Raising the Bar on OCX Spray Foam

Spray Foam Magazine – Show 2026 – Open-cell “OCX” spray foams changed the way contractors insulate attics and crawlspaces. By meeting the AC377 Appendix X fire test, they allow installers to skip a separate ignition barrier in many unoccupied spaces; saving time, simplifying assemblies, and lowering installation costs.

However, while OCX products have become more common over the past decade, most contractors know the trade-offs that come with them. Many of the current OCX foams share the same profile: 0.5 lb/ft³ open-cell, water-blown, residential/light-commercial yet they also come with a familiar list of frustrations:

Sucrose “sugar” chemistry that can crystallize
Clogged proportioners, hoses, and guns
Narrow processing windows that react to even small temperature shifts
Unpredictable foam quality from morning to afternoon

You hear it on job sites across the country: “OCX works in theory, but it’s a pain to spray.”

The market has needed something better; an OCX foam engineered for contractor reality, not just lab performance.

A New Chapter for OCX: Moving Beyond Sucrose Chemistry

Elastochem has spent nearly four decades developing spray foam systems with one goal in mind—make life easier for the sprayer. From the first ultra-low-GWP closed-cell foam to our vapour permeable and structural polyurethane systems, we build chemistry around performance, reliability, and contractor experience.

So when contractors asked for an OCX product that delivered the code benefits without the day-to-day hassles of sucrose-based formulas, we took it seriously.

The result is Insulthane® OCX Plus with X-Pass™ Technology. An OCX system built from the ground up to solve the problems that slow installers down and cut into margins.

Sucrose-Free by Design — Fewer Problems, More Predictability

OCX foams lean heavily on sucrose ingredients to achieve Appendix X performance. They help in the fire test, but in the real world they can create major issues.

That is why Elastochem formulated Insulthane OCX Plus as a completely sucrose-free product.

We use next generation technology that targets Appendix X performance without relying on the chemistry that causes clogging.

In addition, Insulthane OCX Plus features a light-gray color (Stone Gray) that provides instant visual identification on site helping inspectors, contractors, and owners verify compliance at a glance.

What this means for contractors:

No more sugar crystals gumming up proportioners and guns
Cleaner equipment and fewer unexpected shutdowns
Predictable behavior from the first pass of the morning to the last cavity of the day
Faster setup thanks to reduced heating needs
Superior sprayability with a smoother, more controllable rise and no overhead dripping
Easy identification of this code compliant foam

Built for High-Uptime, No-Clog Processing

Every hour a rig is down is money lost. Many OCX foams are notorious for needing constant filter checks, ratio tweaks, and mid-job gun teardowns, especially during long, hot spray days.

Insulthane OCX Plus with X-Pass™ Technology is engineered for maximum uptime:

Stable viscosity across a wide processing temperature range
Low-residue, non-sucrose formula that protects pumps, hoses, and proportioners
Consistent mixing and atomization across common gun platforms

In the field, that means less time at the workbench and more time pulling the trigger. For contractors managing multiple crews, projects, and deadlines, reliability is everything. This foam is designed to stay out of your way and let you do your work.

Sprayability Contractors Can Feel Immediately

Specs and data sheets matter but contractors judge foam the moment it hits the substrate. We formulated Insulthane OCX Plus so crews instantly notice the difference:

Creamy, controllable rise for accurate lifts and fewer passes
Excellent cohesion and adhesion to wood, metal, and to itself
Smooth, uniform cell structure that trims cleanly and leaves a professional finish
Forgiving spray behavior, even as onsite conditions shift throughout the day

Sprayers often describe open-cell as easy to work with, but OCX foams can be finicky. Insulthane OCX Plus delivers many of the advantages of traditional open-cell without the unpredictability; finally giving contractors the consistent performance they’ve always wanted from OCX foams.

Why Insulthane OCX Plus Will Redefine the OCX Category

Insulthane OCX Plus with X-Pass™ Technology raises the bar for what an OCX foam should be:

Sucrose-free formulation that eliminates the pitfalls of sucrose-based foams
No-clog, predictable processing that keeps rigs running and crews productive
Superior sprayability that contractors feel instantly
Code-focused performance from a trusted manufacturer known for reliable, tested formulations

It’s an OCX foam designed around contractor pain points, jobsite realities, and the need for a system that performs the same on Monday morning as it does on Friday afternoon.

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