Applications
Texin 392A resin is characterized by high mechanical strength, improved hydrolysis resistance, low temperature flexibility and good chemical resistance to oils, greases and solvents. Typical applications of Texin 392A include toothed belts, profiles, seals and non-reinforced hoses. As with any product, use of Texin 392A resin in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.
Storage time
Texin thermoplastic polyurethane resins are hygroscopic and will absorb ambient moisture. The resins should remain in their sealed containers and stored in a dry area. Storage temperatures should not exceed 86°F (30°C). Unused resin from opened containers, or reground material that is not to be used immediately, should also be stored in sealed containers under cool and dry conditions.Prior to processing, Texin 392A resin must be thoroughly dried for a minimum of 4 hours in a desiccant dehumidifying hopper dryer to a moisture content of less than 0.03%. Hopper inlet air temperature should be 190-210˚F (88-99˚C), the inlet air dew point should be 0˚F(-20˚C) or lower.Where end-use requirements permit, up to 20% Texin resin regrind may be used with virgin material. Regrind material must be generated from properly molded/extruded parts, sprues, runners, trimmings, and/or films. Degraded or discolored material may not be used for regrind. All regrind material must be free of contamination and thoroughly blended with virgin material prior to drying and processing. Finish parts containing regrind must be tested to ensure that end-use requirements are fully met.
Processing
Typical starting conditions for injection molding and extrusion are noted below. Actual processing conditions will depend on machine size, mold design, material residence time, shot size, part geometry, etc.
