Acetic Anhydride: chemical resistance of ASP floors
How each ASP epoxy and polyurethane flooring product performed when fully immersed in acetic anhydride, from ASP's chemical resistance guides (December 2022).
SummaryAt 20–25°C: excellent for ASP-creteSL, ASP-creteMD, ASP-creteRT and ASP-creteVS; not resistant: ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-coatWBE and ASP-coatPU.
| Product | at 20–25°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 acetic anhydride
Which ASP floors resist acetic anhydride (at 20–25°C)?
Rated 5 (excellent, no significant deterioration after long-term contact): ASP-creteSL, ASP-creteMD, ASP-creteRT and ASP-creteVS. Not resistant (0): ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-coatWBE and ASP-coatPU.
Is epoxy flooring resistant to acetic anhydride?
ASP's epoxy products are not rated excellent for acetic anhydride at the tested conditions. Check the table for shorter-term ratings, or consider the polyurethane or vinyl ester ranges.
Is polyurethane flooring resistant to acetic anhydride?
Some ASP polyurethane systems are rated excellent for acetic anhydride at at 20–25°C.