| HS Code | 601538 |
| Product Name | Proto3000 Formlabs Clear Resin V5 |
| Manufacturer | Formlabs |
| Vendor | Proto3000 |
| Material Type | Photopolymer resin |
| Color | Clear |
| Technology | Vat photopolymerization |
| Printer Compatibility | Formlabs Form 4, Formlabs Form 4B |
| Curing Wavelength | 405 nm |
| Density | 1.13 g/cm³ |
| Viscosity | 1.0 Pa·s |
| Ultimate Tensile Strength | 65 MPa |
| Tensile Modulus | 2.7 GPa |
| Elongation At Break | 12% |
| Flexural Modulus | 2.4 GPa |
| Flexural Strength | 100 MPa |
| Shore Hardness | 85 Shore D |
| Heat Deflection Temperature At 0 45 Mpa | 74 °C |
| Heat Deflection Temperature At 1 8 Mpa | 67 °C |
| Glass Transition Temperature | 85 °C |
| Refractive Index | 1.50 |
| Container Size | 1 L |
As an accredited Proto3000 Formlabs Clear Resin V5 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Proto3000 Formlabs Clear Resin V5 packaging: one sealed 1 L cartridge in a labeled, protective cardboard box. |
| Container Loading (20′ FCL) | 20′ FCL: Proto3000 Formlabs Clear Resin V5 loaded on pallets, secured with straps, evenly distributed, and protected for maritime shipment. |
| Shipping | Proto3000 Formlabs Clear Resin V5 ships as a non-regulated liquid under DOT/IATA/IMDG. It is packaged upright in sealed, opaque bottles or cartridges, with no UN number, hazard class, packing group, labels, or placards required. Protect from heat and sunlight; follow the SDS for safe ground or air transport. |
| Storage | For Proto3000 Formlabs Clear Resin V5, store upright in its original, tightly closed container in a cool, dry, well-ventilated area. Keep away from direct sunlight, UV light, heat, sparks, flames, and oxidizers. Maintain 18–28°C; do not freeze. Store away from food or drink. Use PPE and consult the SDS for full guidance. |
| Shelf Life | Proto3000 Formlabs Clear Resin V5: shelf life about 12 months when stored sealed, cool, dry, and out of sunlight. |
When droplet-generation manifolds and flow-visualisation cells are printed from Proto3000 Formlabs Clear Resin V5, the limiting process variable is not bulk optical clarity but the removal of partially gelled resin from blind channels before UV post-cure. In a vat photopolymerization cell using a 405 nm continuous-wave laser at a nominal output of 250 mW and layer slicing from 25 μm to 100 μm, channels with hydraulic diameters below 1.0 mm retain an uncured film that causes lumen narrowing if the green part is cured without pressurised flushing. Production records from fluidic prototyping lines consistently identify dead-ended branches below 0.5 mm as the primary rework driver; the accepted corrective action is alternating positive and negative pressure with ≥99% isopropanol or tripropylene glycol monomethyl ether at 30–60 mL/min through Luer-locked ports. The formulation addition ratio for this application is 100 wt% neat resin, 0 phr reactive diluent, and 0 phr pigment dispersion; introduction of isopropanol, acetone, or reactive acrylate diluents into the vat is outside the supplier’s validated envelope and tends to depress crosslink density at channel surfaces. Industry compliance for non-clinical microfluidic prototypes is governed by RoHS 2011/65/EU Annex II and REACH 1907/2006 Article 33 communication duties; the grade is not supplied with an ISO 10993-1:2018 biocompatibility package, and any diagnostic or cell-contact application requires a separate ISO 13485:2016 quality system and device-specific validation. The downstream production sequence includes automated solvent washing in two sequential baths, compressed-air clearing, and UV post-cure at 60°C for 10–30 minutes depending on wall section; terminal components produced through this route are microfluidic droplet generators, micromixer test couplers, and optically transparent manifolds for particle image velocimetry.
Refractive homogeneity in Clear V5 parts intended for lens, light-pipe, and display-window evaluation is affected more by layer-interface scattering and post-cure temperature drift than by the base resin’s visible-light transmission. When optics are printed at 25 μm or 50 μm layer heights on a 405 nm laser platform, build orientation should place the primary ray path parallel to the layer plane, because perpendicular incidence across multiple layer interfaces produces diffraction and haze that cannot be removed by surface polishing alone. The formulation addition ratio is fixed at 100 parts by weight resin per 100 parts total feed; no index-matching nanoparticles, reactive diluents, or pigment dispersions are added because sub-micron fillers are not stabilised in this feedstock and generate visible scattering centres above 1 wt% loading. Industry compliance for prototype optical parts references ASTM D1003-13 for total luminous transmittance and haze, ASTM D542-14 for refractive index measurement on polished coupons, and ISO 4892-2:2013 for accelerated xenon-arc exposure screening; these are engineering protocols and do not qualify the material for serial production of regulated automotive or medical optics. Downstream processing uses two-stage isopropanol washing, then post-cure at 60°C for 15–30 minutes. Surface finishing includes wet sanding with P800 through P3000 abrasive papers, followed by acrylic polishing compound or a two-component polyurethane clearcoat. Process audits show that air temperature oscillation in the cure chamber greater than ±5°C is correlated with visible striation in solid sections exceeding 8 mm thickness, although published data for this specific resin grade is limited. Terminal finished components include LED collimator prototypes, total internal reflection test coupons, edge-lit display light pipes, and lens housings used for fit-form evaluation rather than mass production.
