What Are The Most Common Problems of Exterior Paints To Be Aware of?

When it comes to painting the exterior walls of houses, the specialists have to keep in mind the following issues.

BLISTERING

This is the phenomenon of bubbles appearing on the paints and the paint peeling off, exposing the primer or the outer layer of the rendered surface or the brickwork.

Causes: This generally happens when the surface has not been cleaned properly by the exterior home painters, or the moisture-laden surface of the wall has not been treated adequately to see off the moisture. Also, when acrylic paint is exposed to a high proportion of dew, humidity and rain, shortly after the painting, that may lead to the appearance of blisters.

CHALKING

This phenomenon involves the formation of a fine power-like substance on the paint due to weathering. This can subsequently lead to fading away of the colour. Though a little bit chalking might be a normal phenomenon, too much chalking might lead to the erosion of the paint, which may subsequently lead to discoloured walls.

Causes: This happens when low-grade paints or intensely pigmented paints are used on the exterior walls. It also happens when walls meant for interior walls are used by exterior house painters on exterior walls, with a view to cut down costs.

CRACKING & FLAKING

Dry paints at times split through an entire coat, leading to the comprehensive failure of the paint. However, this does not happen overnight.

The paint will at first develop hairline cracks, and then the cracks will widen, and ultimately flaking of the paint chips will start taking place. This is where appointing experienced exterior wall painters in Sydney will make the difference. These pros will point out the fault and will take evasive actions to rectify the issue.

Causes: This happens when the surface preparation prior to the painting has been poor. It happens more so when bare woods are painted without the application of primer. Besides, painting in too cold or dry condition may lead to this problem, as this will lead to too fast drying of the paint, so much so that the paint does not get the chance to adhere to the surface.

CROCODYLING

This is the phenomenon of patterned cracking of the paint, which roughly resembles a crocodile’s skin (hence the name)!

Causes: This happens as and when extremely hard and rigid paints like alkyd enamel have been applied on a more flexible coat of paint, such as acrylic primer. It also happens when a top coat of paint has been mistakenly applied on the undercoat before it has dried.

POOR COLOUR RETENTION & FADING

Premature or excessive lightening of the colour of paint before application at times lead to poor colour retention capacity and fading. It happens more so on surfaces that are exposed to southern sun for a formidable share of the day. Sometimes, fading or reduced retention capacity the colour paint may be a prime cause behind chalking of the coating.

Causes: When paints that are meant to be used on the interior walls are applied mistakenly on the outdoor walls, this phenomenon takes place. Also, shades that are vulnerable to UV rays, like bright reds, yellows and blues fade out quickly.

So you see, there are so many factors a bunch of competent residential exterior painters in Sydney has to keep in mind when they pick up projects of exterior painting.

That is the reason you need to put your stakes on a reputed company that has been into painting for years. What better name can you opt for than On Point Colour Painting Pty Ltd?

Being home to some of the most promising exterior house painters in Sydney, we will deliver nothing but the best, when hired. For further details, call us at 0424 845 188 during our business hours.