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Bona Mega Varnish

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Bona Mega Varnish is a clear, ready-to-use, 100% polyurethane varnish suitable for heavy traffic areas within domestic and commercial environments alike. Very low odour with a solvent content of just 5%.

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  • Prices
  • Overview

Bona Mega Overview

Easy to use and highly resistant to scratches, scuff marks and wear, it's easy to see why the Bona Mega product is a popular choice with DIY enthusiasts, hardwood flooring specialists and shop fitters alike.

  • Safe, quick & easy to use
  • Can be applied with a roller, brush or floor applicator
  • Highly resistant to wear, scuff marks & scratches
  • Bona Mega has very good chemical resistance


Surfaces should be sanded back to bare wood and be free of all sanding dust, grit, dirt, oil, wax and any other contaminates. The final sanding should be done with a fine sanding disk, screen or good quality sandpaper with a sanding grit of 120 or finer.

  • Previously waxed, polished or oiled floors cannot be overcoated with Bona Mega unless sanded back to bare wood
  • Bona will not guarantee adhesion when over-coating non-bona varnishes
  • Apply Bonakemi Mega to a small test area to confirm performance and compatibility
  • For application to bare floors, a coat of Bona Prime Classic reduces recommended number of coats to 2, otherwise 3 thin coats of Bona Mega is advised


Ensure contents is shaken thoroughly and always apply to a test area first. Bona Mega is best applied in thin coats with a roller in a smooth flowing action and avoiding any excess. Ensure room temperature does not fall below 13C during application and drying.

Application to pre-finished flooring
Ideally floors should be treated with Bona Prep system in accordance with the instructions on the label. A sanding disc/screen or paper with a sandpaper grit of 150 should also be used. Apply the initial coat of Bona Mega with Bona Crosslinker.

With the Mega/Crosslinker mix, Bona Mega will normally have very good adhesion properties, however it is advisable to check the intercoat adhesion prior to overcoating. To check intercoat adhesion, apply a coat of Bona Mega to a small test area as described above i.e. sanded and clean, allow the coating to set for 3 days then scratch the treated floor surface gently with a coin. If the Bona Mega finish stays firmly attached to the test area, the adhesion is satisfactory.

Always thoroughly read the manufacturers guidance and instructions on the container or tin including any mixing and usage instructions on associated products.


Floors coated with Bona Mega can be easily cleaned and maintained with the Bona Floor Cleaning Kit or Bona Spray Mop.

For the best results, use Bona Floor Cleaner Spray or a damp mop. Never saturate wooden floors with water.

To restore the appearance of a dull floor use Bona Freshen Up from time to time. This will improve the appearance of the floor whilst still allowing further coats of Bona Mega to be applied at a later date without the need to sand the floor back to bare timber.


Bona Mega should be stored in a place where the temperature does not fall below 5℃ or exceed 25℃

Drying Time

Drying times may vary depending on room temperature and humidity - As a guide, In areas with a temperature of 20℃ and a humidity of 60%, allow 3 hours drying time between coats.

Floors will be ready for light foot traffic approximately 8 hours after the final coat has been applied. Bona Mega Varnish is fully cured in approximately a week and can then be cleaned using a damp cloth or mop with an appropriate floor cleaner. Rugs and carpet runners can also be laid after a week.

  • Reviews

Bona Mega Varnish reviews - Rating: 4.8 out of 5 stars, based on 102 reviews.

Filter:   All reviews (102)   5 stars (87)   4 stars (14)   2 stars (1)  

Karen Lewis
Used on freshly sanded old boards. After a thorough shake & the insertion which seemed to make the product pour smoothly without drips, dribbles or bubbles, this product was the easiest varnish to use. I have used other varnishes in the past & if it performs as well as others say, I will stick with it in the future too. Also the Matt finish has a slight sheen which is what I wanted.
Nigel Billinge
 Extra Matt
Quality product.
Important not to change the colour of the Oak doors so really pleased I used the Extra matt.
Jacqui Darbyshire
 Silk Matt
Great product it was a repeat purchase in any case
A top quality product , easy to apply with a mini roller and edging brush . I like the silk matt finish.
Steve Baddeley
Used it before its an excellent product
I love this product, I use it on stuff that I make,furniture, worktops and large sculptures, goes a long way as well.
Richard Heaney
 Silk Matt
Easy to use
I applied this with the floor applicator and a large brush. It goes on easily and is low odour. I'm very pleased with the result after 2 coats.
C Hardwick
 Silk Matt
Very good
A very good product. Does give you the real colour of packet flooring. Just what we wanted.
Damon Smith
 Silk Matt
Top quality product as you would expect from Bona - despatched quickly and easily
Ade Ellis
Excellent floor varnish
Easy to use water based varnish, low odour, easy to apply and leaves floorboards well protected. Would buy again.
Lovely product - worth getting the primer as well as the varnish! Good value for money and fast delivery!!
Lovely product - worth getting the primer as well as the varnish! Good value for money and fast delivery!!
Really good product for my new floor a doddle to use
Gareth Heeley
Brilliant stuff
Best filling option their is, mix with sawdust from the workpiece and fill away, you can fill large voids bigger than the 2mm limitation set by the instructions but its beat to do several applications in such cases. This stuff should be on the shelf of every workshop
Martin Harland
 Silk Matt
Great product
I was recommended to use this product by a proffessional. I found it easy to use, quick drying, and gave the professional, luxury finish I wanted. I also bought the applicator, which I would also reccommend. all in all, I am very satisfied with the product, and service from Wood Finishes Direct. I would not hesitate to use again.
Eric Clark
 Silk Matt
Easy to use, no mess and professional finish.
Liked what I read on previous reviews for Bona Mega so gave it a try. Used it on my wooden stair treads made from 200 year old pine, after stripping off old paint and stain. Three coats so far and they look great. Been in constant use since last month and not a scratch visible.
C Whitson
 Silk Matt
This is an excellent product to use. Good open time, easy to lay down over a large area. My only issue is the quantity you have to buy.
Steph Priestley
 Extra Matt
A beautiful finish to my wooden floor.
The Extra Matt provides a beautiful natural finish to my newly sanded wooden floor. Very pleased with the end result.
Andrew Thompson
 Silk Matt
Sold as a floor varnish, I use it on most of my woodwork projects.
This is a superb quick drying product, easy to apply, low odour and hard wearing.
Iris MacLachlan
Works really well, gave each floor 3 coats mixing in the crosslinker as advised. Delighted with floors, matt but mopable and though the wood has gone a little golden colour to the dry sanded look it hasn't gone yellow.
Graham Brooks
Easy to apply varnish
We had this varnish put on our new solid oak stairs on all the treads as we don't want carpet runner on the steps. The varnish went on well and brought the grain out in the wood beautiful.will have to see how the varnish wears but we expect re varnish every couple of years to keep up the protection.
Excellent product - Easy to apply and use, better than some more expensive brands!
Bona Mega - Easy to use and spreads well, no sticky mess like other cheaper varnishes. I've been using Dulux Diamond Glaze for years but at £40 more than Mega for 5 litres, I will be using Bona Mega from now on. Highly recommended.
Karen Smith
 Silk Matt
Easy to use and a lovely finish
Very pleased with the product easy to apply and dries to a good finish

per litre
3 hrs
dry time
  • Highly resistant to wear
  • Safe, quick & easy to use
  • Chemical resistant

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* Coverage can vary depending upon on the type of wood used and the amount of product applied. Litreage amounts shown above are total, not 'per coat' amounts.
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