One Coat Render

Pre-blended render, for single coat application


One Coat Render is a high quality, pre-blended formulation, for single coat application reducing total drying time. For use on solid substrates such as brickwork, blockwork and concrete, in moderate exposure conditions. Grey colour when dry. One Coat Render  can be used For interior and exterior use and has been formulated for single coat application, reducing the total drying time and can be over coated once fully cured. 

It is suitable for tradesmen with experience of applying render. We highly recommend downloading our detailed application instructions prior to use.



Where can One Coat Render be used?


When mixed with water one 25kg bag will cover approximately: 1.4m² at a depth of 10mm 0.5m² at a depth of 25mm.


One Coat Render should be added carefully to clean water, progressively mixing until a workable consistency is achieved. It is recommended that 4 to 5 litres of water is used per 25kg bag. To achieve the best results, use as little water as possible to give the correct workability.


One Coat Render suitable for application with concrete. Please note, poorly keyed surfaces, for example smooth concrete, or substrates of uneven or high suction should be prepared with SBR. The manufactures’ instructions should be followed when using the SBR.

Why use One Coat Render?

Additional information

Tarmac One Coat Render is a pre blended render that can be applied in one coat for patch repairs or larger rendering projects.

  • Tarmac Once Coat Render is a pre blended render, just add water to apply.
  • For easy application Tarmac One Coat Renders contain polymers.
  • Tarmac One Coat Renders can be applied with a trowel of float.
  • Suitable for use on brickwork, block work and concrete.
  • Tarmac One Coat Mortars are breathable.

One Coat Render contact


Nationwide network

UK Coverage

Tarmac is a national network of localised businesses, offering construction material supply. In addition, our building products division has a nationwide network of 19 production and distribution plants, including co-located plants with our internal quarries, which enables us to provide an efficient service across the UK.

Continual improvement

We are continually investing in new plant, manufacturing and bagging technology to ensure quality consistency and our commitment to the ‘Ultimate Manufacturing’ framework empowers us to deliver continuous operational improvement.

Promotional support

Marketing materials

Our products aren’t just easy to use, they’re easy to sell. We offer our stockists a full range of high impact support materials from point of sale materials, to yard banners and posters, not only that, our products are available in attractive, durable, rip resistant poly packaging. 

Website ready

We understand that web activity is more important than ever with many consumers now browsing your website before buying. We have a descriptive text for each of our product range, along with a library of images for you to upload to your website to enhance product listings. 


Download files individually or add multiple files to a zip folder.