Intergrain UltraPrep Timber Cleaner is a professional‑grade, high‑strength timber cleaning concentrate designed to prepare exterior timber surfaces before coating. This biodegradable formula contains naturally occurring oxalic and citric acids that effectively remove surface contaminants, restoring weathered timber and ensuring a clean substrate for superior coating adhesion.

Key Benefits

• Deeply cleans and restores weathered, grey, tannin stained, mould‑ or mildew‑affected timber to a fresh, uniform appearance.

• Removes surface contaminants including rust, tannins, mildew, grime and natural oils that can prevent coatings from adhering properly.

• Formulated with biodegradable, garden‑safe acids when diluted and rinsed as directed.

• Helps improve the performance and longevity of subsequent coatings by preparing timber for optimal finish adhesion.

Features

• High‑strength timber cleaner concentrate with oxalic and citric acids.

• Biodegradable and eco‑friendly cleaning action.

• Effective on new, weathered or stained exterior timber.

• Easy water clean‑up after use.

• Mix ratio typically 1 part cleaner to 4 parts water for effective results.

Recommended Uses

• Preparing exterior decking, cladding, fencing, pergolas, outdoor furniture and other timber structures before coating.

• Removing greying, staining and surface contaminants that can interfere with top coat adhesion.

• Ideal prep step before applying Intergrain finishes like oils, stains and sealers.

Application Tips

• Sweep or wash timber to remove loose dirt prior to application.

• Apply diluted solution with a stiff bristle brush and allow to dwell before thorough rinsing.

• Rinse well to avoid residue which could affect subsequent coating performance.

• Allow timber to dry completely before applying coatings.