Varnishing Wood
| Surface preparation - Bare wood> | One-component systems> |
| Previously varnished - Wood> | Two-component systems> |


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There is nothing more eye catching then perfectly varnished wood, enhancing the natural colour and the beauty of the wood, but also adding protection from the severe marine environments. The surface preparation of wood before varnishing is important not only to achieve a long lasting finish but the clear nature of varnish will show any area of the wood which is in poor condition or which has not been prepared properly.
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Surface preparation - Bare wood
The wood should be thoroughly cleaned and degreased to be free from traces of oil and grease which may be present especially in oily woods. Sand the wood with a medium-fine abrasive paper in order to provide a rough pattern that allows a keying for the subsequent coatings system. All dust and sanding residues should be thoroughly removed from the substrate by brushing and vacuuming. Clean the surface with a cloth soaked with Thinner 203, allowing to dry fully before applying the recommended varnishing system. When priming wood with varnish depending on the Skipper's Line varnish which is used, dilution of the varnish with the appropriate thinner will aid the penetration of the varnish enabling better adhesion to the substrate.
They may be different reasons as to why you need to re-varnish.
1. The varnish is crazing, showing loss of adhesion, UV damage to the wood resulting in loss of colour
or
2. Simply good maintenance on your behalf by wanting to apply a fresh coat of varnish.
if the reason is 2, it will be suitable to sand the existing varnish with a fine abrasive paper and thoroughly clean and degrease the surface, removing all dust and sanding residue. Proceed with the application of a varnish compatible with the pre-existing one, if the varnish is unknown then it is recommended to remove the varnish back to bare wood or to do a test patch to see if the varnish is compatible.
If the reason is 1, varnish is crazing, cracking, coming off or has lost its colour, then it is recommended to remove the old varnish back to bare wood, by using a remover like Svernigraf or by sanding and scraping the varnish, making sure that the surface has been thoroughly cleaned and degreased. Proceed by following the surface preparation for bare wood and follow up with recommended varnishing system.



| Exterior | Interior |
|---|
| Priming |
1-6 coats of Poliglass Varnish (2-pack) or 1-3 coats of Poliglass Gel High build (2-pack) |
4-8 coats of Topkapi UV or Starwind UV or Superwind or Bekol Gloss
|
1-2 coats of Poliglass Varnish (2-pack) |
2-5 coats of Topkapi Opaca or Bekol Matt |
| Finishing |
3-4 coats of Topkapi UV or Starwind UV or Superwind or Bekol Gloss
|
|
2-3 coats of Topkapi Opaca or Bekol Matt |
|
| Exterior | Interior |
|---|
| Priming |
2-6 coats of Poliglass varnish or 2-4 coats of Poliglass Gel (high build) |
5-8 coats of Space Clear UV or Acriglass UV |
2-3 coats of Poliglass Varnish or 1-2 coats of Poliglass Gel (High build) |
4-6 coats of Polisatin varnish or Polimatt varnish |
| Finishing |
3-4 coats of Space Clear UV or Acriglass UV |
|
2-3 coats of Polisatin varnish or Polimatt varnish |
* for gloss interior build up with Poliglass varnish or Poliglass Gel |