Accura 25 is a 3D Systems resin for SLA 3D printing that looks and feels like moulded polypropylene, so prototypes can flex, snap together and be handled like real parts. It prints smooth, finely detailed surfaces that are ready to paint, and large parts such as full-scale dashboard panels print in one piece. Choose it for snap-fit assemblies, functional prototypes, appearance models and master patterns for vacuum casting, in automotive, medical device, consumer product and film work.
How Accura 25 is manufactured
Accura 25 is manufactured using Stereolithography (SLA) on 3D Systems ProX printers, a non-inverted vat photopolymerization process in which a UV laser cures the liquid resin layer by layer with the part built right side up. Building right side up avoids the peeling forces of inverted systems, so fine features and smooth surfaces come off the printer intact, which is critical for master patterns and presentation models. The low-viscosity resin builds quickly and cleans easily, and every part is UV post-cured to reach its final properties.
Upload CAD files to Forge Labs Steam for instant Accura 25 pricing and live manufacturability feedback, and fix issues before production.
Upload CAD files to Forge Labs Steam for instant Accura 25 pricing and live manufacturability feedback, and fix issues before production.
SLA delivers the smoothest surface of any 3D printing process. Every part is washed, post-cured and has its supports removed, leaving a smooth, finely detailed surface that is ready to use straight away or to paint.
Parts are washed, post-cured and have their supports removed, leaving the smooth, finely detailed surface SLA is known for. Sharp edges, small text and fine features hold their shape, and the surface is ready for fit checks, assembly and presentation, or as a base for paint.
Select SLA resins, including Accura 25, can be dyed black after post-curing. The dye penetrates the surface for an even, deep colour that will not chip like paint, while keeping the smooth surface and fine detail of the standard finish.
Painting offers a highly durable, automotive-grade coating that enhances the aesthetics and durability of 3D-printed parts. Each part is hand-finished to ensure smooth surfaces and a premium quality appearance. Using professional-grade coating equipment, this process allows for precise application and exceptional adhesion. Custom color matching is available, making it ideal for applications that require specific branding or visual impact.
Accura 25 from 3D Systems delivers polypropylene-like mechanical properties with the exceptional surface quality only achievable through stereolithography. Its balanced properties enable functional prototypes that withstand snap-fit testing, drop tests and assembly validation while maintaining the aesthetic quality required for presentation models, so it bridges the gap between appearance models and functional prototypes.
Unlike brittle desktop SLA resins, Accura 25 offers useful elongation and good impact resistance, making it ideal for parts that require both form and function, including parts normally machined from polypropylene or ABS. Its accuracy and dimensional stability make it a dependable material for master patterns for urethane and vacuum casting.
On our ProX 950 systems, Accura 25 builds large-scale prototypes and production parts in one piece that would require multiple builds on smaller machines, from full-scale dashboard panels to aeroshell and fairing prototypes. Teams rely on it through rapid prototyping and short production runs to hold tight tolerances while reducing assembly complexity through consolidated part designs.
Parts are ready for painting, plating or clear coating straight from post-processing, which makes Accura 25 the go-to choice for appearance models and show parts.
Automotive
Black cab ducts built to drawing and reordered as vehicles are built, plus full-scale interior prototypes.
Medical & Healthcare
Handle shells and mechanism parts with a firm surface and enough give for snap-together assembly.
Film & Entertainment
Lightweight, paint-ready hero props and effects pieces, with matching backups printed from the same file.
Robotics
Gears for clear gearbox prototypes, backing plates for grip pads, and split moulds for overmoulding.
Industrial Design & Consumer Products
Paint-ready appearance models and snap-fit prototypes for user testing before tooling.
Architecture
High-detail site and phase models, reprinted from saved files as the design changes.
Automotive
Vehicle builders order Accura 25 intake ducts, blower ducts and connectors to their own drawings in a black finish, and reorder them as vehicles are built. SLA gives the air path smooth surfaces, sharply defined flanges and fine connector features, with sampled walls of about 2 mm. Design teams also use it for full-scale dashboard and console prototypes, lamp housings, air vents with moving louvers and interior trim for fit testing.
