Cuprinol Ultra Tough Wood Filler Exterior Woodcare - Natural - 250g

The filler is workable for up to 10 minutes and typically dries hard within 30 minutes under normal conditions.

Yes, it is suitable for both indoor and outdoor use and provides a long-lasting, weather-resistant repair.

You have approximately 10 minutes to mix and apply the filler once the catalyst has been added.

Yes, once dry and sanded, the filler can be painted or woodstained to match the surrounding area.

Remove as much product as possible from application equipment before cleaning with a brush cleaner.

Use a golf ball size of filler to approximately 40mm (1.5 inch) of catalyst paste. Mix thoroughly until uniform.

Yes, it can fill holes of any size or depth. For holes deeper than 25mm, it is recommended to fix screws into the bottom of the hole for better anchorage.

Ensure the correct ratio of filler to catalyst was used. Too little catalyst can result in slow hardening. Check product expiry date and storage conditions.

You may have used too much catalyst. Reduce the amount of catalyst in future mixes. Only mix what you can use within the 10-minute working time.

Ensure the wood surface was properly prepared, clean, dry, and free from dust, paint, or varnish. Pre-treating with a wood preserver may improve adhesion.

Ensure holes were filled in layers if deeper than 25mm, or use screws for anchorage in deep holes. Check that all decayed wood was removed before application.

Allow the filler to cure fully for the recommended time. A slight tackiness may occur but should not affect sanding or finishing. Ensure proper mixing to avoid this.