Polyurethane materials are used in elevator wheels and underground mines, with a UL94 flame retardant rating of V0 and a limit oxygen index (LOI) greater than 28. However, polyurethane is flammable. To improve flame retardancy, Polywin Chemical adds non-reactive flame retardant filler and reactive flame retardant polyol. At the same time, the synergistic effect of different flame retardants is used to achieve better flame retardancy in the same filling amount.The typical FR grade prolymer of Polywin Chemical is E95FR.

Polyurethane elastomer is a type of polymer material between rubber and plastic, with a wide variety of raw materials, a wide range of formula adjustments, and a wide range of hardness.

Under normal circumstances, ordinary polyurethane elastomers have good resistance to grease and non-polar solvents, and can withstand weakly polar solvents. However, in polar solvents such as ketone solvents, ordinary polyurethane elastomers swell excessively and exhibit greater brittleness or surface stickiness, thereby losing its practical value. Solvent resistant polyurethane elastomer is a type of functional polyurethane elastomer widely used in industries such as photovoltaic glass coating rollers, printing rollers, screen printing scrapers, wood floor painting, and shoe material printing. This type of polyurethane elastomer has moderate strength and low hardness, as well as good solvent resistance.

Polywin flexibly adjusts the formula for different application scenarios, adopts unique molecular design, and develops a series of solvent resistant polyurethane product systems with different hardness. Specific products include S1155, VS1155, LS90, SM1130, and Anti solv-40A.

S1155: The hardness range is 45-55A, suitable for industries such as printing rollers and color steel coating rollers etc.

VS1155：The hardness range is 45-55A, which is used in industries such as printing rollers, color steel coating rollers, and conveyors,etc. It is an upgraded version of S1155.

LS90：The hardness range is 40-60A, used in the printing industry.

SM1130：Hardness range of 60-80A, used in industries such as wire mesh scraper.

Anti-solv 40A：Applied to photovoltaic glass coating rollers.

Compared to our competitors, Polywin provides more technical solutions, Vibrathane 6007 is suitable for limited working environments.