Permeance: 0.02 perms (Per ASTM E96, Procedure A for facing material prior to lamination. After lamination, permeance values may be higher) • Temperature (max.): ASTM C411 250°F (121°C) • Water vapor sorption: ASTM C1104 <5% by weight • Corrosivity with steel: ASTM C665 Does not accelerate • Fungi resistance: ASTM C1338 Does not breed or promote • Type 75 • Maximum Flame Spread Index 25 • Maximum Smoke Developed Index 50
