Custom rubber parts and seals | Daoshu Industrial

Rubber parts, built to automotive standards

Rubber and rubber-to-metal parts are made by our rubber production partner in Ningbo, Zhejiang, in business since 1990 and certified to IATF 16949, the quality standard for automotive suppliers.

vulcanizing presses, from 250 to 1,600 tons

7,000 t

of rubber compounded each year, with automatic weighing

rubber compounds, from natural rubber to FKM

1990

the year our rubber partner was founded

Choose a compound by operating temperature

Typical service range and hardness for each rubber we work with. Hover or tap a row for its range and main strength.

−50050100150200250300350Shore A

VMQ Silicone−80 to 350°C30–90−80 to 350°C. Widest temperature range, resists radiation
FKM Fluoroelastomer (FKM)−20 to 250°C40–80−20 to 250°C. High heat and aggressive chemicals
EPDM −40 to 180°C30–90−40 to 180°C. Weather, ozone and hot water; UL94 V-0 grade
HNBR Hydrogenated nitrile (HNBR)−40 to 160°C50–90−40 to 160°C. Heat, oil and chemical resistance
ACM Polyacrylate (ACM)−30 to 150°C50–80−30 to 150°C. Hot oil and fuel resistance
IIR Butyl (IIR)−50 to 135°C40–90−50 to 135°C. High damping for vibration and noise
ECO Epichlorohydrin (ECO)−35 to 130°C30–90−35 to 130°C. Oil and chemical resistance
CR Neoprene (CR)−30 to 120°C20–95−30 to 120°C. Weathering; UL94 V-0 grade
NBR Nitrile (NBR)−35 to 120°C20–95−35 to 120°C. Oil and fuel resistance
TPU Polyurethane (TPU)−40 to 120°C10–100+−40 to 120°C. High strength and abrasion resistance
NR Natural rubber−40 to 80°C30–100−40 to 80°C. High elasticity and fatigue life

Operating temperature, °C

Typical ranges from our rubber partner's compound data. The right compound depends on the part, the load and the environment, so we confirm it for each project.