Ronseal Knot Block White Primer & Undercoat 750ml

Product rating
2.2 out of 5 stars
Product code:
5010214864812

Price

£16

£21.33 per L

Ronseal Knot Block White Primer & Undercoat 750ml

Product code:
5010214864812
Ronseal Knot Block White Primer & Undercoat 750ml Ronseal Knot Block White Primer & Undercoat 750ml

Price

£16.00

£21.33 per L

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  • Home Delivery Order by 7pm (4pm Saturday & Sunday) for next day delivery.
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Ronseal Knot Block White Primer & Undercoat 750ml

Product rating
2.2 out of 5 stars

£16

Ronseal Precision Finish Paint Brush

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£6.75

£22.75
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Product Details

Product Information

Apply this primer & undercoat from the Ronseal Knot Block range to interior wood, using a brush, to prepare the surface for painting. It takes 6 hours to dry and will cover Up to 12 m² per litre on average.

Features and Benefits

  • Control air pollutants by choosing products with lower solvent levels

Technical Specifications

Technical specification of Ronseal Knot Block White Primer & Undercoat 750ml
Brand Ronseal
Range Knot Block
Colour description White
Paint type Primer & Undercoat
Coverage Up to 12 m² per litre
Durability Undercoat & knot blocking in one, ensuring a longer lasting knot free topcoat finish
Drying time 6hours
Recoat time 6hours
Location Interior
Paint/Stain/Varnish base Water-based
VOC description Low
Application Brush
For use on Wood

Health and Safety

Please note that this item has additional safety or regulatory datasheets available. The product may have possible health and safety hazards covered in these documents. Refer to the container for full information and always follow the instructions.

Help & Advice

Wall Painting Calculator

Your requirements

1. What are the wall dimensions?
X
2. What are the dimensions of the windows / areas that you don't want to cover in metres?
X
3. How many doors in the room?
4. How many coats of paint do you want?

Your results

You require:

  • 00 litres of paint

This is based on a coverage of 10m² per litre of paint. Always check the coverage on the side of the tin before buying.

How to guides

How to prepare walls for painting

How to prepare walls for painting

While it can be tempting to get painting as soon as possible when you want to decorate a room, it’s worth taking the time to make sure your room and surfaces are best prepared before you begin. Getting the preparation right is crucial to achieving the perfect finish. It’ll also help to keep things neater and cleaner, and reduce the need for additional coats of paint. No paint can completely cover dirty or uneven surfaces, so tackling this at the start of the project avoids the need for extra work later on.

In this guide we’ll walk you through the most important steps to take, and show you how to;

  • Empty your room ready for decorating, and protect fixtures and fittings you aren't painting
  • Clean your walls to help paint adhere
  • Fill holes and cracks and smooth your walls for the best possible finish
  • Prime stained surfaces or those which have not been painted before

Once you've completed these tasks you should have a smooth, even surface ready to be painted.

Walls painted green with white trim

Buying guides

Buyer's guide to primers

Buyer's guide to primers

If you're painting on bare wood, plaster or metal surfaces, you'll get a better result if you use a primer first. It provides a surface which the paint can bond to and stops the paint being absorbed. Find out more what you need and for what surface.

Reviews 2.2  out of 5 stars

Ronseal Knot Block White Primer & Undercoat 750ml is rated 2.3 out of 5 by 10.
  • y_2017, m_9, d_15, h_19
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_en_GB, sid_5010214864812, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_diy
Rated 5 out of 5 by from Time saver I'm glad I bought this product, it saved me much time and effort, all done in one go. Wood knots treated, primed and undercoated in one. Good finish
Date published: 2017-09-05
Rated 5 out of 5 by from as it says on the tin, excellent excellent...............................................................................
Date published: 2017-07-24
Rated 4 out of 5 by from Good primer for difficult surfaces Bought the paint to cover dark hardwood panelling. Ordinary primer was turning yellow as it dried but this primer has stayed white. Have faith, it will dry ok but needs two coats.
Date published: 2017-01-16
Rated 3 out of 5 by from Average It doesn't do quite as well as it says on the tin.
Date published: 2017-08-29
Rated 1 out of 5 by from Rubbish!! Bought this product 2 years ago to paint new wood frames. For the last 12 months shown knots through the white paint. Now have hugebrown blobs through the white paint. Looks awful. Have to rub down and reseal all knots with something more suitable.
Date published: 2017-09-03
Rated 1 out of 5 by from Very thin and doesn't actually block knots This primer/undercoat is very thin and difficult to brush smoothly without taking it back off again. It doesn't seem to adhere to newly sanded timber too well, but it sticks to itself a bit better on the second coat. Despite 2 coats of this and then two coats of water based gloss the knots show through within a couple of months. Waste of time!
Date published: 2016-11-24
Rated 1 out of 5 by from Poor Does not work. It maybe work a month or so then knots bleed through. A far superior product is shellac based primer.
Date published: 2016-08-28
Rated 1 out of 5 by from Dreadful product! Do not waste your money on this product. Quite simply it doesn't work at all. I've followed the instructions and now all the knots are showing through my newly top coated woodwork. Utter waste of money and time.
Date published: 2016-05-19
  • y_2017, m_9, d_15, h_19
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_en_GB, sid_5010214864812, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_diy

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