Fiberlock IAQ 8500 HVAC Insulation Coating Black 5gal Base UOM:18.9LTR That is a judgement call

That is a judgement call for the technician on site

and biofilm regrowth for up to 12 months

and tougher stains like ink

AR51E - 14 Gekko Squeegee Head

Fiberlock IAQ 8500 HVAC Insulation Coating Black 5gal Base UOM:18.9LTR That is a judgement callFiberlock IAQ 8500 HVAC INSULATION SEALER BLACK Fiberlock IAQ 8500 is trusted for use in duct work, to bridge and reinforce duct liner or duct board insulation materials, and to seal unlined duct work prior to component removal, preventing fiberglass and inanimate particulate from becoming airborne. IAQ 8500 forms a durable, flexible, moisture resistant protective coating with a semi gloss finish that minimizes dust buildup on the coating surface. The