Polyvine Heavy Duty Extreme Varnish

Polyvine Heavy Duty Extreme Varnish

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Wood type and application can vary coverage

£10.28 - £143.06
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A heavy duty water-based polyurethane varnish for interior and exterior use. Perfect for wood, concrete, tiles & brick.

Features

  • A heavy duty water-based polyurethane varnish for interior and exterior use
  • Perfect for wood floors, worktops and furniture
  • Provides very high heat resistance
  • Suitable for concrete, unglazed tiles and brick
  • Resistant to mould, mildew and fungus
  • Contains UV filters to protect against sun damage
  • Fast drying, fully cured in just 16 hours
  • Low V.O.C
Brand
Drying time
hr
Coverage
Up to 15 m2 per litre
No. of coats
3
Size
100ml 1L 4L
MPN
Please Select Size/Option
GTIN
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Overview

Overview

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Polyvine Heavy Duty Extreme Varnish is the ultimate water-based varnish. Cross-linking polyurethane with enhanced resin technology, this varnish is perfect for most interior and exterior wooden surfaces, even up to industrial level. Perfect for wooden floors, wooden panelling, worktops, doors and wooden furniture. It can also be used on concrete paving, unglazed tiles, slate, brick and much more. Re-coatable in just 30 minutes and fully cured after just 16 hours. Contains UV filters to combat wood greying and deterioration. Also contains biocides to protect substrate surfaces against mould, mildew and fungus.

Please Note: This product is not suitable for use on exterior bare Oak.

Preparation

Preparation

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Ensure that surfaces to be varnished are clean, dry and free from dust, dirt, grease, wax, polish and any other surface contaminants.

Bare or New Wood

  1. Fill any gaps or minor imperfections in the wood with a suitable wood filler
  2. Lightly sand bare or new wood to provide a key
  3. Take care to remove all traces of sanding dust prior to varnishing
  4. Degrease wooden surfaces with a lint-free cloth dampened with Methylated Spirit if required

Previously Painted Wood

  1. Newly painted wood should first be sanded to provide a key
  2. Heavy Duty Extreme Varnish should not be applied over uncured oil-based paint as this may cause discoloration
  3. Older painted wood, where the paint itself may fail, should be stripped using a hot air gun or a suitable paint stripper, then sanded and cleaned prior to coating with varnish
  4. When applied over an emulsion / latex paint, it is possible that the varnish could draw certain stains through the paint which were not otherwise visible. In this case a dedicated stain sealer should be used

Concrete

  1. Thoroughly clean the surface, removing all moss, mould and lichen, carbon deposits, oil stains and airborne dirt
  2. Wash the paving with a pressure washer with the pressure between 2500 - 3000 psi and a spray lance, turbo-jet nozzle or similar specialist rotary attachment designed for cleaning concrete. Alternatively clean surface manually with a high strength patio cleaner and a stiff scrubbing brush
  3. Allow to dry thoroughly
  4. Clean paving with a suitable Biocidal Wash Treatment with a low pressure sprayer, covering the entire surface and allow it to dry without rinsing it out

Application

Application

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Always do a test area before starting any project to assess product suitability and final finish. Follow the manufacturer's instructions on the container at all times.

Polyvine Heavy Duty Extreme Wood Varnish can be applied by synthetic bristle brush, roller or spray applicator.

  1. Ensure the product is well mixed. Do not shake
  2. On porous surfaces dilute the first coat with 10% water
  3. Thinly apply 3 coats of varnish using your chosen method
  4. Allow 30-60 minutes before lightly sanding between coats
  5. Product will be fully cured after 16 hours but allow 24 hours before full use

Please note: Where a 'dead flat' finish is required, Polyvine recommend that surfaces are first treated with 2 coats of satin varnish and then finished with a thin coat of 'dead flat' varnish. The 'satin' varnish in this range is chemically more durable than the 'dead flat'. This provides a more durable finish than using 'dead flat' on its own for all coats.

Cleaning Equipment

Application equipment can be cleaned using soap and water before the varnish dries. Wipe any excess off surfaces with a damp, lint-free cloth. Any dried deposits will need a paint stripper to remove them.

