Teamac Metaclor Underwater Primer is a modified chlorinated rubber-based primer designed for excellent adhesion and protection on steel, wood and GRP (glass-reinforced plastic).

Containing zinc phosphate for added corrosion resistance, this primer performs exceptionally as both an underwater primer on properly prepared steel and as a sealing coat compatible with most conventional coating systems.

Recommended for use below the waterline or as part of a full marine protection system when overcoated with Teamac Chlorinated Rubber Topcoat.

• Finish: Matt

• Colour: Grey

• Coverage: Approx. 10 m² per litre (depending on surface and application)

• Pack Sizes: 1 L, 2.5 L and 5 L

• Touch Dry: 30 minutes @ 20 °C (typical)

• Recoat Time: Minimum 8 hours

Designed for use in demanding marine and industrial environments where long-term protection is essential.

Surface Preparation

All surfaces should be clean, dry and free from grease, oil, and contaminants.

• Bare Steel: Abrasive blast to SA 2½ where possible. If blasting isn’t practical, use mechanical cleaning; hand preparation is not sufficient. Degrease with solvent prior to de-rusting.

• Existing Coatings: Clean, degrease and lightly abrade to provide a key. Remove all loose or flaking paint and treat exposed metal as new steel.

• Wood & GRP: Lightly abrade, remove dust and ensure the surface is fully dry.

• Maintenance Work: Remove marine growth, oil and grease; high-pressure wash with fresh water; feather back edges and spot prime any bare areas before applying a full coat

Directions for Use

1. Mix thoroughly before application.

2. Apply by brush, roller or airless spray.

3. If spraying, use a 0.017"–0.021" tip at approx. 1900 psi (130 bar).

4. Thin if required with up to 5 % Teamac Thinners 16.

5. Apply at approx. 100 microns WFT to achieve 38 microns DFT.

6. Allow to dry at least 8 hours before overcoating.

7. Overcoat with Teamac Chlorinated Rubber or other compatible systems.

8. Ensure good ventilation during application and drying. Avoid high humidity or low temperatures.

Technical Data

Data Sheets

Teamac Metaclor Underwater Primer - TDS

Teamac Metaclor Underwater Primer - MSDS