Rahco is a Custom Rubber Molder, each design is treated as a new entity, for no part is exactly the same. Each intricate detail is a priority. In order to guarantee the best design, we use traditional methods such as compression and transfer, as well as the latest computer controlled injection processes when creating a mold. While keeping economics in mind, we can design the system that best suits your application. Whether the quantities are small or large, we are here to service your needs.

Custom Molding
Large Diameter Irrigation Water Control Pivots, Natural Rubber, Injection Molded
Mirco Parts, Valves, O-Rings, Packings, Rubber Check Valves, Pinch Valves, Press in Place Seal, Umbrella Relief Valve, Grommets, Isolators, Bushings, Flow Control Critical Seals, FKM, Viton, Nitrile, HNBR, EPDM, Fluorosilicone

Rubber Molding Processes

Manufacturing Technologies

  • Assemblies: Auto & Manual
  • Flashless | Wasteless Molding Process
  • Precision Slitting
  • Chemical Bonding
  • Adhesive Application
  • Substrate Preparation
  • Secondary Operations: Special Packaging and Kitting
  • Quality Assurance

Laboratory Testing

Test Method: ASTM

  • Rheology: D6204
  • Hardness: D2240
  • Tensile: D412
  • Elongation: D412
  • Modulus: D412
  • Tear: D624
  • Compression Set: D395
  • Volume Swell: D471
  • Oil Age: D471
  • Flex Test: D430