In device assembly cells, transparent clamping fixtures and go/no-go inspection gauges produced from Proto3000 Formlabs Clear Resin V5 expose pin-position error before electrical test by giving line operators direct sight to pin and connector seats. The formulation addition ratio is 100% neat as-supplied resin; no reinforcing fiber, mineral filler, or colorant is blended at the point of use. Applicable compliance disciplines for assembly fixtures are ISO 9001:2015 control plans, RoHS 2011/65/EU Annex II material restrictions, and ASTM D695-15 compressive test coupons for verifying load limits; fixtures that contact energised circuits must be validated against the plant’s own electrical safety procedure because the material is not a certified electrical insulator. Downstream production starts with 100 μm layer printing to minimise build time on datum-rich nests, followed by isopropanol washing, post-cure at 60°C, and manual removal of supports from locating bores. Metal thread-forming inserts are installed at ambient temperature with adhesive rather than heat staking because the cured polymer’s heat deflection temperature measured under ASTM D648-18 is below the 180°C insertion temperature of common heat-stake inserts. The terminal part types are transparent go/no-go gauges, pin alignment nests, solder-paste stencil inspection frames, and shadow boards for connector kit assembly.
Transparent craniofacial and maxillofacial planning models printed from Clear V5 allow surgeons and implant planners to trace cortical boundaries, sinus cavities, and osteotomy lines in a non-sterile visualisation environment, but the material does not acquire ISO 10993-1:2018 biocompatibility from a 405 nm printer, from DICOM segmentation software, or from the Proto3000 distribution chain. The formulation addition ratio for anatomical models is 100 wt% undiluted resin; no plasticiser, dye, or radio-opacifying filler is added before printing, and the resin is not cleared for contact with broken skin or mucosal tissue under FDA 21 CFR Part 878 or equivalent MDR 2017/745 Annex VIII rules. The applicable engineering standards are ASTM D638-14 for tensile handling strength and ASTM D695-15 for compressive resistance of hollow bone segments; hospital-grade quaternary ammonium wipe compatibility must be verified per facility protocol, and steam autoclaving at 121°C is contraindicated because the cured material will distort above its published heat deflection temperature under ASTM D648-18. Downstream production begins with DICOM to STL segmentation, hollowing to a 2.0 mm shell with drainage ports at the lowest printed surface, 100 μm layer build on a low-force stereolithography platform, solvent washing, and post-cure at 60°C for 20–30 minutes. Terminal parts are teaching mandibles, orbital fracture repair task trainers, and non-sterile screw trajectory confirmation models used at the surgical planning desk rather than in the sterile field.
For bubble-free platinum-cure silicone casting, the transparent master-mould workflow using Clear V5 depends on surface sealing of the printed master before RTV-2 silicone is introduced, because residual acrylate at the cured surface can poison addition-cure chemistry in thin sections. The formulation addition ratio of the photopolymer master is 100 wt% neat resin, with 0 wt% mould-release additive compounded into the resin; after post-cure, a dry PTFE release film or a water-based acrylic sealcoat is applied as a process aid. Applicable compliance for the printed master is limited to general REACH 1907/2006 Article 33 and RoHS 2011/65/EU restrictions; the master does not itself comply with food-contact or medical-grade silicone moulding codes such as FDA 21 CFR 177.2600 unless the silicone cast and subsequent post-processing are validated separately. Downstream processing includes printing the negative mould at 50 μm layer height, isopropanol washing, post-cure at 60°C for 30 minutes, sealing of the cavity, and vacuum degassing of the silicone at 50–100 mBar before pouring. The terminal output using this master route includes transparent silicone lenses, soft robotic actuator skins, microfluidic gaskets, and prosthetic liner prototypes for benchtop fit studies.
