Johnstone's Trade Stormshield

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
Johnstone's Stormshield Step 1 Johnstone's Stormshield Step 2 Johnstone's Stormshield Step 3 Johnstone's Stormshield Step 4 Johnstone's Stormshield Step 5

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