1. Requirement
1.1 Requirements for labor protection work |
– During application, workers must wear full labor protection (hat, clothes, shoes, glasses, mask, and gloves).
|
1.2 Requirement for moisture |
- Substrate moisture content < 12%.
- Maximum relative air humidity 85%.
- Min. substrate temperature 13ºC.
- Max. substrate temperature 39ºC.
- Construction areas require good ventilation.
|
2. Mixing
2.1 Mixing KERASEAL WB50 |
- - Include composition A and composition B. - Using specialized mixer, approx. 600 rpm with a suitable mixing paddle. - Add the composition B to the composition A and mix a further 3 minutes until homogenous (may take a longer depending on weather conditions and equipment).
|
2.2 Mixing KERASEAL WB20 |
- Material includes 2 components: Composition A and Composition B. - Using specialized mixer to mix the composition A within 3 minutes (may take a longer depending on weather conditions and equipment). - Add the composition B to the composition A mix a further 3 minutes until homogenous.
|
3. Application steps – 1 primer and 2 coatings system
3.1 Surface cleaning and treatment |
- - The surface ensures no dust, dirt, oil. - Surface is grinded by specialized machine with suitable sandpaper.
|
3.2 Apply KERASEAL WB50 |
– Using long-hair roller to spread KERASEAL WB50 on the cleaned surface. – Applying by roller frequently ensuring uniform coverage of the material to be applied to the surface. – Do not apply primer too thick or to create puddles will cause cracking and blistering. – Allow to dry 8 hours before patching, surface treatment or apply the next steps. – The cracks on the surface must be filled by KERACRETE NS50.
|
- Applying by roller
3.3 Applying the basecoat KERASEAL WB20 |
– Spread the mixed KERASEAL WB20 on the area to be applied with short-hair roller. – Apply by roller several times and in 2 perpendicular directions, ensure the uniform of material on the surface. – When finishing the application, make sure that the basecoat completely cover the below primer and the color is relatively uniform. – Allow to dry at least 8 hours before apply the next steps.
|
3.4 Applying the topcoat KERASEAL WB20 |
– After the basecoat completely dries, the cracks on the surface must be filled by KERACRETE NS50. – After the patching positions dry, apply 1 coat on these positions to ensure the color is homogeneous before apply the topcoat. – Use the scrubber with suitable sandpaper, sanding the entire surface of the basecoat to create roughness and remove impurities.
– Spread the mixed KERASEAL WB20 on area to be applied by short-hair roller. – Apply by roller several times and in 2 perpendicular directions, ensure the uniform of material on the surface. – The topcoat must ensure the coverage, the uniformity in gloss and color. – Allow to dry at least 24 hours before light traffic and 72 hours before using.
|