Sentinel GRP Roof Catalyst Hardener 5kg

Sentinel GRP Roof Hardener – Product Overview

This Hardener is a reliable curing agent essential for the proper application of GRP roofing systems. Compatible with both resin and topcoat, this methyl ethyl ketone peroxide (MEKP) hardener ensures effective curing across various weather conditions.

Available in 1kg dispensing bottles and 5kg bulk containers, it offers flexibility for small repairs or larger trade roofing projects. Simply mix between 1% and 4% by weight, depending on temperature and working time. Whether you’re applying Aqua GRP Resin or Topcoat, Sentinel Hardener guarantees a fast and durable set, allowing for a weather-resistant, long-lasting finish.

Applications of Sentinel GRP Roof Hardener

• Used to cure both GRP roofing resin and topcoat
• Ideal for domestic and trade roofing installations
• Suitable for flat roofs, garages, dormers, and garden buildings
• Adjustable curing ratio based on temperature (1–4%)
• Trusted by roofing professionals across London

Delivery in and Around London

We deliver to:

• All areas of London: Westminster, Islington, Hammersmith, Hackney
• Wider Greater London: Harrow, Bromley, Sutton, Kingston
• Nearby counties: Kent, Surrey, Essex, and Hertfordshire

Order confidently for same-week dispatch. Perfect for builders, roofers, or DIY users needing consistent supply.