Safely use these balls in food and pharmaceutical environments to clean screens in vibrating sifters or to act as a seal in pumps and check valves. They're polyurethane with metal and chemical additives, which means they absorb shock and resist abrasion like rubber and are strong like plastic but also include additives that make them detectable on hygienic lines. These additives will set off metal detectors, X-ray machines, and magnetic traps if these balls fall into food. This helps you comply with Hazard Analysis and Critical Control Point (HACCP) programs. These balls do not contain BPA or plasticizers, so they won’t cause contamination or impart tastes or odors to products. They are FDA compliant for direct contact with food.

Commonly used in molding applications such as injection molding and extrusion, these foaming agents reduce weight, warpage, and sinks in finished parts. Mix them into resin as 0.5-1.5% of the total mixture—by decreasing the amount of resin needed to make a part, they help reduce costs. They also lower the melt viscosity of resin so that it can be processed at low temperatures, which reduces cooling times, cycle times, and the risk of heat degradation. These foaming agents are compatible with most plastic and rubber resins. All are FDA compliant for direct contact with food.

Agents with a 310° F or 325° F activation temperature are for use with low-melt-temperature resins such as polyolefins, polystyrenes, and thermoplastic elastomers. Agents with a 400° F activation temperature are for use with high-melt-temperature resins such as polycarbonates and polyamides.

Microfine agents produce smaller bubbles and a tighter cell structure than other foaming agents. They improve the appearance of your final product and keep its mechanical properties consistent throughout. They’re often used to create parts that have thin walls.

Fine agents produce more gas than microfine agents. Use them to ensure uniform foaming when molding bigger parts.

These pellets resist swelling when exposed to water, making them suitable for use in wet environments. Melt and mold them into desired shapes. Pellets are made from virgin resins and are compatible with various types of molding equipment such as injection molders and 3D printers.

Choose HDPE pellets for general-purpose applications such as protoyping.

HoPP and CoPP pellets are harder than HDPE pellets, so they won't scratch as easily. HoPP has greater tensile strength than CoPP. However, CoPP has better impact resistance. It resists impact even at low temperatures.

Absorbing impact without cracking or breaking, these plastic pellets are molded into parts that endure bumps, scrapes, and falls. Use them with injection molders, 3D printers, and other molding equipment.

HIPS pellets are easy to thermoform, so they’re good for signs, packaging, and other light duty applications.

ABS pellets are easy to thermoform, have good impact resistance at low temperatures, and have more chemical resistance than those made of HIPS or polycarbonate. They’re also more impact resistant than HIPS pellets. Use them to make storage cases, tote trays, equipment housings, and protective gear.

PVDF pellets are flexible, weather resistant, and have the most chemical resistance of all these materials. PVDF is also known as Kynar.

Polycarbonate pellets handle higher temperatures than any of these other materials, but they’re more difficult to thermoform. Clear in color and a lightweight alternative to glass, they’re often used to make windows, machine guards, and instrument covers.