Description
The Huntsman Heatlok HFO Pro Closed-Cell Set is a complete Huntsman Building Solutions Heatlok HFO Pro closed-cell spray foam system: the A-Side (Huntsman ISO) and the B-Side (Heatlok HFO Pro resin), matched and sold together. It is an HFO-blown closed-cell foam with a high R-value per inch that insulates and works as an air barrier, vapor retarder and water-resistive barrier, above and below grade, interior and exterior. Full specs for each side are in the A-Side and B-Side tabs.
What’s included
- A-Side Huntsman ISO – 520 (SKU 59579)
- B-Side Heatlok HFO Pro resin (SKU 59357)
Processing
- Mix ratio 1:1 by volume (A:B)
- Spray pressure 1,200 to 1,400 psi
- Primary heat A-Side 92 to 106°F, B-Side 98 to 115°F
- Hose heat 102 to 115°F
- Substrate and ambient above 50°F summer grade, above 15°F winter grade
- Pass thickness up to 3″ in a single pass, or 2″ + 2″ dual pass
Safety data
Review both safety data sheets before handling. The A-Side contains MDI isocyanate and can cause respiratory and skin sensitization: use a supplied-air respirator when spraying, chemical goggles, chemical-resistant gloves and full skin coverage. Foam must be separated from the interior by an approved thermal barrier.
Ordering and support
Questions about rig setup or coverage? Contact us and our team will help you dial in your system before you order. The Spray Market supplies spray foam contractors with equipment, replacement parts, chemicals and safety gear.








Reviews
There are no reviews yet.