Product Description
MarineGuard Varnish is a hard wearing gloss varnish designed for use in marine environments. It protects wood and other surfaces from damage such as scuffs and scratches, as well as long term exposure to weather. Varnishing wood on boats and marine surfaces is important, as it can otherwise quickly deteriorate from exposure to water and weather.
Palatine Paints are a manufacturer of paints and coatings, not just a supplier. This is a product we have formulated and made internally, giving us an in depth technical knowledge of the varnish. We have ensured that this varnish is tough enough to withstand the conditions expected of a marine environment.
Our technical team are available by phone or web chat during our opening hours to answer any questions you may have, including queries on surface compatibility, preparation, application or the amount of varnish required for your project. You can also contact us by email, where overnight messages are checked each working morning.
If you are looking for a marine varnish in an aerosol form, please see our Yacht Varnish Spray. We also have a range of other varnishes available here. These include internal, floor and tinted varnishes.
Preparation
Surface Condition: Ensure the wood is clean, dry, and free from all contaminants such as dust, oil, grease, and wax.
Bare Wood: Sand the surface thoroughly with a fine-grade abrasive paper, moving in the direction of the grain. Remove all sanding dust before coating.
Previously Painted surfaces: Ensure it is sound and non-flaking. Abrade the surface preferably by mechanical abrasion to provide a “key” and maximise adhesion of the subsequent coating. For metal surfaces the standard grades of cleanliness for abrasive blast cleaning in accordance with BS EN ISO 8501-1[1] are:
* Sa 1 – Light blast cleaning
* Sa 2 – Thorough blast cleaning
* Sa 2½ – Very thorough blast cleaning
* Sa 3 – Blast cleaning to visually clean steel
Resinous/Oily Woods: For hardwoods or naturally oily woods (like Teak or Iroko), wipe the surface thoroughly with Palatine Methylated Spirits or a suitable degreaser to remove surface oils before applying the first coat.
Moisture Content: Ensure the wood is thoroughly dry; high moisture content can lead to blistering or a cloudy finish.
Testing: Always carry out a small test patch (approx. 100mm x 100mm) to check for compatibility and to ensure the desired finish is achieved.
Application
Mixing: Gently stir the varnish for approximately 2 minutes before use. Avoid vigorous shaking, as this can introduce air bubbles into the liquid which may appear in the final finish.
Methods: Apply using a high-quality soft-bristle brush or a short-pile solvent-resistant roller.
First Coat (Sealing): On bare wood, it is recommended to thin the first coat by up to 10% with Palatine White Spirit. This allows the varnish to penetrate deep into the timber and act as a primer/sealer.
Subsequent Coats: Apply at full strength. For a professional high-gloss marine finish, a minimum of 3 coats is recommended.
Inter-coat Preparation: Lightly sand between coats with a fine abrasive paper (and remove dust) to ensure maximum adhesion and a smooth, “mirror-like” build-up.
Technique: Apply in the direction of the wood grain. Avoid “over-working” the varnish; apply a full, even coat and allow it to level naturally.
Conditions: For best results, apply in warm (minimum 10°C), dry, and dust-free conditions. Avoid application in direct, strong sunlight or if the temperature is likely to drop below 10°C during the drying period.
Q: What is the main purpose of MarineGuard Varnish?
A: This is a hard-wearing gloss varnish specifically designed to protect wood and other surfaces in marine environments from scuffs, scratches, and long-term exposure to water and weather.
Q: Why is it important to use a marine-specific varnish on boats?
A: Wood on boats can deteriorate quickly when exposed to water and harsh weather; this varnish is formulated to be tough enough to withstand these specific conditions and extend the lifespan of the timber.
Q: What type of finish does this varnish provide?
A: It provides a durable, high-gloss finish that enhances the appearance of the wood while providing a protective barrier.
Q: What should I do if more than five days pass between coats?
A: If more than five days elapse, you should lightly abrade the previous coat before applying the next one to ensure proper adhesion.
Q: How long should I wait before power washing the painted area?
A: You should avoid power washing the surface for at least seven days after the final application to allow the coating to fully cure.
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