Pecora 890NST is a one-part, neutral-curing, ultra low-modulus silicone sealant that will not stain natural stone such as marble and granite and that reacts with atmospheric moisture to form a durable, flexible building sealant. The Mason Contractors Association of America (MCAA) is committed to preserving and promoting the masonry industry by providing continuing education, advocating fair codes and standards, fostering a safe work environment, recruiting future manpower, and marketing the benefits of masonry materials. DATA SHEET BASIC USES Pecora 895 NST has been specifically designed for: • Structural glazing of glass, metal and plastic. It may also be used as a weatherseal in structural glazing applications. • Non-structural glazing applications including cap, toe and heel beads and as a weatherseal in glass to glass butt joint glazing.

• For sealing expansion and control joints in precast concrete panels, architectural and natural stone, masonry, steel, metal curtain walls, sealing of door and window perimeters, Exterior Insulation Finish Systems (EIFS), fluoropolymer and powder coated aluminum, wood, vinyl and many plastics, generally without need for a primer. 890 silicone or Dynatrol I-XL polyurethane). Since Pecora architectural sealants are applied to varied substrates under diverse environmental conditions and construction situations it is recommended that substrate testing be conducted prior to application. SPECECIFICICATATIONON DATAATA BASIC USES • Pecora 865 is designed primarily for