Water Repellent

Invisible waterproof protection for roof tiles

Super Hydrophobic

Our Water Repellent is an external super hydrophobic clear coating which uses the latest nano technology to reduce moisture ingress in mineral building surfaces. Once applied the treatment chemically reacts and actively bonds to the surface and rainfall will no longer be absorbed, instead the surface will repel water, causing the water to form beads that simply run off, keeping the surface dry. It is designed to not change the appearance of the roof tiles, it simply allows the roof tiles to maintain their natural beauty & resist weathering long-term. 


It extends the life span of all mineral building surfaces including roof tiles by slowing down the ageing or breakdown process. It achieves this by preventing weathering, frost damage and salt efflorescence that can cause the loss of structural strength in roof tiles. 

Highly Breathable

Water Repellent has no restriction on air and moisture escaping the surface. It lines the pores of the substrate rather than sealing them, allowing water vapour to naturally breathe. It has an SD value of 0.03, which far surpasses the 0.50 which is considered breathable. 

Self Cleaning

Roof tiles that have been treated remain clean andattractive as dirt is washed away with rainfall, repelling dirt and making the roof tiles self-cleaning. 

  • Helps to prevent discolouration and salt efflorescence 
  • Makes it difficult for the growth of algae, lichens or moss on the roof tiles 
  • Slows the ageing of tiles  
  • Unaffected by UV rays 

Key Features

  • Manufactured in Germany using the very latest nano technology
  • Creates a super hydrophobic surface on roof tiles
  • For use on mineral building substrates mineral such as concrete, clay,natural stone, slate and terracotta
  • Comes with a 10 year guarantee & a 25 year proven performance
  • Dries clear & does not alter the appearance of the tiles
  • Creates a self-cleaning surface
  • Highly breathable
  • Prevents discoloration, efflorescence & frost damage

Quality Standards

Water Repellent has undergone independent testing & has been proven to meet the following Quality Standards; 

  • EAD 040287-00-04:2018 – 25 year performance 
  • DIN EN ISO 53054 – tensile strength 
  • DIN EN ISO 7783-2 – water vapour permeability 
  • DIN EN ISO 1062/3 – water impermeability 
  • DIN EN ISO 4624 – pull-off test for adhesion