Cuprinol Wood Preserver Clear

Cuprinol Wood Preserver Clear is a clear, multi-purpose, water-based wood preservative for interior and exterior use. Protects against rot, decay, mould and blue-staining fungi. Can be used as a pre-treatment prior to finishing with any compatible interior or exterior protective wood finishes.

Alternative wood preservative treatments in the Cuprinol range

Product Use Cuprinol 5 Star Complete Wood Treatment (WB) A clear, water-based, all-in-one wood treatment for interior timber. Rids wood of dry rot, wet rot, fungi and woodworm Cuprinol Ultimate Garden Wood Preserver A water-based wood preservative for garden timber. Perfect for sheds, fences, summerhouses and garden gates Cuprinol Exterior Wood Preserver A water-based exterior wood preserver for use on sheds, fences, cladding and all sawn wood

Ensure that surfaces to be treated are clean, dry and free from surface dirt, loose debris and any organic matter, including mould, mildew, algae and fungi.

Bare or New Timber

• Remove any surface biological growth, dirt and debris with a stiff brush, broom or scraper
• Areas affected by mould and algae should be treated with a suitable garden cleaner
• All rotten timber must be cut out and replaced
• If the wood surface is looking worn or has greyed from sun damage and the effects of weathering, use a suitable reviver or restorer
• Any holes, gaps or splits in the surface of the wood can be filled with Cuprinol All Purpose Wood Filler, Cuprinol Ultra Tough Wood Filler or other suitable wood filler

Previously Coated Timber

Existing surface coatings such as paint or varnish must be fully removed back to bare wood before using Cuprinol Wood Preserver, either by sanding or using a suitable wood stripper.

Always do a test area before starting any project to assess product suitability and finish. Follow the manufacturers instructions on the container at all times.

1. Apply 2 coats of Cuprinol Wood Preserver with a suitable brush
2. Leave the first coat to soak in before applying the second but reapply before the first is fully dry (typically 2-6 hours)
3. Leave 16 hours for the second coat to dry before painting, staining or varnishing. Do not spray
4. For dip application, dip the timber for at least 3 minutes if practical

Please Note: The application of this product may cause darkening of some timbers. To ensure thorough protection, treat all surfaces, and apply to any surfaces cut after treatment.

After drying, wood glues, fillers, mastics and knotting solutions can be used on the timber as normal. Treated wood should be allowed to dry for 6-8 weeks before laying plastic floor coverings, rubber backed carpets or underlay, hanging vinyl wallpaper or using mastics.

Is the Cuprinol Clear Preserver the best thing to use on mahogany window frames?

Although this product would be suitable for this type of project, it is wax-free, meaning that it is not suitable as a standalone treatment. You will need to give the preserver a topcoat to help lock in the preservative and give the timber weathering protection. Give our Woodcare Experts a call on 01303 213838 to explore your options.