Polyvine Exterior Extreme Varnish

Polyvine Exterior Extreme Varnish is a high performance, water based polyurethane coating developed to protect exterior wood exposed to harsh weather and demanding conditions. It forms a tough, durable barrier that withstands rain, sunlight and heavy wear, making it ideal for decking, outdoor furniture and marine environments.

• For a hard wearing finish on wooden floors, see Polyvine Heavy Duty Floor Varnish
• For a durable clear coating for interior wood, explore Polyvine Heavy Duty Interior Wood Varnish
• Looking for a tough interior alternative with exceptional durability? Consider Polyvine Interior Extreme Varnish

Ensure all exterior surfaces are clean, dry and free from dust, grease, algae, mould and any other surface contamination before application. Do not apply to damp timber and ensure the moisture content is suitable for exterior finishing.

Bare or New Wood

1. Lightly sand the surface to smooth the timber and open the grain
2. Remove all sanding dust thoroughly using a brush, vacuum or lint free cloth
3. If required, treat bare exterior timber with a suitable preservative and allow to dry fully
4. Ensure the timber is completely dry before applying the varnish

Previously Varnished or Painted Surfaces

1. Ensure existing coatings are sound, clean and firmly adhered
2. Lightly sand the surface to create a key for improved adhesion
3. Remove all sanding dust prior to application
4. Where coatings are flaking, peeling or unstable, strip back to bare wood using a suitable paint stripper, then sand smooth and clean before varnishing

Always carry out a test area before starting your project to confirm compatibility and final appearance. Follow the instructions on the container at all times and check weather conditions before application.

Do not apply to damp timber or if rain, frost or heavy dew is expected. Apply only in dry conditions and avoid direct hot sunlight where possible.

1. Stir thoroughly before and during use. Do not shake
2. Apply using a good quality synthetic bristle Brush or suitable roller. For spray application, follow manufacturer guidance
3. Apply 2 to 3 thin, even coats for best performance
4. On porous or new timber, dilute the first coat with up to 10 percent water if required
5. Allow each coat to dry fully before applying the next
6. Do not apply in damp, cold or excessively humid conditions

Please note: On surfaces exposed to frequent handling or contact, Polyvine recommends two coats of satin varnish beneath a thin final coat of dead flat varnish. The satin layers provide greater chemical resistance, giving a more durable matt finish than dead flat varnish used alone.

Cleaning Equipment

Clean brushes, rollers and spray equipment immediately after use with warm soapy water. Remove splashes while still wet using a damp lint free cloth.

Regular Cleaning

Surfaces finished with Polyvine Exterior Extreme Varnish should be cleaned periodically using a soft brush or cloth with mild soapy water to remove dirt and surface contamination. Avoid abrasive pads, harsh cleaners or aggressive pressure washing, as these may damage the protective coating. Inspect exterior surfaces regularly and recoat when signs of wear become visible to maintain long term protection.

What are the dry and cure times of Polyvine Exterior Extreme Varnish?

Polyvine Exterior Extreme Varnish is touch dry in approximately 1 hour and can normally be recoated after around 4 hours. It reaches full cure in approximately 16 hours at average conditions of 20°C. Always allow longer in cooler or humid conditions.

How many coats of Polyvine Exterior Extreme Varnish are required?

For best performance, apply 2 to 3 thin coats. On new or porous timber, the first coat can be diluted slightly to aid penetration and adhesion.

Can Polyvine Exterior Extreme Varnish be used on decking?

Yes, it is suitable for exterior timber including decking. Ensure the surface is properly prepared and apply the recommended number of coats for optimal durability.

Is Polyvine Exterior Extreme Varnish suitable for marine environments?

Yes, it is designed to withstand demanding exterior conditions and is suitable for marine and high exposure environments when applied correctly.

Can it be applied over existing paint or varnish?

It can be applied over fully cured, sound and well adhered coatings. Lightly sand to create a key before application and always carry out a test area to confirm compatibility.

What temperature should it be applied in?

Apply in dry conditions and avoid cold, damp or excessively humid weather. Do not apply if rain, frost or heavy dew is expected.

Can Polyvine Exterior Extreme Varnish be applied with a roller?

Yes, it can be applied using a high quality synthetic brush, suitable roller or spray equipment. Avoid high pile rollers to maintain a smooth, even finish.

Is Polyvine Exterior Extreme Varnish low V.O.C?

Yes, it has low V.O.C content and is water based, offering a more environmentally considerate alternative to solvent based exterior varnishes.