R5 Toughened has outstanding toughness and resistance to micro-cracking. This proprietary blend overcomes a general deficiency in metal surface bond strength and offers up to a massive 30-fold increase in peel strength. R5 should be used in the most critical applications including bonding aluminium sail track to carbon masts, bonding pre-fabricated composite goosenecks or spreader roots to carbon masts and bonding pre-fabricated components into pre-preg structures. Kit Sizes 750Ml Kit 1.5L Kit 6L Kit 30L Kit