We would like to welcome you to our new website. In our continuing effort to meet your needs as our valued customer, we have created this website to give you our latest product information. We are looking forward to servicing you with the speed of the internet.

Main Office and Plant


1305 West Brooks Street
Ontario, California 91762
Phone (909) 984-0200
FAX (909) 984-2983

Subsidiary Plant


1950 East McKinley Hwy.
Mishawaka, IN 46545
Phone (574) 259-2340
FAX (574) 259-2342

CUSTOM PLASTICS, INC. has directed its efforts to providing proprietary products for the Roto Molding Industry. We have also developed certain items for the Recreational Vehicle Industry which depends on the roto molding industry for considerable production.

CUSTOM PLASTICS has established itself as being responsive to all special requirements that will aid its customers in gaining an advantage in competitive pricing.

  • We try to maintain a balance between proprietary items and custom items. This is a healthy situation for growth.
  • We have in house tool design which minimizes lead time.
  • We maintain our own machine shop for mold and tool repair and use five local tool shops for new tooling. We are located in a very competitive market for new tooling for our custom and proprietary products.



Fittings | Driving Tools | Caps | Bulkhead Fittngs | Grommets | Tank Valves

Lick Wheels | Covers | Special | Process | Ordering | Conditions

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