DuPont Froth-Pak 650 FR A-Side Spray Foam Insulation Kit (Part A Isocyanate) – 650 sq ft Coverage

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Froth-Pak 650 FR A-Side Spray Foam Insulation (Part A)

DuPont Froth-Pak™ 650 FR is a Class A fire-rated, two-component, quick-cure polyurethane spray foam system designed to seal and insulate cavities, cracks, and penetrations. It dispenses and expands fast, becoming tack-free in about 30 seconds, helping reduce air leakage and improve energy efficiency on professional jobs.


Key Features:

  • Class A Fire-Rated Foam: Formulated for fire-rated applications and approved testing conditions for certain exposed uses.
  • Fast Cure Performance: Expands quickly and becomes tack-free in ~30 seconds to keep work moving.
  • High Insulating Value: Delivers R-6.7 initial (R-6.2 aged) to help reduce heat loss and drafts.
  • Broad Substrate Adhesion: Bonds to common building materials including wood, masonry, metal, rigid foam, and drywall.
  • Portable, Self-Contained System: No additional gas cylinder or electricity required; designed for consistent on-ratio dispensing with ergonomic applicator/nozzle system.

Specifications Table:

Specification Details
Product name DUPONT™ Froth-Pak™ 12031896 Spray Foam Insulation Kit, A-Side
Series/Model Froth-Pak™ 650 FR
Side / Component A-Side (Part A Isocyanate)
Foam type Two-component, quick-cure polyurethane spray foam
Fire rating Class A fire rated
Coverage area 650 sq-ft
R-value (initial) R-6.7
R-value (aged) R-6.2
Tack-free time 30 s
Color Colorless
Density 1.75 sq-ft/lb
Reusable time window Reusable for 30 days
Application thickness (recommended for full coverage) Up to 2 in thick
Gap/penetration capability Expands quickly to fill larger gaps and penetrations greater than 2 in
Substrate compatibility Bonds to wood, rigid foam, masonry, metal, drywall and more
Dispensing system features Anti-crossover nozzle and ergonomic dispensing system to help ensure consistent flow rate and on-ratio application
Sustainability/Blowing agent statement Contains no ozone-depleting chemicals or HFCs; blowing agent GWP reduction of more than 99% (as stated)
Certifications/Compliance (as listed) GreenCircle® Certified; LEED v4 compliant; ICC listed; Energy Star certified
Occupant re-entry guidance (as listed) One-hour occupant re-entry with proper ventilation after dispensing
Exposed-use note (as listed) Can be left exposed in commercial building roof/wall junctures at max 2 in thick x 6 in wide x unlimited length per NFPA 286 approval testing
Chemical composition (as listed) Diphenyl methane diisocyanate (isomers and homologues); 4,4'-methylene diphenyl diisocyanate; trans-1-chloro-3,3,3-trifluoropropene; carbon dioxide; nitrogen

Frequently Asked Questions (FAQ):

Q: What is this product used for?
A: It’s used to fill and seal cavities, penetrations, and cracks in areas like rim joists, roof/wall junctures, and around pipes/ducts to reduce air infiltration and add insulation.


Q: How much area does it cover?
A: The listed coverage area is up to 650 sq ft (application-dependent).


Q: How quickly does it cure?
A: It becomes tack-free in about 30 seconds and is designed to significantly reduce curing time compared with slower foams.


Q: Does it require electricity or a separate gas cylinder?
A: No—it's described as a self-contained, portable kit that does not require additional gas cylinders or electricity.


Q: What thickness can be applied?
A: For full coverage, apply up to 2 inches thick (per the listed guidance).


A Seamless Envelope, Quietly Luxurious

Think of this spray foam as the invisible couture of a home—tailoring every crack and junction into a tighter, calmer, more efficient space. The quick-cure, expanding application creates a beautifully continuous seal that elevates comfort without adding visual clutter. Use it strategically where architecture meets mechanics—rim joists, roof-wall transitions, and penetrations—so the performance feels effortless. It’s the kind of behind-the-walls upgrade that makes a space feel truly considered—and undeniably livable.


Seal leaks fast and boost comfort—choose DuPont Froth-Pak™ 650 FR A-Side for quick, fire-rated spray foam insulation performance.

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Subject to Approval & Availability
All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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