Clear V5 is applied to facade mock-ups and retail lighting test units where transparent panels must resist repeated handling while maintaining low-angle illumination uniformity; the material is selected for the ability to be sanded and clearcoated into a glass-like appearance without the weight or cutting geometry of sheet glass. The formulation addition ratio is 100% neat resin by weight; no UV absorber, plasticiser, or solvent-based thinner is added before printing, and long-term outdoor exposure requires a separately validated UV-blocking clearcoat because the base resin is not classified for permanent exterior use under ISO 4892-2:2013. Industry compliance for architectural models is project-specific; general material restrictions under REACH 1907/2006 and RoHS 2011/65/EU apply to the cured article, while impact resistance is characterised by ASTM D256-23 Izod testing on notched coupons before model transport. Downstream production uses 50 μm layer height for thin facade shells, two-stage solvent washing, post-cure at 60°C for 15–20 minutes, and assembly with aluminium tube framing or solvent-bonded acrylic sprues. Abrasive finishing from P600 to P3000 is used only on externally exposed surfaces; internal surfaces are left unpolished to avoid hollow-cavity damage. Terminal finished parts are architectural scale models, exhibition display towers, lighting distribution test fixtures, and transparent retail presentation units.
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Within industrial 405 nm stereolithography workflows, the Proto3000 Formlabs Clear Resin V5 is supplied as a transparent methacrylate photopolymer for Formlabs Form 4 and Form 4L systems. The cartridge format is 1 L, and the material is processed at layer thicknesses from 25 µm to 100 µm. Formlabs technical data sheets describe the cured resin as a rigid, optically clear material with a tensile modulus of approximately 2.8 GPa, an ultimate tensile strength near 65 MPa, and elongation at break near 6.2% when tested according to ASTM D638-14 or ISO 527-2. Notched Izod impact resistance is reported near 25 J/m under ASTM D256-10 or ISO 180/A, and heat deflection temperature under 0.45 MPa loading is commonly listed in the 50–60 °C range per ASTM D648-18 or ISO 75-1/-2. These values are indicative only; part orientation, post-cure uniformity, and lot-to-lot variation materially shift final properties.
The primary processing sequence for Clear Resin V5 consists of printing, washing in 99% isopropanol, drying, and UV post-curing. On production lines using the Form Wash and Form Cure ecosystem, wash times of 5–10 min and post-cure temperatures near 60 °C are typical, with total cure durations of 15–30 min depending on part cross-section and optical surface requirements. Incomplete solvent removal before post-cure produces surface hazing and internal clouding in thick sections. Parts removed from the bath with residual solvent can also exhibit tacky surfaces after cure. For tight-channel parts, a drying stage of at least 30 min after washing is applied before UV exposure. A filtered-air drying station or compressed clean-air gun is recommended over uncontrolled ambient drying when relative humidity exceeds 60%, because water uptake on the uncured surface can compromise the final optical clarity and interfacial bonding of subsequently applied coatings.
| Property or requirement | Reference method or condition | Typical reported range |
|---|---|---|
| Tensile modulus | ASTM D638-14 / ISO 527-2 | 2.0–2.8 GPa |
| Ultimate tensile strength | ASTM D638-14 / ISO 527-2 | 55–65 MPa |
| Elongation at break | ASTM D638-14 / ISO 527-2 | 5–12% |
| Notched Izod impact | ASTM D256-10 / ISO 180/A | 20–30 J/m |
| Heat deflection temperature | ASTM D648-18 / ISO 75-1/-2 at 0.45 MPa | 50–60 °C |
| Shore D hardness | ASTM D2240-15 / ISO 868 | 78–82 |
Published data for optical haze, refractive index, and transmission uniformity for this specific V5 formulation remains limited. Users qualifying light-transmitting parts must run acceptance testing under ASTM D1003 or an equivalent goniophotometric method before committing to production volumes. Proto3000 can supply the latest manufacturer datasheet for lot-specific mechanical properties, but internal validation on the actual post-cure line remains the binding method for optical and dimensional qualification.
Clear Resin V5 is not a biocompatibility-qualified material. Unlike Formlabs BioMed Clear, which is processed under a medical-device quality system and tested for cytotoxicity under ISO 10993-5, standard Clear Resin V5 should not be used for mucosal contact, implantation, or open-wound adjacent applications. The selection boundary is regulatory rather than visual: both materials can appear transparent, but only BioMed Clear carries the required biological safety documentation for medical end-use. For thermally stressed optical fixtures, High Temp Resin offers a heat deflection temperature near 238 °C at 0.45 MPa, whereas Clear Resin V5 softens at much lower service temperatures. Conversely, High Temp Resin is not considered an optical-grade transparent material in the same visual clarity class. When a load-bearing clear part also encounters elevated process heat above 50 °C, Clear Resin V5 is generally outside its stable operating window, and the design should shift to a high-temperature resin or an alternative manufacturing route such as CNC-machined polysulfone or polycarbonate.
