SpECseal 625HD – Joint Sealant (Gun Grade) Two-part, polysulfide high movement joint sealant. FEATURES: • Tough and resilient seal • Provides permanent and uniform water tight seal • Excellent adhesion to most surfaces • Stays flexible – no brittle or cracking due to UV exposure • Pouring and gun grades for horizontal, vertical and overhead applications • Good chemical & weathering resistance • Non-toxic once cured • High resistance to ageing – Primer required – Suitable for joints from 5-50 mm wide, subject to a 10mm minimum depth of sealant – Based on a liquid polysulfide polymer which when mixed with the hardener, cures to form a tough rubber like seal
