Country Wide Walling

Country-Wide-Walling-Manager

Common Problems with Painting Concrete Walls

Painting concrete walls can result in a few problems if the concrete wall has not cured. If the concrete cannot adequately cure before it is painted, the paint will trap the excess moisture within the concrete and the paint can peel some of the cement as it peels itself. Painting the concrete wall can also cause the plaster to not receive the water cure that it needs.

common problems

Cracks in the Wall

Before priming the wall, cracks in the concrete should be filled with a material that can withstand weather effects. If the wall plaster has a texture, then sealant should be of a matching texture. If it is not, bands of smooth surface can be seen through every coat of paint in a different contrast.

Coverage

If primer and paint is applied, it needs to be applied across the whole surface in order to have the best results. Once the primer has been applied and allowed to cure, the finish coat needs to be laid on in several thick coats. If not, the uniform color will not be attained and you will not achieve the look that is desired. Some projects do not have primer applied before the paint. Other projects may have had paint thinned so much that the coat is not even effective. This makes the wall look like it did not receive adequate coating.

Primer

In order to get the bond desired, the right primer will need to be applied to new concrete walls. This will prevent paint delamination also. There are some paints and primers in particular that needwall painting to be used together. Although cement plaster and concrete should have a coat of primer before the paint is applied, painters do not always prime concrete and plaster.

Delamination

Delamination is the process of paint peeling from a new concrete surface or cement plaster. Paint will delaminate from concrete just as it does from wood and metal. This is why the concrete wall needs to be well prepared and all application procedures need to be followed. Moisture from rain or from the concrete not curing will release from the concrete and cause cleaving.

Over Brushing the Paint

If a painter applies paint to the brown coat on cement plaster, the paint will serve as a bond breaker causing delamination. Plaster behind a coat of paint will turn soft if paint is not allowed to cure. Paint will keep the water from evaporating properly. Concrete walls need to be prepped and primed. Paint needs to be thick and not diluted.

Please contact Country Wide Walling for a free quotation today

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Country-Wide-Walling-Manager

Plastering my Boundary Wall

plastering walls2

Pre cast walls are extremely popular and hundreds of thousands of homes, businesses, government institutions and departments have made use of its applications. There is however a limiting factor in terms of the look and designs available to the consumers of the product. The patterns and designs that are available, very rarely compliment the appearance of a persons’ home. Over time, precast walls can also become dirty and unsightly. These were the motivating factors that caused us to research ways and means to alter the aesthetic value of a precast wall. We have replicated many of the traditional expensive looking designs that are associated with plastered brick walls, as well as developed new designs that can all be easily and inexpensively applied to precast walls. Our market research indicates that the costs of installing a new precast wall and plastering it, are half of that of having a brick wall built. The inconvenience associated with building a brick wall is virtually eliminated.

Up until recently, pre-cast walls could not be plastered in a sustainable way. The conventional methods and plaster mixes used to plaster built brick walls simply do not work on the smooth face of pre cast walls.

The plaster often cracks and delaminates after a short time.

You need a bonding agent specifically designed to eliminate the problems associated with plastering the smooth surface of a precast wall.
Use an industrial strength bonding formula that has been specifically designed as a latex admixture for bonding plaster pre cast walls.  The addition of this revolutionary bonding formula confers numerous advantages over untreated mortars and concretes, such as:

•    greatly improved adhesion to substrates, including dense impervious concrete
•    excellent resistance to water and water vapour
•    improved toughness and flexibility
•    better resistance to frost
•    improved resistance to certain chemicals
•    diminishing dusting

Please contact Country Wide Walling today for a free quottion.

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