Nitric Acid: chemical resistance of ASP floors
How each ASP epoxy and polyurethane flooring product performed when fully immersed in nitric acid, from ASP's chemical resistance guides (December 2022).
Summary1% at 20°C: excellent for ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU.
3% at 20°C: excellent for ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU; not resistant: ASP-coatWBE.
5% at 20°C: excellent for ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU; not resistant: ASP-coatWBE.
10% at 20°C: excellent for ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU; not resistant: ASP-coatWBE.
30% at 20°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.
69% at 20°C: no product rated excellent; not resistant: ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-coatWBE, ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU.
| Product | 1% at 20°C | 3% at 20°C | 5% at 20°C | 10% at 20°C | 30% at 20°C | 69% 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 nitric acid
Which ASP floors resist nitric acid (1% 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, ASP-creteVS and ASP-coatPU.
Which ASP floors resist nitric acid (3% 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, ASP-creteVS and ASP-coatPU. Not resistant (0): ASP-coatWBE.
Which ASP floors resist nitric acid (5% at 20°C)?
Rated 5 (excellent, no significant deterioration after long-term contact): ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU. Not resistant (0): ASP-coatWBE.
Which ASP floors resist nitric acid (10% at 20°C)?
Rated 5 (excellent, no significant deterioration after long-term contact): ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU. Not resistant (0): ASP-coatWBE.
Which ASP floors resist nitric acid (30% 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-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-coatWBE and ASP-coatPU.
Which ASP floors resist nitric acid (69% at 20°C)?
Not resistant (0): ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB, ASP-coatWBE, ASP-creteSL, ASP-creteMD, ASP-creteRT, ASP-creteVS and ASP-coatPU.
Is epoxy flooring resistant to nitric acid?
Some ASP epoxy systems are rated excellent for nitric acid at 1% at 20°C or 3% at 20°C. Check the exact concentration and temperature in the table, as ratings change with both.
Is polyurethane flooring resistant to nitric acid?
Some ASP polyurethane systems are rated excellent for nitric acid at 1% at 20°C, 3% at 20°C, 5% at 20°C, 10% at 20°C or 30% at 20°C.