- Concrete Slabs, Balconies & Toilets.
1. Clean & Degrease
- Remove all contaminants (dust, oil, grease, waxes, mold) from the surface.
- Use wire brushing, pressure washing, or solvent degreasers to thoroughly clean.
- Repeat cleaning if necessary, flushing with clean water to remove residues, then allow surfaces to fully dry before coating.
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2. Remove Weak Material / Laitance
- Concrete or masonry surfaces may have laitance—a weak, powdery layer—removing it is crucial for good adhesion.
- Use abrasive blasting (preferred) or acid etching (vertical/horizontal surfaces only, with caution) to open the pores of the substrate.
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3. Mechanical Profiling
- For hard or smooth surfaces (like cured concrete, epoxy, or tiles), light grinding, shot-blasting, or abrasive finishing provides a texture that improves coating grip.
4. Repair & Patch
- Inspect the substrate for cracks, holes, or spalling.
- Use compatible patching compounds or repair mortars, ensuring they are fully cured and dry before proceeding.
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5. Final Clean & Dry
- After profiling and repairs, clean again to remove dust and debris.
- Verify the surface is completely dry, as moisture impairs the penetration and elasticity of Nano-based coatings.
6. Optional Primer or Test Coat
- Nano shield coatings often penetrate directly, so primers may not usually be required—check the TDS.
- For highly porous or variable substrates, consider a light primer or diluted first coat to even out absorption.
7. Test Patch
- Always conduct a small test area to validate adhesion, appearance, and coverage before full-scale application.