Aftercare

Aftercare

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Regular Cleaning

Surfaces coated with Polyvine Heavy Duty Extreme Varnish can be wiped clean with a dampened lint-free cloth or with a dedicated wood cleaner. Never soak wooden surfaces with water or use harsh cleaning chemicals as these can damage or degrade the finish.

F.A.Q.

F.A.Q.

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Is Heavy Duty Extreme Varnish a hard, durable finish suitable for dog claws and for floorboards which are mopped regularly?

This is a very durable tough finish. For best cleaning results which help to look after your flooring consider a good quality Floor Mop and Cleaning Solution.


Does a dead flat finish on oak mean no shine to the finish? Will I need a primer?

The Dead Flat has a very low sheen to it, meaning the least light reflectance of them all. The Polyvine Heavy Duty Extreme Varnish does not require a primer to be used. Please note- When you are after a matt sheen, we recommend you apply 2 coats of satin followed by 1 coat of dead flat for a more durable finish.


I want some UV resistance. Can I use this to seal acrylic paintings?

Polyvine Decorators Varnish is best suited for this task. This also contains UV filters to resist colour fade,


Is Heavy Duty Extreme heat proof for coasters? Is it also suitable for outdoor ornaments?

The Extreme Varnish has very high heat resistance to it. As one of the best on the market, it can cope with approximately 40-50 degrees temperatures without it effecting the coating, making it a great choice for coasters.

The Heavy Duty Extreme Varnish can be used on exterior projects but it would depend on the substrate of the ornaments as to whether this would be suitable. Why not call our Woodcare Experts to discuss your options on 01303 213838.


Would Polyvine Extreme be good for outdoor terrace pots?

It can be used on concrete paving, unglazed tiles, wood, slate, brick and much more. It should adhere to terrace pots if they are one of the above or terracotta.


Can Heavy Duty Extreme be used to seal wallpaper?

We would recommend Polyvine Decorators Varnish instead as this has been specifically designed for this purpose.


Can Heavy Duty Extreme be used on Rattan Furniture?

The Extreme Varnish can be applied to a wide range of substrates, but it has not been specifically tested on Rattan. It is certainly worth a test area to find out.


Is the Polyvine Extreme Varnish waterproof?

Polyvine's Heavy Duty Extreme Varnish puts a water-resistant film over the surface of the substrate. As much as it will resist water damage, if water is left on the surface for a prolonged amount of time it will eventually degrade the coating.

Reviews

Reviews

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6 customer reviews
4.9/5.0
based on last 18+ months
5 stars
5
4 stars
0
3 stars
0
2 stars
0
1 star
1
5/5
Very good product, easy to apply
This product is very easy to use. Has a really good finish. Very good on oak that has greyed, sand down and apply this and it keeps the colour without discolouration to the wood.
Ms E Ashbridge. Satin, 1L (15/10/24)
5/5
Fine, clear varnish
Excellent, easy to apply. Used to touch up the odd knock on my outdoor furniture. Helpful customer service. Would highly recommend the company for that alone.
Barbara Rochelle. Satin, 100ml (30/07/23)
5/5
Excellent Product
Expensive but a small amount goes a long way. Easy to apply and gives great long lasting finish.
Steve. Satin, 100ml (24/07/23)
1/5
Thick and patchy
Only good thing is that it dries quick. Cant roll it on and leaves lines when brushed. (Also not great for wooden floor) First poly that you should not shake before use.
Christiaan Kotze. Satin, 4L (31/03/23)
5/5
Excellent in application with a perfect finish
I purchased this product with the intention of varnishing home made fishing floats, an unusual application. This I have done but due to the restrictions I have been unable to test the product where said fishing floats would be submersed in water for long periods and at variable temperatures. The product should work but until I can carry out significant testing over a period I cannot comment further. What I can say is that the staff WFD were extremely helpful (regardless of the product application!) and did all they could to offer a suitable product. In fact, they came up with the product as a possible answer but couldn't accept responsibility as to suitability.
Anthony Collins. Satin, 100ml (04/03/21)
5/5
Brilliant! 👍
It’s a great varnish to use, quick drying with really good adhesion to previously varnished surface- in this case on maple parquet. I brushed 3 coats of the polyvine (after I had prepped the old varnish) and after 3 months wear the floor still looks great - really pleased with the product 👍
Paul Cook. Satin, 4L (26/08/20)