Cool Paint

Remedial

In most cases damaged paint is unable to be repaired, as the paint film is often permanently damaged. While temporary patchwork repair such as painting over is possible, it often does not address the root cause of the issue. As such, the problem will more often than not return until the root cause has been addressed. This may include water leakage or trapped water.

For damages due to the water, it is recommended to begin by first removing any blistering or flaking paint through scraping. Followed by a thorough cleaning of the surface. This is followed by the application of a layer of sealer binder, which purpose is to seep into the porous surface where water is bound to penetrate. This layer should then be given sufficient time to dry as per manufacturer instruction.

A filler coating is then added if required to create a leveled surface for painting. This should also be given sufficient time to dry as per manufacturer instruction. This is followed by an undercoat or primer which is applied to improve adhesion of paint to the substrate as well as prolong durability while improving protection. Lastly, a layer of paint is added to give the surface the desired colour. Latex and oil based paints are often utilised in environments that are prone to water exposure. This creates a barrier between the substrate and the elements.

References

SS652: 2019 Maintainability of Facilities

BS 8000-0 Workmanship on Construction Site

SS 150 Specification for emulsion paint for decorative purposes

SS 542 Code of practice for the painting of buildings

SS 554 Code of practice for indoor air quality for air-conditioned buildings

BS 6150 Painting of buildings – code of practice

BS EN ISO 12944-4 Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 4: Types of surface and surface preparation

BS EN ISO 1513 Paints and varnishes — Examination and preparation of test samples

BS 8221-2 Code of practice for cleaning and surface repair of buildings. Surface repair of natural stones, brick and terracotta