TUTORIAL 10:
SEALING POROUS BRICK, STONE AND TILES (ENHANCING COLOUR)
Determining your product requirement:
- Measure the surface area you wish to
- Determine which products are needed for the surface you wish to paint and the finish you wish to achieve.
- Check the Theoretical Spread Rates (TSR) on each of the specified products and see how many coats of each are recommended, then calculate what quantities of each product you will require, remembering to make adjustments for the porosity for each surface. TSRs are based on products applied to smooth, sealed (E.g. an unsealed cement brick will absorb more paint than a sealed smooth one, so allow for a lower spread rate on porous surfaces).
- Check out the specifications on all the top coat choices (referring to the relevant data sheets) and decide which is right for
SEALING POROUS BRICKS STONE & TILES AND ENHANCING COLOUR WITH BRICK AND STONE SEALER
Surface Preparation
- Ensure the surface is dry and is free from dirt, grease, oil and loose particles.
- Treat for algae if necessary, with Ushevu Algae Killer. Dilute 1litre Ushevu to 19 litres water, apply to algae and leave for 24 hours, remove dead algae with hard
Application Method
- Apply StoneSeal to a small area first to ensure desired finish and
- Apply two coats of StoneSeal to brick or Allow to dry between coats (approx. 4 hours @ 25°C)
Note: Some brick and stone are more absorbent than others and a third coat may be necessary.
Relevant Product Information
| Ushevu | |
| Theoretical Spread Rate | 20m² per litre |
| No. of Coats required | 1 Coat |
| Application Method | Brush, Roller or Spray |
| Drying Time | @ 25°C – 24 hour |
| StoneSeal | |
| Theoretical Spread Rate | 15m² per litre |
| Actual Spread Rate | 4 – 8m² per litre on porous surfaces |
| No. of Coats required | 2 Coats |
| Application Method | Brush, Roller or Spray |
| Drying Time | @ 25°C – 1-hour Touch |
| Allow 4 hours Overcoating
Allow 3 days curing before subjecting to heavy foot traffic. |
