Dynatect Manufacturing
(262) 317-9191
(262) 317-9191 sales & customer service

Dynatect Ro-Lab

Dynatect Ro-Lab, formerly Ro-Lab American Rubber Co., Inc., is a custom molding company specializing in engineered polymers since 1906. Dynatect Ro-Lab is Located in Tracy, California.

Ro-Lab Custom Elastomer Components

Ro-Lab specializes in the production of polyurethane and rubber-based components that require:

  • Close tolerance molding, including RMA-A1
  • Insert molding of metals, textiles or ceramics into rubber or polyurethane
  • Accurate alignment of metal inserts and polymer
  • Custom blending and formulation expertise
  • In-house physical testing and quality control lab
  • Strict control of material composition and purity
  • Immaculate appearance, including RMA-F1
  • Varied sizes: very thin, large parts, long lengths
  • Continuous press cure for long, flat, heavy sheets


Molding Processes

We offer up front design support when you are developing an OEM prototype. We appreciate a challenge and when you involve us early, we can make suggestions regarding the part design that make it easier and less expensive to manufacture. Our goal is to supply a well-designed, functional product that meets your expectations. We can also assist with re-engineering your part and correcting any performance issues you are experiencing.

We do not sell items out of a catalog. Instead, we use our process expertise and deep polymer chemistry knowledge to develop a unique component for your application.

Rubber Custom Molding Processes

  • Compression molded rubber
  • Injection molded rubber
  • Rubber transfer molding

Hot-Cast Urethane Custom Molding Processes

  • Compression urethane molding
  • Low-pressure injection urethane molding
  • Open-cast urethane molding
  • RIM/reaction injection molding foam products

Special Processes

  • Hoses (up to 50 feet long / 12-inch diameter
  • Mandrel-formed rubber products
  • Industrial and agriculture rollers
  • Plastic injection molding


Equipment and Molding Capabilities

At Dynatect Ro-Lab, we have over 100 presses with capacities to handle large components and high volumes. We also perform in-house blending of polymers to meet customers’ durability, flexibility and elasticity requirements. Our quality control laboratory allows us to maintain strict control of material composition and purity. In addition, we have specialized equipment for continuous molding and for pressings requiring very high pressure.

More Presses For Greater Molding Options

  • 75+ rubber molding presses: capacities from 40 to 2500 tons, presses up to 80" wide, platen sizes up to 20' long
  • Polyurethane dispensing machines to 40lbs./min.
  • 23 urethane molding presses with capacities from 5 to 250 tons (compression molding); platen sizes up to 24" x 24", and oven capacities to 2880 cubic feet (20' x 12' x 12')
  • Banbury internal mixing equipment for production and testing of custom elastomer blends
  • In-house plastic injection molding capability


Design Resources

Learn more about Rubber, Polyurethane, and the advantages of each versus other materials.

Rubber 101

Types of rubber and properties to consider, specific advantages of rubber. Learn more

Cast Polyurethane 101

About cast polyurethane, properties to consider, specific advantages of polyurethane. Learn more

Polyurethane versus Plastic, Metal and Rubber

Polyurethane is a surprisingly versatile material that can be used in unique and challenging applications. Learn more about urethane advantages over alternative materials. Learn more

Elastomer Material Property Comparison & Hardness Scales

Compare material properties of Polyurethane to other Rubbers. View hardness scales for Polyurethane verses rubber and plastic. Learn more

Application Examples

See examples of rubber and urethane products in general, and market-specific solutions. Learn more

Quote Request

Fill out a guided questionnaire to collect all necessary information for a quotation. Go To RFQ Form

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