African Specialist Polymers

Pyridine: chemical resistance of ASP floors

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

SummaryAt 20–25°C: no product rated excellent; not resistant: ASP-primeStd, ASP-coat500, ASP-coat1000, ASP-coatSL, ASP-screedPTS, ASP-screedSTB and ASP-coatWBE.

5Excellent: no significant deterioration after long-term contact3Medium term: unaffected after 1 month1Short term: unaffected after 24 hours0Not resistant
Productat 20–25°C
Epoxy products
ASP-primeStd0
ASP-primeDamp0
ASP-coat5000
ASP-coat10000
ASP-coatSL0
ASP-screedHTS0
ASP-screedPTS0
ASP-screedSTB0
ASP-repair–
ASP-epoxyCove–
ASP-epoxyGrout–
ASP-coatWBE0
Polyurethane products
ASP-creteSL3
ASP-creteMD3
ASP-creteRT3
ASP-creteVS3
ASP-creteCoat3
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 pyridine

Which ASP floors resist pyridine (at 20–25°C)?

Is epoxy flooring resistant to pyridine?

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

Is polyurethane flooring resistant to pyridine?

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