Cromar Hydrosil is a high-performance, professional-grade silicone roof coating designed to protect and enhance all types of existing roofing substrates. This fluid-applied coating offers superior durability and long-term resistance to extreme weather conditions, including UV rays, rain, snow, and fluctuating temperatures.

With Hydrosil, you get exceptional coverage—over one and a half times more than standard polyurethane coatings—making it both cost-effective and efficient. Its fast-curing formula creates a tough, watertight, and weatherproof barrier in just 24 hours, while still allowing vapour to permeate, preventing trapped moisture. It also offers excellent UV resistance and can withstand foot traffic within a day of application.

This 100% silicone, moisture-curing coating requires no primer and is self-levelling, providing a quick and easy single-coat application. It is also highly durable and unaffected by standing water, ensuring long-term protection for your roof.

The coating dries to a sleek grey finish, which not only improves the appearance of your roof but helps keep surfaces cooler, extending the life of the roofing system.

Available in two tin sizes:

• 18.9L, providing coverage of up to 23m².
• 3.78L, providing coverage of up to 4.7m.

Key Benefits:

• Single-coat application with no primer needed.
• Fast curing and foot-traffic ready in 24 hours.
• High coverage rate (1.5x that of standard PU coatings).
• Resistant to extreme weather, UV, and standing water.
• Durable, long-lasting protection.

Ideal for restoration and maintenance of various roofing substrates, Cromar Hydrosil offers a reliable, long-term solution for roof protection and performance.