Chromatic 3D Materials Opens a Rocket Propellant Test-Firing Site in Minnesota

What Chromatic is actually doing at Camp Ripley

Chromatic 3D Materials has inaugurated an integrated rocket propellant test-firing capability at Camp Ripley in Little Falls, Minnesota. The 210-square-kilometer Minnesota National Guard installation gives the company a controlled environment to validate propellant formulations that it develops using its existing elastomeric 3D printing infrastructure.

The announcement, made public in early August, frames the move as a natural extension of Chromatic's core competency. The company has built its business on cost-effective, tough elastomeric materials produced through additive manufacturing at industrial scale. Those same material science skills translate directly to rocket propulsion, where consistency, density control, and burn-rate predictability matter.

Why a National Guard training site

Camp Ripley is not a generic test range. It is a 53,000-acre facility used to train service members from Minnesota and across the Midwest, with established safety protocols for live munitions testing. Chromatic said the site's existing permitting and range-safety infrastructure cut the timeline to operational status significantly compared with building a dedicated facility from scratch.

The company did not disclose the size of its investment in the facility or how many people it employs at the site.

Defense and space are converging on advanced materials

Rocket propellant is an unusual product category for a company better known for industrial polymer parts, but the overlap is real. Modern solid propellant grains require precise material properties: consistent particle distribution, controlled void fraction, and reproducible mechanical behavior under extreme temperature swings. Chromatic's existing 3D printing process already manages those variables at the part level.

The company is not the only additive manufacturing player moving into propulsion. Eplus3D recently worked with UCL Rocket on a 3D-printed LOX IPA engine hot-fire, and EOS joined the MAT-H2 consortium to study metal behavior in hydrogen environments for energy and defense applications. Chromatic's move adds a materials-specific piece to that broader picture.

What this means for the industry

Propellant development has traditionally been slow and expensive, with each test firing requiring weeks of grain casting and curing. If Chromatic can use its additive manufacturing process to iterate propellant formulations faster, it could compress the development cycle for small launch vehicles and defense munitions programs.

The commercial space sector's appetite for low-cost, high-cadence testing is real. Small-launch providers and defense primes alike need access to test infrastructure that is not controlled by a handful of legacy primes. Chromatic's Camp Ripley facility is a small but concrete example of that infrastructure expanding beyond government labs.