FAQs
The right product choice for use
Surface preparation work (surface treatment before painting)
The process of painting
Quality of paint products
Any one factor does not meet the impact on the longevity of the overcoat.
The overcoat must be able to decorate, withstand environmental conditions or other special requirements. So depending on the requirements of the project that has the right product choice.The methods of painting by hand:
Roll paint with roller.
Paint with brush
Spray paint with spray gun
Knife plastering (puty layer)
Dip paint
The choice of paint method depends on:
– Kind of paint
– Surface conditions.
Coverage is the number of m2 that 1llitre (or kg) of paint can be coated. How to determine the amount of paint needed:
Must determine the exact area to be painted.
Check the coverage of the type of product to be painted according to the manufacturer’s instructions, then calculate the amount of paint to use..
Primer is a very important layer, having the following effects:
Creating adhesion to use surfaces and coatings.
Protects the coating from secreting internal chemical reactions such as alkali, permeability, corrosion, preventing coating from discoloration due to alkali, yellowing, peeling or rusting. clay …
Thus, the primer increases the durability of the coating.
Because of the importance of the primer, the application must ensure that the entire surface is applied.
For flat, non-handicapped surfaces, any type of painting tool can be used, but for angled and convex surfaces, we must choose the appropriate construction tools. For example: For concrete surface, roller or brush can be used for construction but for metal surface, spray gun or brush should be used.
The choice of primer is also very important. Every product comes with a primer that comes with it, but under certain conditions, one can use another suitable primer.
White paint cannot be used instead of primer because white paint does not have the necessary features of the primer such as: creating intermediate adhesion between the surface and the coating, resistance to alkali, stain, protect layer surface covered.
Do not use white cement instead of primer because:
Without creating a film, it can not create an intermediate adhesive layer.
Easily chalked as peeling coating.
No alkali resistance
If the old paint layer is still good, rough sanding, surface cleaning is possible to repaint the coating.
If old paint peeling, stain, moss, then we must clean the surface and use appropriate primer to repaint.
Water-repellent paint is a water-resistant acrylic-based paint. It can be used well on surfaces such as concrete walls, cement, water tanks, roofs, etc.
Stir well before using.
Use an oil-resistant roller.
Definitely roll, avoid rolling over and over again.
When applying the second coat, make sure the time for painting is separated by layers.
Must wear a mask and eye protection.
Water-resistant paint is a fast-drying paint, so it dries very quickly. Workers rolling for a long time dipping paint will occur when the paint starts to dry, so when rolling creates fibers on the surface and rollers make the surface uneven and rough.
After the 1st coat without waiting enough time to paint away from the second layer, the second coat will cause the second coat to create an uneven state, wrinkle the surface. Principle of waterproofing paint roller must be definitive rolling, avoid rolling over and over again on the same rolling.