Description
Mapei’s Planiprep SC is a polymer-modified, fibre-reinforced cement-based skimcoating and patching compound for smoothing minor surface variations and defects on common substrates ahead of a floor covering. The fibre reinforcement gives the finished skim more resistance to cracking than a plain patching compound, which matters on the kind of minor imperfection this product is aimed at — not a structural repair, but the small dips and high spots that stop a floor covering sitting flat.
Its rapid-setting formula is the standout feature: fast-track flooring installation is possible just 30 to 60 minutes after application, depending on the thickness applied and the conditions on site, which keeps a tiling or flooring job moving without an overnight wait for a skim coat to cure.
Technical Specifications
| Product type | Polymer-modified, fibre-reinforced cement-based skimcoating and patching compound |
|---|---|
| Mixing | Mixes easily with water |
| Ready for flooring installation | 30-60 minutes after application, depending on thickness and conditions |
| Packaging | 4.5kg tub |
Where to Use
- Skimcoating minor surface variations and defects before flooring installation
- Patching common substrates ahead of tile, resilient or other floor coverings
- Fast-track jobs where a long cure time before flooring isn’t practical
- Thin feather-edge sections that need crack resistance a plain patching compound can’t offer
How to Apply
- Check the substrate — it must be a common, sound substrate with only minor surface defects; not a structural repair product.
- Mix with water — combine to an easy-to-apply, workable consistency.
- Apply and smooth — skimcoat over the defects to create a level, durable surface.
- Allow to set — fast-track flooring installation is possible 30 to 60 minutes after application, though actual timing depends on thickness applied and site conditions.
The fibre reinforcement is what separates Planiprep SC from a plain skim coat: a cement-only patching compound is more prone to fine cracking as it dries, especially over a thin feather-edge section, and the fibres hold that thin edge together while the compound cures. That’s what lets the finished skim carry almost any floor application above it without the underlying patch failing first.
Important Notes
- Actual set time before flooring installation varies with the thickness applied and environmental conditions on site — treat 30-60 minutes as a guide, not a fixed figure.
- Intended for minor surface variations and defects, not as a structural patching or levelling product for larger repairs.
