Osmo UV-Protection Oil Tints – Coloured Exterior Wood Oil

Transparent Colour with Exterior UV Protection

All untreated exterior timber gradually greys as sunlight and weather affect the surface. UV-Protection Oil Tints use transparent pigments to absorb and reduce some of this UV exposure while allowing the wood grain, knots and natural character to remain visible.

The colours have been developed to complement particular timber species, such as Oak or Red Cedar. They are not opaque paints and will not completely hide the original wood colour, grain or variation.

Why Choose Osmo UV-Protection Oil Tints?

• Transparent coloured protection for vertical exterior timber
• Helps slow UV-related greying and weathering
• UV-protection factor up to 12 with the complete two-coat system
• Allows the natural wood grain and character to remain visible
• Contains active protection against mould, algae and fungal attack
• Highly water-repellent and dirt-resistant
• Microporous and breathable finish
• Helps reduce swelling and shrinkage
• Will not crack, peel, flake or blister
• Suitable for doors, windows, cladding and fencing
• Suitable for pergolas, summerhouses and vertical garden structures
• Can be used as a complete coloured two-coat system
• Can be completed with clear UV-Protection Oil Extra where appropriate
• Easy to maintain without completely sanding the timber
• Normally requires only one thin renovation coat
• Available in sample sachets for testing on the actual timber

UV-Protection Oil Tints and UV-Protection Oil Extra

Choose Your Colour

425 Oak vs 432 Light Oak

Special Guidance for 429 Natural

Most clear exterior oils create a permanent wet-look effect that enriches and darkens timber. UV-Protection Oil 429 Natural contains balanced white pigment to reduce this colour change and help pale wood remain closer to its untreated appearance.

Which Osmo Exterior Product Is Right for Me?

Suitable Surfaces

• Exterior wooden doors
• Window frames
• Window shutters
• Timber cladding
• Weatherboarding
• Fencing
• Privacy screens
• Pergolas
• Carports
• Balcony balustrades
• Garden buildings
• Summerhouses
• Vertical timber panels
• Exterior gates
• Previously Osmo-treated vertical timber after suitable preparation

Suitable Timber Species

Natural oils, resin, treatment chemicals, moisture and previous weathering can all affect the final colour and drying. Always complete a representative test area.

Two Coloured Coats or a Clear Final Coat?

Cleaning and Reviving Existing Timber

Recommended Application Tools

Recommended Accessories

Available Sizes

Coverage is based on approximately 18m² per litre for one thin coat on smooth, prepared timber. Rough-sawn, textured, weathered or highly absorbent timber may require more product.

Technical Information

Coverage, colour and drying times are approximate. Timber species, porosity, texture, preparation, temperature, humidity, airflow and coating thickness will influence the result.

Best Conditions for Application

• Apply to clean, dry and frost-free timber.
• Timber moisture content must not exceed approximately 20%.
• Choose a dry weather window with no rain expected during drying.
• Avoid application in intense direct sunlight.
• Do not apply to excessively hot timber.
• Avoid frost, heavy dew and high humidity.
• Provide good airflow during drying.
• Allow each coat to dry completely before recoating.

Surface Preparation

• Ensure the timber is clean, dry, frost-free and free from grease, algae, dirt and contamination.
• Timber moisture content must be below approximately 20%.
• Allow new ingredient-rich or resinous timber to weather until it becomes sufficiently absorbent.
• Clean old compatible microporous finishes thoroughly.
• Lightly sand worn or uneven surfaces where required.
• Completely remove paints, varnishes, lacquers and incompatible film-forming coatings.
• Do not sand smooth timber finer than approximately P120.
• Revive greyed timber using Osmo Wood Reviver Power-Gel .
• Consider Osmo WR Base Coat on suitable softwood where additional preservative protection is wanted.
• Round sharp exterior edges to more than approximately 2mm where practical.
• Ensure horizontal sections attached to vertical timber have sufficient fall to shed water.
• Remove all sanding dust.
• Stir the tinted oil thoroughly before and throughout application.
• Complete a representative trial before coating the full area.

How to Apply UV-Protection Oil Tints

1. Confirm the timber is clean, dry and ready to absorb oil.
2. Stir the product thoroughly from the bottom of the tin. Do not thin.
3. Cut in around edges, frames, joints and difficult areas using a suitable brush.
4. Apply the first coat exceptionally thinly using an Osmo Flat Brush or suitable microfibre roller.
5. Work carefully along the timber grain and spread the coating thoroughly.
6. Complete individual doors, boards or panels from end to end where possible.
7. Maintain a wet edge and avoid heavy overlaps.
8. Check corners, rebates, joints and lower edges for runs or pigment build-up.
9. Redistribute all visible excess before allowing the coating to dry.
10. Allow approximately 12 hours’ drying with good ventilation.
11. Apply the second coloured coat equally thinly for maximum colour and UV protection.
12. Alternatively, apply one thin coat of clear UV-Protection Oil Extra as the final coat where a lighter colour build is preferred.
13. Protect the surface from rain, dew and contamination while drying.

Applying 429 Natural

1. Stir thoroughly to distribute the white pigment.
2. Apply an exceptionally thin and even coat with the timber grain.
3. Avoid heavy overlaps, particularly around edges and joints.
4. Inspect the surface from several angles while wet.
5. Redistribute any visible white, cloudy or chalky pigment.
6. Allow the first coat to dry fully.
7. Apply the second coat equally thinly.
8. Test carefully before using 429 Natural on dark or reddish timber.

Renovating an Existing Coloured Finish

1. Inspect the timber for dirt, wear, greying and coating failure.
2. Clean the surface thoroughly.
3. Use Wood Reviver Power-Gel where the timber has already greyed.
4. Allow the timber to dry completely.
5. Lightly sand loose, rough or uneven areas where necessary.
6. Remove all dust.
7. Apply one exceptionally thin coat of the matching tint where the existing finish remains sound.
8. Where the timber has become bare or heavily weathered, apply a full two-coat system.
9. Protect the coating from rain and dew while drying.

Cleaning and Maintenance

Important Application Notes

• Use only on suitable vertical exterior timber.
• Do not use as the primary finish for horizontal decking.
• UV-Protection Oil Tints is for exterior use only.
• Apply two exceptionally thin coats to bare timber.
• One tinted coat followed by clear Extra produces a lighter colour but a shorter expected maintenance interval.
• Stir thoroughly before and throughout application.
• Do not thin the product.
• Timber moisture must not exceed approximately 20%.
• Do not sand smooth timber finer than approximately P120.
• Heavy application may cause runs, slow drying and uneven colour.
• Allow approximately 12 hours between coats.
• Protect from rain, dew and contamination during drying.
• Allow oily and ingredient-rich timber to weather before coating.
• Consider WR Base Coat for suitable softwood requiring additional preservative protection.
• 429 Natural contains white pigment and should be applied very thinly.
• Darker transparent colours generally provide greater visible UV resistance.
• Always complete a representative test area.
• Use Wood Reviver Power-Gel where the timber has already begun to grey.
• Inspect the coating at least annually and recoat when necessary.

Tool Cleaning

Clean suitable brushes, rollers and reusable application equipment immediately after use with Osmo Brush Cleaner & Thinner .

Complete Your Osmo Exterior System