Recognized as a fireblock, GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant air seals the building envelope, helping improve energy efficiency and moisture management.

GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant is a minimal-expanding, single component polyurethane foam sealant for general purpose building envelope air sealing. As the first foam sealant to be recognized as a fireblock, GREAT STUFF PRO™ Gaps & Cracks resists the free passage of flames to other areas of the building through concealed spaces. Identifiable orange color.

Designed to fill gaps up to 3" (75 mm), GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant expands to take the shape of cracks and voids, forming a permanent, airtight and water-resistant bond to vinyl, wood and metal surfaces.(1) Once cured, it remains soft and flexible, permitting natural expansion and contraction of surrounding surfaces. GREAT STUFF PRO™ Gaps & Cracks helps prevent drafts and repel water, helping enhance energy efficiency and improve occupant comfort.

Simplify foam application with PRO Series foam dispensing guns (PRO 13, PRO 14 and PRO 15). Use GREAT STUFF PRO™ Gun Cleaner to simplify cleanup of uncured polyurethane foam from dispensing guns and work areas.

(1) For cavities, cracks and penetrations larger than 3" (75 mm), Dow recommends FROTH-PAK™ Foam Sealant (US and Canada) or FROTH-PAK™ Foam Insulation (US only). For window and door framework, minimal-expanding GREAT STUFF PRO™ Window & Door Insulating Foam Sealant is proven not to distort or bow the framework, when properly applied.

Building Code Compliance

ICC-ES Legacy NER-645. ASTM E331, ASTM E547, ASTM C1620 and complies with AAMA 812-04 and ABAA standards for air leakage per ASTM E283. UL Classified as a sealant. See CCMC 13074-R.

Related Information

GREAT STUFF PRO™ Installation and Safe Handling Training Videos
Crack Down on Energy Loss with GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant (326KB PDF)
GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant Product Information (191KB PDF)
PROfessionally Sealed With GREAT STUFF PRO™ Products (Family Brochure) (150KB PDF)
Foamed-In-Place Air Barriers – Guide Specification (18KB PDF)
Installation Recommendations for GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant (281KB PDF)
Tech Solutions 107.0 PRO Series Foam Dispensing Gun Care Tips (219KB PDF)
Tech Solutions 107.0 PRO Series Foam Dispensing Gun Care Tips (Canada) (219KB PDF)

Sizes and Estimated Yields for GREAT STUFF PRO™ Gaps & Cracks Insulating Foam Sealant
Can Size, oz (g) Delivery Yield, linear feet (m)(1)
24 (680) Reusable Straw 775 (236)
24 (680) Gun 970 (296)
30 (850) Reusable Straw 965 (294)
30 (850) Gun 1,450 (442)

(1) Estimated yield under ideal conditions, 3/8" (10 mm) bead.

07 93 30 Urethane Sealants

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