Anti-Carbonation Coating
A coating with high resistance to carbon dioxide diffusion, applied to concrete to slow the advance of the carbonation front while still allowing water vapour out.
On an actual building
After a concrete repair it is what stops the mechanism resuming. A repair without it addresses the damage and leaves the cause running.
What we most often have to correct
That ordinary exterior paint does the same. Carbon dioxide diffusion resistance is a specific measured property.
Terms that come up alongside this one
- Carbonation
The slow reaction of atmospheric carbon dioxide with the alkaline compounds in concrete, which lowers its pH.
- Breathability (Vapour Permeability)
The ability of a material to let water vapour pass through it while still resisting liquid water..
- Elastomeric Coating
A high-build flexible coating with substantial elongation, able to stretch and bridge hairline cracks as a substrate moves..
Anti-Carbonation Coating — questions we get asked
What does anti-carbonation coating mean in waterproofing?
A coating with high resistance to carbon dioxide diffusion, applied to concrete to slow the advance of the carbonation front while still allowing water vapour out.
Why does anti-carbonation coating matter on a real project?
After a concrete repair it is what stops the mechanism resuming. A repair without it addresses the damage and leaves the cause running.
What do people commonly get wrong about anti-carbonation coating?
That ordinary exterior paint does the same. Carbon dioxide diffusion resistance is a specific measured property.
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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