Polytek® offers a complete range of liquid mold rubber materials of varying hardness; plastics, resins, foams and other specially shaped casting materials. These mold materials consist of two-component, high-performance, room temperature-curing urethane rubber, silicone rubber, latex, and other specialty material systems. Polytek® rubber and plastic are versatile and easy-to-use in concrete, plaster, resin, foam, wax, and more. exact reproduction of the original model. Artists, sculptors, hobbyists, model makers and industrial users can all benefit from Polytek® products for accurate sculpting and rapid prototyping at an economical cost.
Polytek® 74 Series - Polytek®'s most easy-to-use and versatile mold rubber. These soft (A20) to medium durometer (A55) mold rubbers are popular in plaster molding, ceramic masters, concrete casting and art foundries. It can be cast or painted, and has matching additives.
Polytek® 75 series - better strength (hardness from A75-A90) mold rubber. Good dimensional stability, good wear resistance and long service life. Mainly used for high-demand, high-volume production concrete casting, forming and texture accurate reproduction molds, ultrasonic fixtures, etc. 190-25 can obtain different hardness (A80-A90) through different ratios, so as to obtain a wider application selection.
Polytek®81 series - high strength rubber hardness A90 or D45, excellent toughness and wear resistance, can accurately replicate the prototype, Poly 81-D45 can be CNC machined after curing. Low viscosity is easy to handle and can be adapted to different working environments. Commonly used to make molds, models, stamping tools, industrial accessories, rollers, washers, bumpers or pads, tooling fixtures, etc.
Considering the process requirements of rubber casting (such as vacuum equipment and mixing equipment, etc.), we can also perform rubber casting operations on behalf of customers, and even help customers cast rubber parts for a small amount of reproduction.
product name | hardness shore | color | mixed viscosity mpas | Operation time min/25℃ | demold time h/25℃ | application |
75-70 | A70 | brown | 3000 | 40 | 16-24 | Tooling dies, rubber parts; longer operating time |
190-25 | A85-A90 | beige | 2500 | 25 | 16-24 | Tooling dies, rubber parts CNC machining Good self-defoaming performance and long post-curing cycle
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PN9723 | A90 | beige | 550 | 20 | 16-24 | Tooling dies, rubber parts CNC machining Low viscosity, good self-defoaming performance
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75-90 | A90 | brown | 6000 | 10-15 | 16-24 | Tooling dies, rubber parts CNC machining |
81-90 | A95 | yellow | 2000 | 20 | 16-24 | Tooling dies, rubber parts CNC machining |
81-D45 | D45 | brown | 1600 | 10-15 | 16-24 | Tooling dies, rubber parts CNC machining |
SL285 | A75-D55 | brown | 2500 | 20-25 | 16-24 | Tooling dies, rubber parts CNC machining Three components can adjust different hardness |