Crystalline Waterproofing
A cementitious system carrying reactive chemicals that penetrate concrete and grow insoluble crystals within its capillary pores, blocking water paths inside the material.
On an actual building
Because it becomes part of the concrete it cannot delaminate or wear off, and it reactivates whenever water returns — giving genuine self-healing on fine hairline cracks.
What we most often have to correct
That it works on any surface. It needs an open, absorbent concrete surface to penetrate; on a polished or sealed slab it does nothing.
Terms that come up alongside this one
- Negative Side Waterproofing
Waterproofing applied to the dry face of a structure — the inside of a basement wall — rather than the face the water arrives from..
- Capillary Action
The movement of liquid through narrow spaces against gravity, driven by surface tension.
- Integral Waterproofing Compound
An admixture dosed into the concrete or mortar mix by weight against cement content, reducing the permeability of the hardened material..
Crystalline Waterproofing — questions we get asked
What does crystalline waterproofing mean in waterproofing?
A cementitious system carrying reactive chemicals that penetrate concrete and grow insoluble crystals within its capillary pores, blocking water paths inside the material.
Why does crystalline waterproofing matter on a real project?
Because it becomes part of the concrete it cannot delaminate or wear off, and it reactivates whenever water returns — giving genuine self-healing on fine hairline cracks.
What do people commonly get wrong about crystalline waterproofing?
That it works on any surface. It needs an open, absorbent concrete surface to penetrate; on a polished or sealed slab it does nothing.
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