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Business Details
50+ Years
experience
Precision Rubber Parts Manufacturer in Torrance, CA
Coastcraft Rubber has been a trusted manufacturer of precision molded rubber parts since 1954. Founded as a small garage operation by a chemist seeking specialized rubber solutions, we have grown into a family-owned industry leader serving aerospace, medical, and industrial clients nationwide. Our expertise in rubber-to-metal bonding and fabric-reinforced diaphragms meets rigorous specifications for chemical compatibility and durability. With AS9100D and ISO 9001:2015 certifications, we maintain strict quality control through in-house laboratories and computerized inspection systems. Our Torrance, California facility houses state-of-the-art molding presses and mixing equipment to deliver custom solutions with tight tolerances.

We specialize in low-volume production runs while maintaining competitive lead times and on-time delivery. Our technical team collaborates with clients during design phases to optimize cost-effectiveness and performance. Approved by major aerospace firms like Boeing and Honeywell, we support critical applications where reliability is paramount. Continuous improvement initiatives ensure our manufacturing processes meet evolving industry standards. Backed by over six decades of experience, we remain committed to delivering precision rubber components that exceed client expectations.
Services
Rubber-to-Metal Bonding Custom Molded Parts Diaphragm Fabrication O-Ring Manufacturing Elastomer Selection
Details
  • Year established: 1954
Highlights and features
  • Family-owned since 1954 with aerospace industry expertise
  • AS9100D and ISO 9001:2015 certified manufacturing processes
  • Custom rubber-to-metal bonding for critical applications
  • Nationwide service with on-time delivery guarantee
  • In-house laboratory for elastomer formulation and testing
Associations and certifications
  • AS9100D
  • ISO 9001:2015
Services
Rubber-to-Metal Bonding
Precision rubber-to-metal bonding creates zero-leakage seals for aerospace and medical applications. We bond common and exotic combinations like Viton to stainless steel with tolerances as tight as +/- .002'. Our process ensures durability under extreme pressures (up to 500 PSI) and temperatures ranging from -65F to 500F, meeting military specifications for critical systems.
Custom Molded Parts
Custom rubber molding services produce complex components with close tolerances. Our 20-250 ton presses handle compression, transfer, and injection molding for parts up to 24" in diameter. We work with Buna-N, EPDM, silicone, and fluorocarbon materials, maintaining strict quality control through computerized optical inspection systems for aerospace and industrial clients.
Diaphragm Fabrication
Fabrication of fabric-reinforced diaphragms with variable effective areas up to 18" diameter. Our rolling diaphragms maintain constant effective areas throughout strokes while withstanding pressures as low as " water pressure. We produce flange bead seals and bonded metal backup plates to meet specific hole patterns, pressure requirements, and temperature tolerances.
O-Ring Manufacturing
Custom O-ring manufacturing using Buna-N, Viton, EPDM, and silicone compounds. We maintain extremely tight tolerances for aerospace and medical applications, producing both standard and non-standard sizes. Our in-house laboratory develops specialized elastomer formulations to meet military specifications while ensuring compatibility with various solvents and chemicals.
Elastomer Selection
Expert elastomer selection services optimize performance and cost-effectiveness. Our technical team recommends materials from over 100 proprietary formulations, considering chemical resistance, temperature ranges (-65F to 500F), and pressure requirements up to 500 PSI. We provide complete test reports to ensure compliance with aerospace and medical industry standards.
Questions
What industries do you serve?
We primarily serve aerospace, medical, and industrial clients requiring precision rubber components for critical applications.
Are you AS9100D certified?
Yes, we maintain AS9100D certification alongside ISO 9001:2015 standards for quality management systems.
Can you handle custom rubber-to-metal bonding?
We specialize in rubber-to-metal bonding for zero-leakage seals with materials ranging from Buna-N to Viton.
What service areas do you cover?
We serve Arizona, Florida, California, Texas, Ohio, and provide nationwide shipping for all our products.
Do you offer prototyping services?
Our facility supports prototype runs with complete molding presses capable of meeting tight deadlines.
How do you ensure quality control?
We use computerized optical inspection systems and maintain in-house laboratories for material testing and formulation.