The material is the solution; the method is how we deliver it. Rotational lining, rotational molding, laser sintering, and custom compounding — with fabrication, finishing, and testing in-house, so you're not managing three vendors.
The material decides the method. Whichever it is, it's made here, tested here, and shipped under one PO.
Seamless bonded liners for pipe, fittings, and vessels — chemical resistance with no weld seam to fail.
Learn more →Complex, seamless thermoplastic parts: tanks, ducts, fittings, and high-purity vessels.
Learn more →Production-grade laser-sintered and SLA-printed parts — no tooling, flight-ready materials, full traceability.
Learn more →If the part exists — or should — bring us the business case. Capabilities here keep expanding.
Talk to an EngineerSmall-batch custom formulations the big material houses won’t touch — compounded, ground, and sold to you.
Learn more →Certified hot-gas plastic welding and AWS-qualified metal welding — the step customers keep asking for.
Learn more →ASME steel fabrication, machining, testing, and finishing — one PO, one partner, the part arrives done.
Learn more →Plus in-house finishing, ASME- and AWS-certified fabrication, ISO Class 7 clean-room assembly, and testing — one partner, one PO.
A seamless thermoplastic liner bonded to the inside of steel pipe, fittings, and vessels. No seams, no welds, no gaps for chemistry to find. We fabricate the steel under ASME certification, line it, and test it before it leaves.
Seamless, hollow thermoplastic parts — tanks, ducts, fittings, and high-purity vessels — molded, assembled, and packaged in an ISO Class 7 clean room when the application demands it.
Production-first laser sintering: no tooling, complex geometries, bonded assemblies that exceed the build chamber, certified hot-gas welding, and vapor smoothing for semiconductor-grade surfaces. Flight-ready materials with traceability.
In-house compounding, extrusion, and small-batch cryogenic pin milling, with a materials R&D lab behind it — particle-size analysis, DSC, TGA, DMA, melt-flow, and mechanical testing. When a formulation is too small for a large material house, it comes here: we develop it, grind it to the particle size the process needs, and sell you the material.
Browse proprietary and standard resins by property, market, and manufacturing method.
ASME-certified metal fabrication, finishing and paint, ISO Class 7 clean-room assembly, in-house testing (hydro, spark, pressure, leak, flammability, dimensional, CMM), and packaging — so the part arrives done.
| The usual way | The RMB way | |
|---|---|---|
| Material | Buy it off the shelf and hope it fits | Formulate it for the application |
| Vendors | Three suppliers, three schedules, three places to blame | One PO, one accountable engineer |
| Response | A ticket queue | An engineer who picks up the phone |
| Lifecycle | Re-budget the same failure every five years | Solve it once |
Temperature, pressure, chemistry, purity, weight, regulatory.
Select from RMB's proprietary and standard resins — or formulate a new one.
Lining, molding, or sintering — whichever the material and geometry call for.
Design for manufacturability, test coupons, in-house materials and mechanical testing.
Manufacture, inspect (CMM, hydro, spark, leak, pressure), finish, ship.
Concentrated sulfuric acid service on RMB-lined pipe since 1997.
Read the case study →[placeholder — Derek's current laser-sintering job — new material qualified in the customer's machine, machining step eliminated]
Read the case study →High-purity dosing bottles molded in PFA — cost down against the incumbent process.
Read the case study →Quotes in about three days. Questions answered the same day.
Custom thermoplastics manufacturing — engineered, formulated, and manufactured under one roof in the USA.