Touch ‘n Seal Quick Cure High Yield Foam 16Lb Cylinder – use when high expansion is needed to fill and seal larger gaps and cracks. 16 lb. yeilds 24,000 linear feet of ¼” bead. Touch ‘n Seal Quick Cure foams are high performance, single component, moisture curing, Class 1 fire retardant, expanding polyurethane sealants. Use Quick Cure Polyurethane Foam Sealants to permanently air seal and insulate gaps and cracks to block drafts, moisture and insects while improving comfort and reducing energy usage in commercial, industrial, agricultural and residential applications. Common applications include sealing around plumbing, ventilation outlets, electrical junctions, between sill plates and concrete slabs, or anywhere requiring a fast, economical air-sealing moisture barrier.