Medical & Healthcare
Medical device teams use Accura 25 for left and right handle shells together with the levers, wheels and stops inside them, so the whole mechanism can be assembled and handled as one prototype. Its firm surface has enough compliance that a thin retaining feature gives as the halves engage, while the shell holds its shape. Forge inspects every medical part, and teams move to USP Class VI ClearVue where a part needs biocompatibility data.
Film & Entertainment
Prop makers use Accura 25 for hero props, helmet and costume detail components, miniature set pieces and practical effects components that need fine surface detail, low weight and a surface that accepts paint, with the strength to withstand on-set handling. For a wearable facial prop on a feature film, Forge printed several variants in one SLA build, then reprinted a revised design with magnetic retention after movement testing, keeping the schedule intact. Hero, background and backup copies print from the same file, so they match.
Robotics
Engineers watch a planetary stage turn inside clear ClearVue gearbox housings, with most of the gears printed in Accura 25. Thin Accura 25 plates give replaceable grip pads on robot hands a smooth, rigid base, and a grip-pad hardness trial with its backing plates shipped in two business days. Accura 25 split moulds also support low-volume overmoulding without machining a metal tool.
Industrial Design & Consumer Products
Product designers use Accura 25 for consumer electronics housings, cosmetic packaging, sporting goods, toys with moving parts, and concept, marketing and CMF models, where a smooth, paint-ready surface and snap-fit capability allow comprehensive user testing before committing to tooling. Models can be textured, polished or painted, and Accura 25 ranks among the best 3D Systems SLA resins for snap-fit and functional parts, so one material takes a design from concept to validated prototype.
Architecture
Architects, developers and planners use Accura 25 for site-context and development-phase models and plant and facility layouts, where smooth, high-detail SLA holds facade detail and features from 0.1 mm at small scale. Matching models print from the same files for multiple units or phased developments, and a changed building is reprinted on its own. Large models are split into precision-fit sections that pack for transport and reassemble on site.
Values from the 3D Systems Accura 25 datasheet for large-frame SLA printers, tested to the standard listed with each property.
Mechanical performance
Accura 25 delivers dependable strength with the look and feel of moulded polypropylene, so functional prototypes, snap-fit assemblies and casting patterns stand up to real assembly and handling. Its balanced mechanical profile carries those loads without turning brittle.
Read the tensile and flexural results together: moderate stiffness with useful elongation is what lets clips and snap features flex and return. The notched impact result shows sensitivity to sharp corners, so generous radii at clip roots and bosses help parts survive repeated assembly.
Material makeup
Consistent density and surface quality keep critical features in tolerance and downstream finishing predictable. Solid density is the figure for part weight; liquid density and viscosity describe the resin before curing.
The firm Shore D surface takes sanding, painting and handling well, so assemblies fit and finish without secondary rework.
Heat performance
Heat deflection and glass transition values show where Accura 25 begins to soften, so it suits room-temperature fit checks, handling, display and casting patterns rather than heated environments. The lower deflection result under the higher load means a part near motors, heaters or direct sun should be judged on air temperature and load together.
Thermal expansion is given for two temperature ranges. Measure and fit-check large parts at room temperature. For ducts that carry heated air near the deflection temperature, or for thermal testing, choose High Temperature resin.
Datasheets, design guidance and supplier documentation for Accura 25.
Access the most recent datasheet and supporting documentation maintained by our engineering team.
Accura 25 datasheetExplore printable geometry recommendations, wall thickness tips, and finishing playbooks for SLA.
View SLA design guide
Accura 25 is manufactured using industrial-grade Stereolithography (SLA) technology, delivering exceptional surface finish and dimensional accuracy for high-detail applications. Our calibrated resin systems and closed-loop process controls keep Accura 25 parts repeatable across the full build platform.
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