KORAZA CUBIERTAS

- Clean the surface, removing any dirt, moss, mould, etc. and wash with clean, pure water.
- Shake the product until it is evenly mixed.
- Slightly dilute the product for the first layer, depending on the porosity and condition of the surface.
- Do not apply the product at temperatures below 5 °C or above 35 °C or when there is a risk of imminent rainfall. The temperature of the surface should be above 5 °C to prevent it from freezing.

On horizontal surfaces.

Cement-based mortars:
- Apply a coat of Fijamont, diluted just enough for the finish to be flat, but with the maximum possible amount of Fijamont. For all cases, we recommend applying a coat of Primer Koraza afterwards, which improves adhesion. Let dry at least 24 hours between each waterproofing coat.
- After preparation of the surface, it is recommended to apply several coats of the product at a quantity equal to or above 1.5 l/m2.

Brick, rasilla catalana tiles and asphalt felt:
- For all cases, after repairing the surface, it is recommended to apply a coat of Primer Koraza, which improves adhesion.

On façades.
- After the primer, apply a first coat diluted as necessary, and finish with as many coats as needed to leave the desired amount of product on the surface. We recommend at least 0.75  l/m2

Cement mortar:
1. Wait until it has completely set (at least 30 days).
2. Clean the base to remove any residues, loose or foreign products.
3. Remove any efflorescence using an abrasive water jet, and neutralise alkaline surfaces. Sand down highly polished surfaces to open up the pore. Fill with an elastic fibre filler.
4. Before preparing the base, make sure it is completely dry, the hygrometer humidity value should be lower than 20%.
5. Apply Fijamont to any cement mortar surfaces so that it seals it and does not come into contact with Koraza Cubiertas.
6. Anchor with Primer Impermeabilización.
7. Apply Koraza Cubiertas, using a fibreglass mesh if necessary.

Catalan tile or porous matt brick:
1. The same applies as with cement mortar, without the need to apply Fijamont.
2. In all cases, treat mouldy bases with fungicide.

Polyurethane foam and asphalt shingles:
1. Check adhesion and, if necessary, anchor with Imprimación Epoxi Suelos.
2. In all cases, treat mouldy bases with fungicide.
3. Same as on cement mortars.