Plaster Sealer: Why You Need It

You’re in the midst of the economic uncertainty globally, but you still want your home to look great. Right? If you’ve just had your walls plastered, you might want to save yourself a pretty penny by doing the painting yourself. Before that, though, you need to make use of a good plaster sealer. Here’s why:

Plaster is highly absorbent

Fresh plaster is quite absorbent, and that coat of paint you’re eager to splash onto it is full of moisture. If you apply your coat of paint straight away the plaster will absorb this moisture and cause your paint to crack and peel. Then you’re back to square one.

A coating of plaster sealer will help to separate your plaster from your paint. This way you can apply your paint coat to an efficiently adhesive surface without any risk of having the moisture sucked from it.

Seal up the imperfections

Often you’ll find that once your plaster has dried it might leave behind a host of cracks, and you’ll start to see some uneven areas. A plaster sealer or plaster coating like Grantex that has been designed to cover these blemishes and create a smooth, even surface will be a great help.

Beat the base

One of the main features you need in a plaster coating is for it to be alkali resistant. Many walls and plaster varieties, especially those that contain lime, have high alkalinity. If you try to paint onto this material to soon the alkalinity will cause your paint to discolour, which will result in a wall that looks nowhere near as attractive as you had intended.

Applying an alkali resistant coating helps to protect the subsequent layers of paint against this, which is handy when you don’t have time to wait for the masonry or plaster to cure properly (this could take up to a year in some cases).

Best of all, getting the right plaster sealers and coatings is as easy as finding the right paint manufacturer. For South Africans, we suggest contacting Paintcor, makers of quality paints since 1986.