
Wall sealers are often the neglected component of most first time home painters because novice home owners are ignorant of the long lasting benefits of applying a layer of sealer before painting their walls.
For the uninitiated, sealers are formulated paint with high resin content and low solid pigment (that gives colour to paint) content to regulate the absorption of the top coat finishing paint.
The resin content within the sealer will form a coating barrier upon drying to prevent the finishing paint from leaking into the inner most wall surface.
Moreover, different materials absorb liquids at different rates.
Finishing paint which is applied to a surface that has several different porosities will not dry at equal rates.
Those areas of the surface which absorb the paint quickly will pull the paint (and paint particles) deeper into the surface.
The sheen of the paint will appear uneven, even though the surface which was painted is smooth!
Therefore, we usually recommend our clients to apply a layer of sealer first in order to minimize incidence of patchy finishing which would eventually involve re-painting and additional work.
Now that you are aware of the importance of applying a layer of wall sealer, the other most common question would be choosing the type of wall sealer.
Water based sealer, as its name implies, is formulated using water. It take less time to dry, has lower odour level, clean easily with water but do not have the same coverage as oil based sealer (about 9 square meter vs. 15 square meter for oil base sealer).
Oil base sealer, on the other hand, is favored for its higher coverage (about 15 square meter) which means that it uses less sealer to cover more surface area compared to water base sealer (and hence more economic!)
This is possible as oil base sealer has more volume solid content.
However, as oil base sealer uses solvent as its base, it has a much strong smell and takes more time to dry and apply.
As such, we would recommend our clients water base sealer for enclosed and air-conditioned environment and oil base sealer for exterior surface that requires stronger outdoor protection.
You may visit our
estore under for the various brand we carry which includes ICI Dulux, Nippon Paint, Berger, Kansai, Jotun, Mesa etc.