Formaldehyde: chemical resistance of ASP floors
How each ASP epoxy and polyurethane flooring product performed when fully immersed in formaldehyde, from ASP's chemical resistance guides (December 2022).
Summary40% at 20°C: excellent for ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-creteSL, ASP-creteMD, ASP-creteRT and ASP-creteVS; not resistant: ASP-coatWBE and ASP-coatPU.
100% at 20°C: excellent for ASP-creteSL, ASP-creteMD, ASP-creteRT and ASP-creteVS; not resistant: ASP-coatWBE and ASP-coatPU.
| Product | 40% at 20°C | 100% at 20°C |
|---|---|---|
| Epoxy products | ||
| ASP-primeStd | ||
| ASP-primeDamp | ||
| ASP-coat500 | ||
| ASP-coat1000 | ||
| ASP-coatSL | ||
| ASP-screedHTS | ||
| ASP-screedPTS | ||
| ASP-screedSTB | ||
| ASP-repair | – | – |
| ASP-epoxyCove | – | – |
| ASP-epoxyGrout | – | – |
| ASP-coatWBE | ||
| Polyurethane products | ||
| ASP-creteSL | ||
| ASP-creteMD | ||
| ASP-creteRT | ||
| ASP-creteVS | ||
| ASP-creteCoat | ||
| ASP-uvCoat | ||
| ASP-coatPU | ||
| ASP-trafficID | ||
Ratings come from 30 × 30 mm samples cast at each product's prescribed thickness, cured for 7 days and fully submerged at 20–25°C. On a real floor, a spill only touches the surface, so performance is usually better. Elevated temperatures accelerate chemical attack. How to read these ratings.
Questions about formaldehyde
Which ASP floors resist formaldehyde (40% at 20°C)?
Rated 5 (excellent, no significant deterioration after long-term contact): ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-creteSL, ASP-creteMD, ASP-creteRT and ASP-creteVS. Not resistant (0): ASP-coatWBE and ASP-coatPU.
Which ASP floors resist formaldehyde (100% at 20°C)?
Rated 5 (excellent, no significant deterioration after long-term contact): ASP-creteSL, ASP-creteMD, ASP-creteRT and ASP-creteVS. Not resistant (0): ASP-coatWBE and ASP-coatPU.
Is epoxy flooring resistant to formaldehyde?
Some ASP epoxy systems are rated excellent for formaldehyde at 40% at 20°C. Check the exact concentration and temperature in the table, as ratings change with both.
Is polyurethane flooring resistant to formaldehyde?
Some ASP polyurethane systems are rated excellent for formaldehyde at 40% at 20°C or 100% at 20°C.