All manufacturers
Hi-Rel Plastics & Molding logo

Hi-Rel Plastics & Molding

Custom molded plastic components and hollow parts

Since 1984

Representative illustration of molded plastic housings and hollow containers.

About Hi-Rel Plastics & Molding

Hi-Rel Plastics & Molding provides custom plastic manufacturing from Riverside, California. Its principal offerings include injection molding and blow molding, with mold and tool development and support from initial part evaluation through production. The company also advertises rotational molding for hollow and complex plastic parts, including mold design, prototyping and secondary finishing. Its broader service range includes assembly and other finishing operations, allowing customers to discuss molded components and downstream production requirements through one inquiry route.

  • Aerospace
  • Defense
  • Automotive
  • Electronics
  • Consumer products
  • Industrial equipment
  • Medical devices
  • Research and labs

Founding year from the company's own website, Nov 6, 2026 · Industries from the company's own website, Nov 6, 2026

Services

AI illustration of injection molding.

Injection molding

Injection-molded plastic components with mold, tooling and production support.

AI illustration of blow molding.

Blow molding

Blow-molded hollow plastic components with tooling and manufacturing support.

AI illustration of rotational molding.

Rotational molding

Rotational molding for hollow and complex plastic parts, including mold development, prototypes and secondary processing.

Certifications

As Hi-Rel Plastics & Molding states them. Fabrication AI has not checked them with the issuer; ask the shop for the certificate.

  • ISO 9001
  • AS9100
  • ISO 13485

Locations

Company sources