Question.
I am having windows constructed in sapele – due for completion early Oct. They are provided primed but I am having them painted at home. We will be painting them inside the house before they are fitted so they can several coats to protect them properly before being exposed to the elements but they will be painted by brush. I would like advice on which paint to use. I have looked at Teknos waterbased primer and topcoats (maintenance 7-10 years) and Dulux Weathershield Preservative Basecoat and Opaque Woodstain (solvent based with a maintenance of 10 years). I have read very positive reviews of both but don’t know which will ultimately protect my windows best – we live in a very wet and windy area, my house is 200 years old and the walls get quite wet! I also generally prefer the finish of oil based paint. Please can you give me advice asap as the joiner needs to know which primer to use shortly.
Please help, this problem is sending me nuts.
Thanks in advance.
Helen
Answer.
Helen,
Thank you for your enquiry. Ideally wood windows should be painted in the workshop before assembly and glazing. This ensures all surfaces of the wood are sealed and exact tolerances can be allowed for. It also prevents seals from being painted over and obstructed. Professional spraying gives a much superior paint foundation which will last longer.
Personally I would use the micro-porous/Teknos type primer and 3 top coats as this allows the timber to breathe and maintenance down the line is much easier than oil based gloss paint. Whereas if moisture is to penetrate through a crack or a joint on an oil based finish it’s more likely to be sealed in causing the wood to rot.
Painted finishes will generally last longer than stained ones. The darker the stain finish means the more Uv protection and hence the longer lasting finish.
Good luck with the project.
Kind Regards,
David
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