... , easily applied one-part neutral-curing, low-modulus silicone sealant for construction applications, with a long shelf life and especially good ... ’s sample.ApplicationHX-1200 is a high-performance sealant designed for sealing, bonding and mending tasks in glazing applications. It is ... .g. EPDM, APTK and neoprene.HX-1200 is not recommended for use on natural stone, such as marble, granite, quartzite, as ...