Rapid Liquid Print (RLP) is a Boston/Milton, Massachusetts–based technology company that commercializes a patented "Gravity Free Manufacturing™" embedded-gel printing process for producing high-performance elastomer and silicone parts at speeds and scales difficult for conventional 3D printing to match[2][3]. Rapid Liquid Print spun out of MIT in 2018 to address limits in speed, scale, material properties, and mass customization for elastomeric manufacturing and now serves sectors including medical devices, footwear, home goods, furniture, aerospace, and automotive[1][3].
High-Level Overview
- Mission — RLP’s stated mission is to “make the impossible possible” by replacing layer‑based constraints with a gravity‑free, gel‑suspended manufacturing approach that enables faster, cleaner, and more capable production of elastomer products and mass‑customized silicone prostheses and seals[2][3].[2][3]
- Investment philosophy — (Not applicable; RLP is an operating company rather than an investment firm.)- Key sectors — The company targets medical devices (custom prostheses, inflatable bladders), footwear, consumer goods, furniture, and demanding industrial sectors such as aerospace and automotive for large gaskets and seals[1][2].[1][2]
- Impact on the startup ecosystem — By commercializing an MIT spinout technology, RLP strengthens the advanced‑manufacturing cluster around Boston, provides a new pathway for scaling elastomer innovation, and lowers technical barriers for startups and research institutions to prototype and produce silicone parts at production‑relevant speed and quality[3][4].[3][4]
For a portfolio-company style summary (product / customers / problem / momentum)
- What product it builds — RLP builds a Gravity Free Manufacturing™ platform (hardware + Veer™ software + reusable suspension gel) to produce silicone/elastomer parts without support structures, including custom medical prostheses, inflatable bladders, multi‑durometer seals, and large formed parts[2].[2]
- Who it serves — Customers include medical providers and device makers, footwear and consumer‑goods brands, furniture manufacturers, and aerospace/automotive OEMs and suppliers requiring high‑performance elastomer components[1][2].[1][2]
- What problem it solves — It overcomes typical 3D‑printing limits for elastomers: slow throughput, poor surface quality from layered prints, limited multi‑durometer integration, and extensive post‑processing for supports; its process prints parts suspended in a reusable gel and requires only a water rinse[2].[2]
- Growth momentum — Founded in 2018 as an MIT spinout, RLP has moved toward commercialization with product announcements and order intake (e.g., product availability for 2026 delivery noted on its site) and reported traction at industry events such as RAPID + TCT 2025, signaling customer interest in its speed and part quality for production applications[1][2][3].[1][2][3]
Origin Story
- Founding year and roots — Rapid Liquid Print was founded in 2018 as a spinout from MIT (originating in research groups such as the Self‑Assembly Lab) to tackle limitations in additive manufacturing for elastomers and silicone materials[3][5].[3][5]
- Founders and background — The company grew from MIT research teams; public materials describe it as an MIT spinout with a world‑class technical team rather than highlighting individual founders on the public site[3][5].[3][5]
- How the idea emerged — Researchers sought to escape gravity‑ and layer‑driven constraints by printing parts suspended inside a reusable gel bath (a “gravity‑free” environment) to allow complex geometries, improved surface finish, and materials with up to ~1000% elongation for inflatable and stretchable designs[3][2].[3][2]
- Early traction / pivotal moments — Early milestones include proving the Veer™ path‑planning software and gel suspension approach, demonstrating medical prostheses and industrial seals, and showing technology commercially at industry conferences (e.g., RAPID + TCT), followed by a Series A funding round reported in company databases[1][2][3].[1][2][3]
Core Differentiators
- Patented Gravity Free Manufacturing™ process — Printing in a reusable suspension gel removes the need for support structures and simplifies post‑processing to a water rinse, enabling complex geometries and multi‑durometer parts[2].[2]
- Veer™ form‑first, non‑planar software — Toolpaths optimized for non‑planar, suspension printing prioritize surface quality and speed versus traditional layer stacking[2].[2]
- Material focus on elastomers/silicones — The process is tuned for high‑elongation, medical‑grade silicones and elastomers that are challenging for typical stereolithography or fused deposition methods[3][2].[3][2]
- Scale and throughput claims — RLP positions the technology as faster and more production‑oriented than conventional 3D printing for elastomers, aiming at batch production and large parts such as gaskets/seals for aerospace and automotive markets[1][2].[1][2]
- Product + service model — RLP combines hardware, software, and materials/production capability (including contract manufacture of custom prostheses) rather than only selling printers, which can accelerate customer adoption in regulated sectors like medical devices[2][3].[2][3]
Role in the Broader Tech Landscape
- Trend alignment — RLP rides multiple converging trends: advanced additive manufacturing for end‑use parts, mass customization (especially medical prosthetics and wearables), and the push to printable elastomers and multi‑durometer components for more functional parts[3][1].[3][1]
- Why timing matters — Demand for customized medical devices, lightweight sealing solutions in aerospace/automotive, and differentiated consumer products has grown while traditional 3D printing struggles with elastomeric materials, creating an opening for a gel‑suspended process that improves throughput and quality[1][2].[1][2]
- Market forces in their favor — Regulatory and supply‑chain pressures toward onshore, flexible production and the willingness of OEMs to adopt new manufacturing modalities for performance improvements support RLP’s commercial case[1][3].[1][3]
- Influence on ecosystem — As an MIT spinout commercializing a novel manufacturing modality, RLP can enable designers and startups to prototype and scale elastomer products more easily, potentially spawning new product categories (e.g., high‑performance inflatables, integrated multi‑material seals) and catalyzing OEM partnerships in regulated industries[3][5].[3][5]
Quick Take & Future Outlook
- Near term — Expect RLP to focus on scaling production capabilities, shipping initial systems or fulfilling contracted manufacturing orders (site notes availability windows like 2026), and expanding distribution or partnerships to reach footwear, medical, and industrial customers[2][1].[2][1]
- Medium term — Success will hinge on demonstrating consistent part reliability and regulatory readiness (for medical devices), building a service and support network, and converting pilot customers into production contracts in aerospace, automotive, and medical sectors[1][2][3].[1][2][3]
- Risks and enablers — Key enablers include proven material properties and throughput advantages versus incumbent processes; risks include competition from other advanced elastomer printing technologies, capital intensity of scaling manufacturing, and qualification cycles in regulated industries[1][3].[1][3]
- How their influence might evolve — If RLP validates production speed, surface quality, and material performance at scale, it could become a go‑to platform for custom silicone/elastomer production, shifting some elastomer manufacturing from molding toward additive, especially where customization or complex geometry adds value[2][3].[2][3]
Quick take: Rapid Liquid Print is an MIT‑origin company that addresses a clear technical gap—high‑quality, high‑throughput elastomer printing—through a patented gel‑suspension platform and supporting software, and its near‑term trajectory depends on converting early commercial interest into validated production across medical and industrial customers[3][2][1].[3][2][1]
Sources: Rapid Liquid Print company site and About page[2][3]; CB Insights company profile and market notes[1]; industry coverage and MIT spinout context[5].[2][3][1][5]
