AS9100 Rev D · ISO 9001 · ITAR · CMMC Level 2 · ASME · ISO Class 7 · Made in the USA
(719) 382-9300
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For engineers responsible for equipment and parts that cannot fail
Custom Thermoplastics Manufacturing · Fountain, Colorado · Since 1963
The polymer problems other manufacturers can't solve. Solved.
We formulate the material and manufacture the part — under one roof. Molded, lined, or printed; tested, certified, and delivered on the date we promised.
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✓ An engineer — not a queue — responds within one business day.
IMAGE — Production photography
(lining bay or cleanroom)
60+ yrsof engineered polymers
25+ yrszero failures in concentrated acid
10–20 yrliner life where coatings last ~5
100,000sof aerospace parts delivered
The same liner, budgeted again every five years. The supplier who takes three weeks to call back. The vessel the whole turnaround is waiting on.
And the fixes you've already tried — fusion-bonded epoxy, spray coatings, loose liners — fail on a schedule too. If any of that sounds familiar, you're carrying a problem an engineer shouldn't have to carry.
IMAGE — Failed coating /
corroded vessel
Stop budgeting for failure.
Most plants treat liner and coating replacement as routine maintenance — because nobody told them a permanent option exists. Here's the difference:
The old way — scheduled failure
Coatings and loose liners on a replacement cycleThe same line item, re-budgeted every ~5 years — plus the downtime to install it.
Catalog materialsThe closest available polymer, not the right one for your chemistry, temperature, and abrasion.
Five vendors, five schedulesMetal repair, NDE, lining, recertification, paint — and you referee five versions of "not our fault."
Quotes in weeks, answers in voicemailsThe supplier who takes three weeks to call back.
The RMB way — solved once
Seamless lining, mechanically bonded to your metalEngineered for decades of service — 10–20 year liner life where coatings last ~5.
Materials we formulate ourselvesCompounded, tested, and qualified in-house. When the right material doesn't exist, we build it.
One PO. One partner. One promised date.Engineering to logistics under one roof in Fountain, Colorado — finished, documented, on time.
An engineer answersStraight answers on fit, typically the same day. Quotes in days, not months.
See How It Works
The system behind the result: The RMB Path.
Problem. Polymer. Performance.
IMAGE — Engineer taking the call
1Tell 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.
IMAGE — Design review at the bench
2We 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.
IMAGE — Finished part on the dock
3We 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.
IMAGE — Materials lab
Most manufacturers buy their materials. We invent ours.
One team owns the chemistry and the component — proprietary resins formulated, compounded, and tested in-house.
IMAGE — One-roof facility
One roof, powder to finished part.
Engineering, ASME-stamped fabrication, lining, molding, printing, machining, testing, certification, paint, and logistics.
IMAGE — Engineer on the phone
We answer. We hold our dates.
Same-day engineer response, quotes in about three business days — and if something changes, you hear it from us first.
Every five years, the same line item — or once, for decades.
In our customers' words:
"PULL QUOTE — customer voice on decades of acid service with zero failures. Sourced during the ASARCO case-study interview."
PHOTO
Name, Title
ASARCO — concentrated sulfuric acid service since 1997
"PULL QUOTE — customer voice on delivery at rate / on-dock-on-date. Sourced during aerospace case-study interviews; anonymized per consent."
PHOTO
Program lead
Tier 1 aerospace supplier
IMAGE — Acid line pipe in service
25+ years. Zero failures.
ASARCO's concentrated sulfuric acid lines — 94–98% acid at up to 300°F — have run on RMB-lined pipe since 1997. No lined pipe has ever been replaced, and the plant keeps expanding its use.
Read the case study →IMAGE — Relined quartz-processing vessel
450% longer service life.
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 →IMAGE — Rotomolded aerospace ducting
45% savings on ducting.
A Tier 1 aerospace supplier replaced heavy, multi-piece assemblies with rotomolded thermoplastic ducting — cutting cost 45% while reducing weight and part count.
Read the case study →IMAGE — Lined pieces staged for return
81 pieces lined in 2.5 weeks.
When a produced-water program couldn't wait, 81 pieces were lined with BIO-ARMOR™ and returned in two and a half weeks.
Read the case study →
Browse All Case Studies →
Start with one part.
You don't have to bet a program to find out. Prototype and single-vessel jobs are welcome — prove us on one part first. Some of our largest programs started exactly that way.
Quote One Part
IMAGE — Single prototype part /
first-article inspection
Not ready to talk? Take the homework.
GUIDE
COVER
Free Guide
Rotolining vs. FBE vs. Loose Liners: The Comparison Guide
Where each method holds, where each fails, and the lifecycle math per method — so you can defend the decision internally.
CHECKLIST
COVER
Free Checklist
The RFQ Checklist: What Your Quote Needs
The exact information that gets you an accurate lining or molding quote in days instead of weeks — prints optional.
Work email
Get the Checklist
New to the category? What is rotational lining? →
Bring us the problem. We'll take it from here.
Twenty minutes with an RMB engineer gets you a straight answer on fit — whether lining, molding, or printing even makes sense for your application, what the alternatives are, and what the trade-offs look like. Worth the call whether you ever buy from us or not. Prints and CAD welcome, partial information fine.
We deliver on the date we said
We tell you the truth about fit
Rush work gets fair pricing
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Talk to an Engineer
✓ What happens after you hit submit: an RMB engineer — not a queue — reviews your inquiry and responds within one business day.
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IMAGE — Engineer reviewing prints /
at the shop floor
RMB Field Notes
One engineering insight a month.
Failure analyses, material science, and the lifecycle math of lining vs. coating — written by the engineers, for engineers. No fluff, unsubscribe anytime.