alchimica.com Page 1/3 HYPERSEAL®-EXPERT-BuildingOne component, polyurethane-based, low modulus joint sealant ideal for use in high humidity conditions LIMITATIONS DESCRIPTION HYPERSEAL®-EXPERT Building is a low modulus expansion joint sealant, especially formulated to ensure bubble free cure even at very high temperature and humidity climatic conditions. It cures by reaction with atmospheric humidity to produce a joint sealant with a 50% joint movement accommodation factor and excellent adhesion on substrates traditionally problematic for PU sealants, e.g. glass, aluminum, steel, polycarbonate, etc. The extrusion rate and tooling of the sealant remain the same throughout a very wide range of temperature and humidity conditions. • Not recommended for direct application on unsound substrates. In this case, the substrate must be primed with MICROPRIMER-PU, which will reenforce the concrete and produce a strong durable substrate for sealant application. • Highly porous substrates, dusty surfaces or poorly compacted concrete, must have their porous bond area surfaces thoroughly sealed to avoid the possibility of air bubbles being blown into the uncured sealant if the substrate temperature rises. • Not recommended for direct UV exposure. Sealant must be over painted after full cure with a good quality acrylic or polyurethane paint. • ISO-11600, • Type F - class: 25LM, • DIN-18540-F, • ASTM C920, • U.S. Federal Specification TT-S-00230C, • Type II Class A. FEATURES & BENEFITS RECOMMENDED FOR Sealing joints in: • in-situ concrete, • precast concrete panels, • brick and block work, • water tanks and swimming pools, • metal frames, • aluminum windows and panels, • irrigation channels, • glass, • granite & marble. • No bubbling/swelling upon curing in difficult climatic conditions. • Excellent Thixotropy • Excellent adhesion on almost any type of surface, with or without the use of special primers. • Excellent extrusion, tooling and storage stability over wide range of climatic conditions. • Low modulus, joint movement accommodation 50%. • Microorganism and fungus resistant. • Excellent heat resistance, suitable for application where exposure to temperatures >60°C take place. • Resistance to cold: The sealant remains elastic even down to -40 oC. Certified quality, environmental and occupational health & safety management systems: ISO 9001/14001 & ISO 45001.

HYPERSEAL®-EXPERT-BuildingAPPLICATION PROCEDURE CONSUMPTION Linear meters per 600cc sausage: Clean joint thoroughly, and ensure that no oil, grease and wax contaminants, silicone remains are present. For many applications, primer is not required. In the case of application on very porous substrates, bond area surfaces thoroughly to avoid the possibility of air bubbles being blown into the uncured sealant if the substrate temperature rises. The recommended primer is MICROPRIMER-PU. Apply backing material such as open cell polyurethane or a closed cell polyethylene backing rod. Although both types...

HYPERSEAL®-EXPERT-Building TECHNICAL SPECIFICATIONS NONE OF OUR PUBLISHED INSTRUCTIONS AND SPECIFICATIONS, IN WRITING OR OTHERWISE, ARE BINDING EITHER IN GENERAL OR WITH RESPECT TO ANY THIRD PARTY RIGHTS, OR DO THEY RELIEVE INTERESTED PARTIES OF THEIR DUTY TO SUBJECT THE PRODUCT TO AN ADEQUATE EXAMINATION OF ITS SUITABILITY. IN NO EVENT WILL ALCHIMICA S.A. BE RESPONSIBLE FOR DAMAGES OF ANY NATURE, WHATSOEVER, RESULTING FROM THE USE OF OR RELIANCE UPON INFORMATION OR THE PRODUCT TO WHICH INFORMATION REFERS. ALCHIMICA S.A. RESERVES THE RIGHT TO CHANGE AT ANY TIME THE PROPERTIES OF ITS PRODUCTS....