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Johnstones Stormshield Performance Render

Stormshield render system

Johnstone's Trade Stormshield

High Performance Wall Rendering System

A modern, high technology render system, formulated for application to traditional masonry substrates and developed using polymer modified technology. Silicone finishes off a modern render system in a wide variety of colours in addition to being highly flexible and crack resistant.

How to render a wall

  • Apply Stormshielf High Flex Basecoat to suitably prepared masonry substrates
  • Bed reinforcing Stormshield Mesh Cloth into Basecoat
  • Apply second pass of Basecoat to enclose Stormshield Mesh Cloth and to total thickness of 10mm and work to a plain faced finish
  • Apply 1 coat of Stormshielf Silicone Enhanced or Full Silione Primer to fully cured Basecoat and all to dry
  • Apply Stormshield Silicone Enhanced or Full Silicone Render in the aggregate size chosen and finish with plastic float

Get everything you need from Selco


  • High flexibility, polymer modified render system
  • Can be applied to suitably prepared masonry surfaces
  • Vapour permeable/breathable
  • High levels of crack resistance
  • Simple application and easy to maintain
  • Suitable for new build and refurbishment work
  • BBA Approved - Silicone Enhanced only
  • 30 years life expectancy and easy to clean and maintain
  • Stormshield Renders are fully compatible with Johnstone's Trade Masonry Paints

Get your trade card and buy online & in-branch today!

There’s no need to wait for your trade card to turn up. Upload your proof of business, fill out your details, and we'll give you your trade card number then and there so you can buy online and in-branch straight away.