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Paint Manufacturers Description: Exterior Wood Finishing GuideWood that is subject to outdoor exposure will eventually rot and decay from environmental factors such water absorption, humidity, heat, UV light and pollutants.The UV light (ultraviolet) from the sun is the main culprit causing the timber surface to deteriorate. This break down, depending on the level of exposure to the elements and the species of wood can take as little as 1 week to start to show signs of degradation. Once exposed to the elements without protection, timber will develop small surface cracks as well as a loss of colour. The grain will become raised, the surface will become roughened and the timber will absorb moisture, the process of wood rot has started.It is worth mentioning at this point that the moisture of the timber is extremely important. Once the timber has taken on moisture it may be difficult to successfully apply an oil based product onto the surface as oil and water do not mix; therefore the product will not penetrate the surface and will simply sit there and eventually wash off.The point to bear in mind is: do not allow untreated timbers to be exposed to the elements especially during the winter months or when rain is expected. Timbers which have a high tannin content, Oak and Idigbo to name two will create great problems if they are exposed to moisture.To stop this degradation a protective coating needs to be applied to the surface of the timber. The protective coating can be in the form of a paint, wood stain or oil... View Full Blog Content...
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