Custom Molded Rubber Parts

We use the latest technology with time-honored processes to deliver exceptional results.

Manville Rubber Products is a best-in-class producer of custom molded rubber parts, assemblies and products. We offer efficient injection, compression and transfer molding services using natural and synthetic rubbers including Silicone, Polyuerthane and FKM (Viton). Let us partner with you, from tooling design and sourcing, to compound formulation, all the way through to completion and delivery.

Our facilities are equipped with the latest technology in presses, mixers, preformers and deflashers. From high volume custom injection molded rubber parts to low volume custom compression molded parts, MRP specializes in producing your proprietary design to your exact specifications.

Manville Rubber Products can supply virtually any custom molded rubber part or rubber covered roller. All aspects of production will meet your exact requirements, including dimensions, materials, inspection procedures, traceability, packaging, labeling and any other parameters you may determine are critical.

Industry Standards

Manville Rubber is uniquely qualified to meet your exacting requirements with our in-house custom compounding capability. We develop formulations to meet rigorous industry standards including:

  • 3A
  • AMS
  • ASTM
  • Fed
  • Mil
  • NSF
  • SAE
  • UL
  • OEM

Typical Products

  • Grommets
  • Bushings
  • Seals
  • Bellows
  • Bladders
  • Sealing plates
  • Heat sealing dies
  • Valve stems & seats
  • Caps, plugs & boots
  • Bearing pads
  • Bearings
  • Gaskets
  • Strain reliefs
  • Grips
  • Vibration isolators
  • Rollers
  • Wheels (drive, feed, idler, regulator etc.)
  • Molded hose sections
  • Connectors
  • Pump Impellers
  • Oil & dust seals
  • Tadpole tapes
  • Diaphragms
  • Excluder & slinger rings
  • Flexible clips
  • Rubber bonded to metal
  • Conductive rubber


  • Butyl IIR
  • Carboxylated Nitrile XNBR
  • (Poly)Chloroprene CR
  • Chlorosuflonated Polyethylene CSM
  • Epichlorohydrin ECO
  • Ethylene Acrylic AEM
  • Ethylene Propylene Diene EPDM
  • Fluorocarbon FKM
  • Fluorosilicone FVMQ
  • Hydrogenated Nitrile HNBR
  • Natural rubber NR
  • Nitrile NBR
  • Perfluoroelastomer FFKM
  • Polyacrylate ACM
  • Polybutadiene BR
  • Polyester-urethane AU
  • Polyether-urethane EU
  • Polyisoprene IR
  • Silicone VMQ
  • Styrene Butadiene SBR

Production Methods

  • Compression Molding
  • Transfer Molding
  • Injection Molding
  • Very Large Parts Molding
  • Liquid Casting
  • Roll Building & Grinding
  • Cryogenic Deflashing
  • Water-Jet Cutting
  • Lathe Cutting
  • Die Cutting
  • Hand Fabrication
  • Full Material Traceability
  • ISO9001:2015 Certified

Trust Manville Rubber to deliver as promised.

We work closely with our customers to identify key requirements. Only then do we identify the best production method, material formulation and tooling design. If you would like help scoping out your next custom molded rubber project, please get in touch. We look forward to working with you.