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Polyvine Heavy Duty Extreme Varnish

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The strongest of all 'one pack' varnishes that dries in minutes and cures in 16 hours to protect interior and exterior surfaces.

Ideal for: wood, marine, worktops, doors, furniture, concrete paving, unglazed tiles, slate, brick

Finishes: Dead Flat, Satin

Sizes: 100ml, 1L, 4L

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Brand: Polyvine

Product Info

About Polyvine Heavy Duty Extreme Varnish

New water-based crosslinked polyurethane with advanced resin technology brings the highest protection single pack ever developed. For the ultimate protection of interior and exterior surfaces to an industrial level of finish.
UV blocking and absorption reduce greying, aging and deterioration of surfaces. Biocides protect against mildew, mould and fungus.

Key Features

  • Suitable for both Interior and Exterior use
  • Water resistant
  • Stain resistant
  • Abrasion resistant
  • Heat resistant
  • Chemical resistant
  • UV filter protection
  • Ultra hard
  • Microporous
  • Biocide boost
  • Nano technology
  • Water wash up
  • 16 hour cure
  • Does not blister or peel
  • Food and child safe


Remove all traces of old finishes, dirt, oil, wax and grease. These may have impregnated the surface and can cause failure. Sand in direction of the grain to provide a key. Thoroughly clean after sanding. Instructions in the technical data sheet must be followed. Ensure the product is well mixed but do not shake.


Apply 2 to 3 coats of varnish, with a good quality brush. On new softwood and porous surfaces dilute the first coat 10% with water. Lightly sand wood in between applications to remove any raising of the grain.
For a dead flat finish with high durability and stain resistance, apply two coats of satin followed by one of dead flat.

Drying Times and Coverage

Drying time: 30-60 minutes
Recoat time: 1-2 hours
Curing time: Allow 48 hours before heavy use
Coverage: 10-20 square metres per litre


Always apply to a test area before starting work. Appearance may vary according to the colour and type of wood and the number of coats. Do not apply over uncured oil paints.


Protect from extremes of temperature during storage and application.

Health, safety and the environment

  • Non-hazardous. Ensure good ventilation.
  • Keep out of reach of children.
  • Contact with eyes - wash immediately with warm water.
  • Remove excess from tools and mixing vessels before washing in warm soapy water.
  • Do not empty excess into drains or watercourses.

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