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Adhesives and sealants must maintain stable performance in the harsh construction environment, including changing temperatures, and possible exposure to aggressive chemicals
.
To address this challenge, AGC Chemicals Americas has developed a special premium polyol for polyurethane formulations
.
Preminol and Excestar are the company's two grades of high-purity, ultra-high molecular weight polyether polyols that enhance the performance of polyurethanes for demanding, high-performance architectural applications
.
AGC has developed high-purity and high-molecular-weight Preminol and Excestar by using unique synthesis technology and polymerization process
.
Preminol has ultra-low monool content, high molecular weight of 3000-18000 and narrow molecular weight distribution
.
Preminol is used in building products such as siding sealants (cement, composite panels, and window frames); reinforced concrete wall joint sealants; wood and concrete floor adhesives; decorative and composite panel adhesives; roof sealants; and Plasticizer for silyl-modified polymer formulations
.
Excestar is a liquid polymer for silane-modified polyether sealants and adhesives with unique properties such as high flexibility, excellent heat resistance, weather resistance, coatability and stain resistance
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Excestar is especially suitable for metal roof sealants, outdoor/indoor sealants, and interior adhesives for floors, walls and ceilings
.