Step 1 - Surface preparation:
- New surface:
+ Let the surface dry after 28 days in normal condition (average temperature is 30oC, relative humidity is about 80%), the substrate moisture is lower than <16% according to Protimeter. Remove all dust, grease, wax from the surface.
+ Apply 2 coats of TOA Wall Mastic exterior for smooth surface.
- Old surface:
+ Remove all dust, contamination, loose old paint. Treat the area attacked by fungus, algae with proper chemicals. Wash the surface if required, let it fully dry, the substrate moisture must be lower than 16% according to Protimeter.
+ Repair damage area. Crack bigger than 0.1mm must be fixed and make smooth by TOA wall mastic exterior. Apply one coat of TOA 4 Season Super Contact sealer for chalky or powdery surface after making surface clean.
Step 2 - Primer: Apply 1 coat of Supertech Pro alkali sealer
Step 3 - Top coat: Apply 2 coats of Supertech Pro interior/exterior
*Note: Stir well before use and once opened, entire content should be used. Do not apply when the air temperature is under 15oC, the relative humidity is higher than 80%.
