The Cromar Pro GRP Hardener Catalyst Dispensing Bottle is a high-quality, 80ml capacity dispensing bottle made for the precise application of hardener catalyst in fibreglass roofing tasks. Specifically designed to meet the needs of professional tradespeople, its robust build ensures durability while its precise dispensing mechanism allows for accurate and controlled measurement of hardener catalyst. This product from Cromar, a trusted brand in the roofing industry, provides a practical solution for maintaining consistency and quality in your fibreglass roofing projects.