Chemical Resistance
The ability of a coating or lining to withstand attack by a specific chemical at a stated concentration and temperature without softening, swelling or breaking down.
On an actual building
It is chemical-specific, not general. A lining excellent against one acid may fail against a mild solvent, which is why the datasheet of what is actually stored governs the specification.
What we most often have to correct
That 'chemical resistant' on a datasheet is a specification. Without the chemical, its concentration and temperature, it means very little.
Terms that come up alongside this one
- FRP Lining
Fibre-reinforced plastic lining, built up from glass fibre reinforcement saturated with resin and cured into a hard, seamless, chemically resistant shell..
- Epoxy
A two-part thermosetting resin that cures rigid, with high strength, excellent adhesion to dry concrete and good chemical resistance..
- Holiday / Spark Testing
A test that passes an electrical charge over a coated surface to locate pinholes, voids and discontinuities — 'holidays' — that are invisible to the eye..
Chemical Resistance — questions we get asked
What does chemical resistance mean in waterproofing?
The ability of a coating or lining to withstand attack by a specific chemical at a stated concentration and temperature without softening, swelling or breaking down.
Why does chemical resistance matter on a real project?
It is chemical-specific, not general. A lining excellent against one acid may fail against a mild solvent, which is why the datasheet of what is actually stored governs the specification.
What do people commonly get wrong about chemical resistance?
That 'chemical resistant' on a datasheet is a specification. Without the chemical, its concentration and temperature, it means very little.
Have a building showing this?
If a term on this page describes something you are looking at, a site inspection will tell you how far it has gone and what it needs. It costs nothing.
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