Zinsser WaterTite - Waterproofing Masonry Paint

Zinsser WaterTite is a high-performance waterproofing paint, guaranteed to keep water out. Its advanced solvent-based formula combines a waterproofing resin with Portland cement, creating a tough barrier that resists up to 34psi of water pressure – stronger than most competing systems.

Unlike standard waterproofers, WaterTite can be applied directly onto dry, damp or wet masonry surfaces, curing water problems instantly without waiting for walls to dry out. It dries to a smooth, non-gritty, bright white finish that resists dirt and dust pickup, keeping basements, foundations and masonry surfaces looking clean and fresh.

Formulated with ultra low odour, WaterTite® is ideal for interior and exterior projects above or below ground level. It also prevents recurring efflorescence on concrete and brickwork, giving long-lasting protection against water ingress and surface degradation.

Key Features:

✔ Stops Water Pressure Up to 34 psi – Twice the strength of competitors
✔ Smooth, Non-Gritty Finish – Resists dirt & moisture buildup
✔ Superior Adhesion – Bonds well to masonry, concrete & more
✔ Prevents Efflorescence & Mildew Growth – Long-lasting protection
✔ Ultra Low-Odour Formula – Less odour than latex paint
✔ Non-Yellowing, Bright White Finish – Stays fresh over time

Surface Preparation

• Ensure surfaces are sound and free from loose material, dust, grease or contamination.

• Remove existing coatings or paints where adhesion may be compromised.

• Treat efflorescence and salt deposits with a stiff brush.

• Fill cracks and defects with a suitable repair mortar or filler.

• Can be applied directly onto damp or wet surfaces – no need to wait for drying.

Technical Data

• Type: Solvent-based resin + Portland cement formula

• Finish: Smooth, non-gritty bright white (non-yellowing)

• Sizes Available: 5L, 10L

• Coverage: ~2m² per litre

• Touch Dry: 1 hour

• Recoatable: 4 hours

• Full Cure: 7–14 days

• Application Methods: Brush or roller

• Performance: Stops water pressure up to 34psi

• Environment: Interior & exterior, above or below grade

• Odour: Ultra low odour for easier use indoors

• Clean Up: Follow manufacturer guidance – solvent-based product

Directions for Use

1. Stir thoroughly before use – do not thin.

2. Apply directly to clean, prepared masonry using a brush or roller.

3. First coat must be brushed well into the substrate to ensure full penetration.

4. Allow 4 hours before recoating.

5. Apply at least 2 coats for maximum waterproofing performance.

6. On highly porous surfaces, additional coats may be required.

7. Protect from frost during application and curing.

Data Sheets 

Zinsser Watertite TDS

Zinsser Watertite MSDS