Tenax TeRust Rust Remover Poultice Powder — 8 oz, For Rust Stain Removal from Stone & Masonry

Professional rust stain removal for natural stone and masonry. Tenax TeRust Rust Remover Poultice Powder is specifically formulated to draw rust stains up and out of porous stone surfaces using a proven chelate-based stain reversal technique — no harsh scrubbing, no surface damage. Effective on its own for most rust staining, or mix with Tenax Rust Remover Liquid for a more aggressive treatment on deep-set or stubborn stains. 8 oz dry powder format with long shelf life.

Standard vs. Enhanced Application 

• Standard use — mix TeRust powder with water to a toothpaste consistency and apply as a poultice; ideal for surface-level and moderate rust staining
• Enhanced use — substitute water with Tenax Rust Remover Liquid when mixing; activates the chelating agents more aggressively for deeper, more stubborn rust stain extraction

How to Use

1. Scoop out the needed amount of TeRust powder.
2. Mix with water (or Tenax Rust Remover Liquid for stronger results) to form a toothpaste-like consistency.
3. Apply the poultice directly over the rust stain.
4. Cover with plastic wrap and puncture several small holes with a toothpick to allow slow drying.
5. Leave in place for 24–48 hours until fully dried.
6. Remove the dried poultice — the rust stain will be drawn out with it.
7. Rinse the surface clean and inspect. Repeat if necessary for stubborn staining.

Note: Calcium-based stones (marble, travertine, limestone) may etch during treatment and require re-polishing after use.

Compatible Surfaces

• Natural stone — granite, marble, travertine, limestone, terrazzo, slate
• Masonry — concrete, brick, and mortar
• Tile & grout — sanded grout joints and ceramic tile

Key Features

• Chelate-based poultice action — draws rust stains out of porous stone without aggressive scrubbing
• Flexible application — use with water alone or boost with Rust Remover Liquid for deeper results
• Multi-surface — safe for granite, marble, travertine, limestone, concrete, brick, and sanded grout
• 8 oz dry powder — concentrated format with long shelf life; enough for multiple applications
• Easy process — mix, apply, cover, wait, remove; no special equipment required
• Professional grade — trusted by stone fabricators, restoration specialists, and tile installers

Works Well With

• Tenax Rust Remover Liquid (1 Liter) — substitute for water when mixing TeRust poultice for enhanced rust extraction on deep-set stains
• Tenax TeBlossom — Bloom Remover Kit — for blue and green CA adhesive bloom; pair with TeRust for complete stain remediation coverage
• Tenax TeBlossom & TeClean Kit — bundles bloom and organic stain removal; add TeRust for rust coverage
• Tenax BrioAction 3 Professional Stain Remover — for deep cleaning and restoration of stone and masonry surfaces
• Tenax Marble Polishing Powder — re-polish calcium-based stone after TeRust treatment if etching occurs
• Tenax Proseal Premium Stone Sealer — seal stone after stain removal to prevent future staining

Further Reading

How to Remove Stains from Stone: The Complete Identification & Removal Guide → — identify rust, CA bloom, organic stains, etch marks and more, with the right product for every stain type.