Item No. 31000
Sizes: 1 Litre, 2.5L Litres


  • UV resistant clear finish

  • Highly water resistant

  • Suitable for outdoor use

  • Direct replacement of External Oak Protection

  • Easy to apply

  • Suitable for most exterior timbers

  • Can be used over External Oak colours / Exterior Oils / Classic Colour Collection

What happened to External Oak Protection?
Our External Oak Protection was highly successful but was limited to treating timbers such as Oak or Idigbo. Our new UV Oil (which replaces External Oak Protection) is a more diverse product, providing a Clear, UV and highly weather protective finish to most timbers. Here is a list of number of ways it can be used:

  • For those wishing to treat external oak surfaces - we recommend still to apply a coat of one of our External Oak colours (Virgin/Regency Oak), followed by two coats of Treatex UV Oil.

  • For those treating softwoods/other hardwoods externally:

    • If you want a clear finish - you can apply just 2 coats of our new UV Oil for a clear, UV protective finish.

    • If you want to change colour - you can apply 2 coats of one our Exterior Oils Range, followed by a coat of UV Oil for further UV and Weather protection.

    • UV Oil can also be applied over Treatex Classic Colour Collection.


Suitable for: External use

Recommended timbers: Suitable for use on most timbers - please check if unsure. Timbers with a high tannin content such as air dried Oak may still leach tannin in the early stages.

Applications: Claddings, doors, windows. shingles and other exterior joinery - not suitable for decking or other walkways - horizontal timbers may wear sooner.


1L will cover approximately 25m² in one coat depending on timber and method of application (rough sawn/planed may consume more).
2.5L will cover approximately 50m² in one coat depending on timber and method of application (rough sawn/planed may consume more).


Treatex UV Oil works best on unfinished timbers. Previous finishes which stop UV Oil penetrating into the timbers (e.g. paints and other ‘closed’ finishes) must be fully removed prior to application. Previous porous finishes should be lightly sanded to 120 grit before over coating. When over coating a previously finished surface, a trial application is essential. Flaking or peeling finishes must be fully removed prior to application. Ensure the timber is dry and free from possible contaminates e.g. algae, grease, dirt, dust etc. We advise that when using Treatex UV Oil, sufficient product is purchased to complete the whole project and when more than one tin is required it is advisable to mix them together before use. The timber must have a moisture content below 18% and the ambient temperature must be between 8oc and 25oc during application and drying. We strongly recommend a trial application prior to starting the project.


Stir tins thoroughly, before and during use. Use a brush or roller to evenly apply Treatex UV Oil in the same direction as the wood grain. Pay particular attention to the end grain, where you should apply liberally. If possible, coat all sides of the timber at least once. After approximately 12 hours the first coat can be overcoated. Apply with a brush or roller a second coat of Treatex UV Oil, and leave for approximately 12-24 hours to fully dry.


Treatex brushes and rollers are available. Wet brushes and rollers can be cleaned with Treatex Thinner or white spirit. Store tins in a cool and frost free environment. Unopened tins will last for five years. Once tins are opened, transfer contents to a smaller airtight container. Treatex UV Oil can be used as a protective top coat of applications of Treatex Exterior Oils and Classic Colours

UV Oil
from 1.75
Add To Cart