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Everbuild 145 Butyl Rubber Sealant 300ml – Grey

SKU: 145GY


In stock


EVERBUILD reg; EVERFLEX® 145 Butyl Rubber Sealant is a traditional permanently plastic one component sealant based on Polybutene that provides an effective weatherproof seal in a variety of exterior and interior applications. EVERBUILD reg; EVERFLEX® 145 Butyl Rubber Sealant forms a skin in approximately 24hrs but remains permanently plastic underneath. The sealant accommodates joint movement of +/- 5% and is over paintable.


  • Single glazing of metal, concrete and wooden frames.
  • Sealing metal roof panels.
  • Pointing around soft and hardwood timber, metal and concrete/stone window and door frames.
  • Sealing pre-cast concrete panels.
  • Sealing timber sections to brick, stone and concrete; ideal for rooflines applications.
  • Sealing gaps and cracks in brickwork and stone.


  • Overpaintable.
  • Adheres to most common building surfaces.
  • Semi drying – forms a surface skin but remains permanently plastic beneath.
  • High solids formulation – excellent gap filling properties without shrinkage.
  • Good external weathering properties.




From adhesives and wipes, to expanding foam, wood treatments and bonding, Everbuild have got it covered. Everbuild are a UK based company with a worldwide presence and one of the most trusted names within the builders merchants and DIY sector. It all began back in 1994 when self confessed DIY enthusiast, David Seymour, founded Everbuild. With innovative manufacturing and the ability to adapt to market needs, Everbuild quickly established a strong position and became market leaders. Over the years, Everbuild grew quickly and their products became industry favourites, stixall, wonder wipes and forever white to name but a few. More recently, in 2013, Everbuild was acquired by Sika and a new partnership was born, Everbuild - A Sika Company. This collaboration enables Everbuild to grow their business and Sika to strengthen their UK presence, giving customers even more products to choose from. Exciting times ahead. As the UK and Ireland's largest manufacturer of sealants, adhesives, fillers and building supplies, Everbuild continue to dominate the market with an outstanding product range. They have a passion for what they do and strongly believe that users will only come back if a product is good, so that's all they make! With sheer commitment and ultimate dedication to the industry, Everbuild now serve over 70 countries so you can be sure you are making the right choice with Everbuild.
Weight 0.5 kg