Is a professional grade 100% Silicone roof coating. This product is a high performance, high solids, single component, moisture cure liquid applied silicone coating. HYDROSIL Professional liquid silicone is an elastomeric yet vapour permeable membrane exhibiting outstanding weathering and water resistance for application most common roofing substrates.

• Single Coat Application
• Superior Coverage
• No Primer required
• Fast cure time
• Highly durable long term protection
• Superior Adhesion
• Self levelling
• Unaffected by standing water
• Suitable for use on most common roofing substrates
  
   
  Technical Data Sheet and application 
  https://www.cromarbuildingproducts.com/wp-content/uploads/2019/12/Cromar-Hydrosil-Silicone-Roof-Coating2.pdf