- Features
- Colours
- Usage/Coverage
- Prep/Application
- Compatible products
- Tips/FAQ
- Product numbers and sizes
- Videos
- UV Oil, Sheer and Cedar Oil comparison
Easy to apply
UV resistant (excluding Clear)
Highly water resistant
Contains no biocides or preservatives
Safe for use on children's toys
Can be finished with Treatex Anti Slip Decking Oil or Treatex UV Oil
Sheer is a lightly tinted clear finish with UV inhibitors
Exterior Oil colours can be overcoated with Exterior Oils Clear for extra wear protection
‘Clear’ is not a UV protective finish and timbers treated only with Clear will break down and bleach in sunlight much quicker than any of the other options in the range. Clear should only be used to overcoat one of the colour options in the Exterior Oils range. For a near clear finish with UV protection, please use ‘Sheer’ or for the best protection, use one of our more pigmented options.
Treatex Exterior Oils are available in the following colours (click the images for full screen)















The colours shown are indicative and are only as accurate as web displays allow and we always advise a trial application first to ensure that you are happy with the colour
Usage
Suitable for: External use
Recommended timbers: Suitable for use on most species of timber
Applications: Decking, cladding, windows, garden structures and other exterior joinery
Coverage
1L will cover approximately 15m² in one coat depending on the timber and method of application*
2.5L will cover approximately 37m² in one coat depending on the timber and method of application*
*Rough sawn timber can potentially increase consumption by a factor of 2 to 3.
Preparation
This product works best on unfinished timber. Exotic and pressure treated timbers should be allowed to weather for approximately 3 months before finishing. Previously porous finishes should be thoroughly cleaned or lightly sanded with all flaking and peeling removed before application. Ensure the surface is dry and free from any contaminants. Make sure you buy sufficient product to complete the whole project and mix multiple tins together before use to achieve the same finish.
If you find decay, mould or fungi, this should be treated first with Treatex Preservative. Exterior timbers with high tannin levels should be treated with Treatex Stain Inhibitor. Timber must have a moisture content below 18% and the temperature should be between 8 and 24 degrees celsius during application and drying.
Application
Make sure the tin/tins are stirred thoroughly before and during use.
Use a brush or roller to evenly apply the Treatex Exterior Oils, moving in the same direction as the wood grain. If possible apply the first coat to all sides of the wood before installation, paying particular attention to any end grain. Apply liberally on the end grain to fully seal.
After 12 hours of drying, a second coat can be applied. After this coat, leave for approximately 12-24 hours to dry. Don’t apply too thickly.
For decking, we recommend applying Treatex Anti-Slip decking oil.
To increase the slip resistance of decking after applying Exterior Oils : Anti Slip Decking Oil
To add a clear, UV protective coat with a high surface build (not suitable for decking): UV Oil
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.
Item No. 3160 (Clear), 3161 (Albino), 3164 (Sheer), 3167 (Champagne), 31610 (Dun), 31613 (Buckskin), 31619 (Spanish Chestnut), 31620 (Copper Bay), 31621 (Seal Brown), 31622 (Bay), 31625 (Blue Roan), 31628 (Steel Grey), 31631 (Smokey Black), 31632 (Belgian Black)
Sizes: 1L (e), 2.5L (h)
How to apply: Exterior Oils
How to apply Exterior Oils on decking

Camparison of Treatex Cedar Oil, UV oil and Exterior Oils Sheer on freshly sanded Western Red Cedar
Camparison of Treatex Cedar Oil, UV oil and Exterior Oils Sheer on Larch