Ronseal High Performance Wood Filler
Price range: £14.95 through £18.95
Ronseal High Performance Wood Filler is a tough, two-part filler for repairing damaged wood indoors and outdoors. It fills deep holes, cracks and damaged areas, hardens in approximately 30 minutes and can be sanded, planed, drilled, screwed, painted or varnished once dry. Available in Natural, White and Dark, in 275g and 550g sizes.
- Suitable for interior or exterior use
- Quick drying and suitable for any size hole
- Can be sanded, planed, filed, nailed and screwed once dry
- Can be stained, varnish and painted
- Won’t shrink or crack
See full instructions below
UK FREE delivery on all orders over £24
Description
Ronseal High Performance Wood Filler is a durable, two-part wood filler designed for substantial repairs to interior and exterior timber. Its tough formula fills deep holes and damaged areas, helping restore wooden surfaces such as window frames, doors, sills and furniture before refinishing.
Unlike ordinary surface fillers, Ronseal High Performance Wood Filler can be used for deep repairs and is designed to flex with the natural movement of wood, helping resist shrinkage and cracking. Once hardened, it can be sanded, planed, filed, drilled, nailed and screwed.
Available in Natural, White and Dark, with 275g and 550g options.
Features and Benefits
- Two-part filler for substantial wood repairs.
- Suitable for interior and exterior timber.
- Can fill holes and damaged areas to any depth, when used as directed.
- Hardens in approximately 30 minutes under normal conditions.
- Can be sanded, planed, filed, drilled, nailed and screwed once hardened.
- Can be painted, varnished or stained after preparation.
- Designed to resist shrinkage and cracking.
- Available in Natural, White and Dark.
What Can Ronseal High Performance Wood Filler Be Used For?
This high performance wood filler is suitable for a range of interior and exterior repairs, including:
- Window frames and sills: repairing damaged timber and deeper holes.
- Doors and door frames: filling damaged areas before sanding and repainting.
- Furniture repairs: filling deeper damage in suitable wooden furniture.
- Exterior woodwork: repairing suitable timber exposed to outdoor conditions.
- Rot-damaged timber: rebuilding suitable areas after removing rotten wood and treating the remaining timber with an appropriate wood hardener.
This product is not intended for filling the gaps between floorboards. For shallow surface imperfections, a suitable multipurpose wood filler may be more appropriate.
How to Use Ronseal High Performance Wood Filler
- Prepare the wood. Remove loose, damaged or rotten timber and ensure the repair area is properly prepared. If repairing rotten wood, follow Ronseal’s instructions for using a compatible Ronseal Wood Hardener.
- Mix the filler. Mix approximately a golf-ball-sized amount of filler with a pea-sized amount of hardener, following the instructions supplied with the product.
- Mix thoroughly. Blend until the mixture is one uniform colour, with no streaks remaining.
- Apply immediately. Press the mixture firmly into the damaged area, leaving it slightly proud of the surface to allow for sanding.
- Shape the repair. Smooth the filler with a suitable filling knife before it hardens. The working time is limited, so prepare everything in advance.
- Allow it to harden. Under normal conditions, the filler is ready to sand, plane or file after approximately 30 minutes.
Drying and working times can vary with temperature and the amount of hardener used. Follow the manufacturer’s instructions and ensure good ventilation during application and curing.
Can You Paint or Varnish Ronseal High Performance Wood Filler?
Yes. Once fully hardened and prepared, Ronseal High Performance Wood Filler can be painted, varnished or stained. Sand the repair to the required finish before applying your chosen coating.
Bear in mind that wood filler may absorb stain differently from the surrounding timber, so the repaired area may not match the original wood exactly. Test your chosen finish on a small sample of dried filler first.
Buy Ronseal High Performance Wood Filler from Priory Polishes
Ronseal High Performance Wood Filler is a useful choice for deeper repairs to damaged wood, whether you are restoring furniture, repairing window frames or maintaining exterior timber. Choose from Natural, White or Dark to suit your project, and select the pack size you need.
Please note –
Cleaning – Your tools can be washed in white spirit.
Safety Data Sheets
Additional information
| Weight | N/A |
|---|---|
| Colour | Natural, White, Dark |
| Size | 275g, 550g |
1 review for Ronseal High Performance Wood Filler
You may also like…
-

Osmo Wood Filler – 250g – All Colours
£9.80 Select options This product has multiple variants. The options may be chosen on the product page -

Ronseal Wet Rot Wood Hardener – 500 ml
£18.95 Add to basket -

Repair King furniture Care Pack – Wax Filler Sticks
£10.00 Select options This product has multiple variants. The options may be chosen on the product page -

Liberon Wax Filler Sticks – 50g
£8.99 Select options This product has multiple variants. The options may be chosen on the product page












Christopher Wilkins (verified owner) –