Finishing Your Door
EXTERNAL DOORS
External Doors, frames and panels may be treated with an oil/spirit based Microporous treatment of quality exterior grade. A pre-dec coat and three top coats are required. If painting then an oil (or Aluminium) based primer, 2 undercoats and 2 top coats, again spirit or oil based, must be used.
Be sure to seal inside lock and letter box cut outs, behind hinges, both the top edge and bottom edge underneath the door, and door sides to prevent moisture entering the timber. This is because the timber has a specific moisture content that must be maintained. Failure to do so will void your warranty.
A pigmented treatment should be used to protect the timber from ultraviolet rays. Clear varnish alone is not sufficient to protect the timber unless the product specifically offers UV protection.
NEVER use a water based product, paint, oil or wax (eg. Ronseal Quick Drying Woodstain) on your new external doors, frames, panels etc. We do not consider these to give adequate protection and no guarantee claim will be entertained for goods treated with such products.
| One Base Coat – HLS | Three Top Coats – THB |
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Sikkens Technical Advice Centre: 0800 0522121
| One Base Coat – Classic | Three Top Coats – Extra |
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Sadolin Technical Advice Centre: 08447 708998
INTERNAL DOORS
Internal doors can be treated with paint or varnish type finishes. Some types such as the oak engineered internal doors may be treated with Danish Oil or similar. Be sure to apply four coats to a new door and fresh coats periodically.
Do not use waterbased products (eg. Ronseal Quick Drying Woodstain). These will cause adverse effects to your doors and void your warranty.
Please note: Doors in high humidity areas such as airing cupboards, bathrooms and shower rooms etc. require external quality treatment to maintain the correct moisture content as mentioned below.
Be sure to seal inside lock cut outs, behind hinges, both the top edge and bottom edge underneath the door, and door sides to prevent moisture entering the timber. This is because the timber has a specific moisture content that must be maintained. Failure to do so will void your warranty.
| Danish Oil | Briwax |
| Four coats | Four coats |
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These are some suggestions but before applying wax or Danish oil you MUST contact the manufacturer before using to ensure suitability.
Briwax Technical Advice Centre: 0208 658 2299
INFORMATION REGARDING COATING
Regardless of how many coats any individual treatment product may say is required, our terms and conditions require the minimum as detailed above.
If any door (or frame) manufacturer has given finishing advice then this must be adhered to over the advice given above. This especially applies to items such as external doors when being fitted in internal locations. Such doors may require an exterior quality finish when fitted internally.




