Operator at a rotational molding machine on the Fountain, Colorado floor
The rotational lining machine arm
The cryogenic grinding line
Machining a part on the mill
Welding in the clean room
The paint booth

Custom engineered polymers · Fountain, Colorado · Since 1963

Other suppliers said no. That's where we start.

RMB is the custom thermoplastics manufacturer that formulates the material and makes the part under one roof — rotational lining, rotational molding, laser sintering, and custom compounding — for engineers whose parts can't fail.

  • AS9100 Rev D
  • ISO 9001
  • ITAR
  • CMMC Level 2
  • ASME
  • ISO Class 7 Cleanroom
  • Made in the USA

The RMB Path — Problem. Polymer. Performance.

  1. Engineer reviewing an inquiry
    01

    Tell us what's failing.

    Send the application through the form, or talk directly to an engineer. Incomplete information is fine — we'll ask the right questions, and you'll hear back fast, typically the same day.

  2. Design review and material selection at the bench
    02

    We engineer the solution together.

    Material selection — or a custom formulation — plus design for manufacturability, drawn from six decades of polymer engineering. Straight answers on fit, alternatives, and trade-offs.

  3. Spark-testing a finished liner
    03

    We build it, prove it, and deliver it. Complete.

    Fabricated, lined, molded, or printed; machined, tested, certified, painted, and shipped — by one accountable partner, on the date we promised.

The problems we said yes to.

Different industries, one method: identify the material, engineer the part, prove it before it ships. Look past the industry — the material science may be your answer too.

Relined quartz-processing vessel
IndustrialRotational lining

Seamless Liner Increases Quartz Processing Vessel Service Life Over 450%

A quartz-processing vessel that wore out on a schedule was relined seamless — and its service life increased more than 450%.

Read the case study →
Offshore platform with lined flowline
Offshore / Oil & GasRotational lining

Shell Cuts Mars B Costs with RMB Products' Corrosion-Resistant Rotational Lining Solution

Corrosion-resistant rotational lining helped Shell cut costs on the Mars B deepwater program.

Read the case study →
ETFE-lined pipe on a concentrated acid line
MiningRotational lining · ETFE

ETFE Rotationally Lined Pipe Delivers Long-Term Corrosion Protection in Copper Mine's Concentrated Acid Operations

Concentrated acid service at a copper mine, protected long-term by ETFE rotationally lined pipe.

Read the case study →

See all resources →

Bring us your problem. We'll take it from here.

No project is too early or too small.