Ensure the perfect mix and professional results every time with Filltite Extra Hardener 30g — the essential curing agent for Filltite 2PK High Performance Wood Filler. This peroxide-based hardener activates the filler, allowing it to cure quickly to a strong, durable finish. Ideal for both trade and DIY use, it delivers fast-setting, consistent performance for interior and exterior timber repairs. Also ideal when you need extra hardener for multiple jobs or larger projects.

Key Features

• Essential curing agent for Filltite 2PK High Performance Wood Filler

• Provides fast, even curing for a tough, lasting repair

• Convenient 30g tube for accurate mixing and control

• Suitable for all interior and exterior wood applications

• Perfect for larger projects or regular filler users

Ideal For

• Activating Filltite 2PK Wood Filler for timber repairs

• Large-scale or repeat use where extra hardener is needed

• Professional decorators and carpenters

• DIYers tackling ongoing restoration or repair work

Application

1. Dispense the required amount of Filltite Wood Filler onto a clean surface.

2. Add Filltite Extra Hardener — roughly a pea-sized amount per golf ball-sized portion of filler.

3. Mix thoroughly until an even colour is achieved.

4. Apply immediately using a Filltite Continental Filling Knife for best results.

5. Working time is typically 5–10 minutes before curing begins.

Application Note

Do not use filler without adding hardener, as it will not cure. Mixing ratios can be adjusted slightly depending on temperature and working time required.

Available Sizes

30g Tube

Safety & Restrictions

• Contains peroxide-based hardener — handle with care.

• Avoid contact with skin and eyes.

• Use in a well-ventilated area.

• Keep away from heat and direct sunlight.

• Keep out of reach of children.

Aftercare

Replace cap immediately after use. Store upright in a cool, dry place away from direct heat.