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 →
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
Start with your world.
Every industry asks the material a different question.
Pick yours — we'll take it from there.
Aerospace & Defense
Weight, flammability, and traceability — on parts that have to fly.
Explore
Chemical Processing
Concentrated acids and caustics at temperature — without re-lining every five years.
Explore
Oil & Gas
Saltwater, brine, and microbial corrosion that eats through steel.
Explore
Mining
Sulfuric acid service where liners fail and downtime is billed by the hour.
Explore
Semiconductor & High Purity
Contamination-free fluid handling, molded and assembled in an ISO Class 7 clean room.
ExploreMost manufacturers buy it off the shelf. We engineer ours.
RMB formulates the polymer and manufactures the part. Nine times out of ten, your problem is a materials problem: temperature, pressure, chemistry, purity. We formulate, compound, and grind our own resins — then build the part from them.
Explore materials →
Material family
Fluoropolymers
PFA, ETFE, PVDF — chemical resistance at temperature.
Material family
Polyolefins
HDPE, polypropylene, and engineered blends — including RMB BIO-ARMOR™.
Material family
Additive Manufacturing Grades
Nylon 11, PA12, PEEK / PEKK, PVDF — flight-ready sintering and SLA grades.
Material family
Custom & Engineered-to-Spec
Don't see it? Compounded, ground, and engineered to your requirement.
The RMB Path — Problem. Polymer. Performance.
-
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.
-
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.
-
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.
How we solve it.
The material decides the method. Whichever it is, it's made here, tested here, and shipped under one PO.
-
Rotational Lining
Seamless bonded liners for pipe, fittings, and vessels — chemical resistance with no weld seam to fail.
Learn more → -
Rotational Molding
Complex, seamless thermoplastic parts: tanks, ducts, fittings, and high-purity vessels.
Learn more → -
Additive Manufacturing
Production-grade laser-sintered and SLA-printed parts — no tooling, flight-ready materials, full traceability.
Learn more → -
In-House Resin Formulation
Small-batch custom formulations the big material houses won't touch — compounded, ground, and sold to you.
Learn more → -
Plastic & Metal Welding
Certified hot-gas plastic welding and AWS-qualified metal welding — the step customers keep asking for.
Learn more → -
Turnkey Solutions
ASME steel fabrication, machining, testing, and finishing — one PO, one partner, the part arrives done.
Learn more →
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.
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 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 →
Bring us your problem. We'll take it from here.
No project is too early or too small.
Thanks — an engineer will be in touch.
