Key Players
Competitive Landscape
Contractors choose a system house on yield per set, spray behaviour in cold weather, code approvals and technical support on site, and a switch usually follows a trial on one job. Carlisle sells SealTite PRO HYX on yield and a Class II vapour retarder at one and a half inches.[2] Huntsman sells Heatlok systems with local approvals in each country.[4]
Chemical groups compete on MDI supply and system chemistry, and building products groups compete on brand and distribution to contractors. The limits of capacity-led expansion are clear in 2026, as weak housing leaves foam lines with spare output. Makers are competing for commercial jobs with existing plants. Polyol is the B-side input of every foam set, and a 3.6% CAGR, slower than spray foam, is expected for the polyols market.
Company developments mapped to drivers, trends and opportunities (2026-2036)
| Development | Driver | Trend | Opportunity |
|---|---|---|---|
| June 2026: Olin and Huntsman agree to merge. | Scale in isocyanate supply. | Consolidation of chemical makers. | Integrated foam system supply. |
| September 2026: Carlisle launches SealTite PRO HYX. | Contractor cost per job. | Higher-yield closed-cell systems. | Commercial roof and wall bids. |
| October 2026: Huntsman Heatlok systems gain Australian Made certification. | Local supply and approvals. | Fire-rated foam systems. | Commercial specifications in Australia. |
Source: Future Market Insights, Spray Foam Insulation Market Report, 2026-2036.
Spray foam competes with boards, wool and other foams for the same building envelope, all grouped in the foam insulation market. Contractors with documented installation logs will keep jobs that lenders and insurers check.
Who leads the spray foam insulation market?
Huntsman leads on documented foam system activity, with Heatlok systems and a merger agreement with Olin in 2026.[5][4] Carlisle follows with dated product launches.[2]
Which companies have documented positions?
Huntsman documents Polyurethanes results and MDI price trends.[1] Carlisle documents closed-cell product specifications.[2] Installed Building Products documents installer volumes by end market.[3]
What should buyers evaluate before approving a supplier?
Contractors check yield per set, cure in cold weather, fire test approvals, vapour retarder ratings and technical support. Building owners also ask for installer training certificates and warranties.
How is competition expected to change through 2036?
Chemical supply will consolidate, and system houses will compete on yield, fire approvals and lower-carbon chemistry. Installer quality will matter more as lenders and insurers check foam in homes.
Representative Company Overview
| Company | Positioning | Recent development |
|---|---|---|
| Huntsman | Polyurethane chemical maker with Heatlok spray foam systems | June 2026: merger agreement with Olin. |
| Carlisle | Building products group with SealTite spray foams | September 2026: SealTite PRO HYX launch. |
| Installed Building Products | Insulation installer across residential and commercial jobs | August 2026: Q2 commercial sales up 14.1%. |
Research Methodology
The companies included in the report represent current market structure and do not indicate a market-share ranking. Chemical, installer and product facts here come from company releases, merger announcements and spray foam trade press published from May 2025 onward.
