African Specialist Polymers

Perchloric Acid: chemical resistance of ASP floors

How each ASP epoxy and polyurethane flooring product performed when fully immersed in perchloric acid, from ASP's chemical resistance guides (December 2022).

Summary30% at 20°C: no product rated excellent; not resistant: ASP-coatWBE.

5Excellent: no significant deterioration after long-term contact3Medium term: unaffected after 1 month1Short term: unaffected after 24 hours0Not resistant
Product30% at 20°C
Epoxy products
ASP-primeStd3
ASP-primeDamp3
ASP-coat5003
ASP-coat10003
ASP-coatSL3
ASP-screedHTS3
ASP-screedPTS3
ASP-screedSTB3
ASP-repair–
ASP-epoxyCove–
ASP-epoxyGrout–
ASP-coatWBE0
Polyurethane products
ASP-creteSL4
ASP-creteMD4
ASP-creteRT4
ASP-creteVS4
ASP-creteCoat4
ASP-uvCoat3
ASP-coatPU3
ASP-trafficID3

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 perchloric acid

Which ASP floors resist perchloric acid (30% at 20°C)?

Not resistant (0): ASP-coatWBE.

Is epoxy flooring resistant to perchloric acid?

ASP's epoxy products are not rated excellent for perchloric acid at the tested conditions. Check the table for shorter-term ratings, or consider the polyurethane or vinyl ester ranges.

Is polyurethane flooring resistant to perchloric acid?

ASP's polyurethane products are not rated excellent for perchloric acid at the tested conditions. Check the table for shorter-term ratings, or ask about vinyl ester systems.