When clear microfluidic manifolds are built for bead-based assays, laminar-flow mixers, or visible-light inspection housings, the part must be evaluated for solvent compatibility rather than only for channel resolution. Clear Resin V5 is compatible with neutral aqueous buffers and short-term exposure to diluted laboratory cleaning agents, but aggressive organic solvents cause swelling, surface whitening, and stress cracking. The material is not rated for continuous immersion in acetone, methylene chloride, or strong ketones. Pressurized channel validation should be performed on printed examples because geometric wall thickness, post-cure uniformity, and layer adhesion determine burst limits. Published data for long-term hydrolytic stability of this specific configuration is limited, so lifecycle exposure testing under the actual fluid composition and temperature profile is mandatory. For microfluidic manifolds with internal channels below 0.5 mm, support generation and resin drainage must be controlled; trapped uncured resin in dead-end channels produces optical occlusion and later leachable fractions.
Thermal post-cure is the dominant variable in final transparency and dimensional accuracy. At cure temperatures above 65 °C, Clear Resin V5 can begin to yellow, especially in thick sections where exothermic crosslinking is less uniform. At cure temperatures below 40 °C, surface hardness and chemical resistance remain underdeveloped. The Form Cure chamber with 405 nm LED exposure and heated air circulation is used to hold parts at approximately 60 °C for 15–30 min. Overcuring does not indefinitely improve properties; prolonged exposure can increase brittleness and darken the polymer matrix. Dimensional stabilization is evaluated by measuring linear shrinkage after cure with calibrated calipers or coordinate measurement machines, and users report that anisotropic shrinkage is more pronounced in Z-axis tensile sections than in X/Y wall features. Batch-to-batch viscosity shifts can alter fill speed and layer wetting on high-volume Form 4L builds, so incoming resin should be checked with a rotational rheometer if a consistent edge profile is required.
Unlike grey or black standard resins, Clear Resin V5 demands an additional optical finishing sequence when surface gloss and transmission are product-level requirements. Sanding with 400–600 grit wet/dry paper followed by 1500–2000 grit finishing reduces layer-lines, but abrasive cutting generates micro-fractures at the surface that scatter light. A subsequent clear acrylic lacquer or UV-curable optical coating is used to fill residual micro-roughness. For functional light pipes, internal walls should be modelled with the same thickness tolerance as optical lenses; deviations greater than ±0.1 mm can produce visible refraction artifacts. Polished surfaces can approach near-transparency, but full optical clarity is never equivalent to injection-moulded PMMA or polished polycarbonate. Designs with embedded lenses or optical windows should include post-machining allowance of 0.2–0.5 mm before final surfacing.
Clear Resin V5 is a rigid, relatively brittle photopolymer. Although snap-fit assemblies are possible, cyclic loading introduces fatigue crack initiation at layer boundaries and at sharp notches. The notched Izod impact value near 25 J/m and low elongation at break near 6.2% make the material unsuitable for living hinges or snap arms requiring repeated deformation. Impact-loaded clear parts should be redesigned with larger radii, thicker cross-sections, or replaced with Tough 2000 or Durable Resin when transparency is not the first requirement. If transparency and toughness are both mandatory, a thicker 4–6 mm wall section and reinforced boss geometry can shift failure from brittle fracture to acceptable deformation. Testing under ISO 178 or ASTM D790-17 should confirm flexural strength, while fatigue validation is needed under the actual strain amplitude because published S-N data for Clear Resin V5 is limited.
For investment casting patterns and burnout workflows, Clear Resin V5 is not a substitute for Formlabs Castable Resin. Standard clear resin leaves high ash fractions and can expand during burnout, cracking ceramic shells. Castable resins are formulated for clean burnout with low residual ash, while Clear Resin V5 may retain carbonized residue in fine re-entrant features. The same applies to soldering and brazing fixtures exposed to temperatures above 130 °C; Clear Resin V5 softens and deforms well below metal-processing temperatures. For low-temperature molding over clear patterns, the resin can be used as a pattern if the mold rubber does not inhibit platinum-catalyzed silicones, but compatibility with each specific RTV chemistry must be verified. Incompatibility with amine-containing condensation-cure silicones is a known operational boundary; inhibition produces tacky uncured surfaces at the pattern interface.
In optics prototyping where transmitted wavefront quality is the acceptance criterion, Clear Resin V5 is best used as a versatile form-fit prototype rather than as a replacement for cast or injection-moulded optical acrylic. Surface roughness after printing must be reduced below the wavelength of interest, and transmitted light should be inspected under a broadband source for striae, voids, and layer-interface scatter. A profilometer or optical interferometer is recommended to confirm surface flatness before coating. Qualification should include a transmittance measurement through a flat reference coupon of known thickness under ASTM D1003, followed by a visual inspection against a black background under controlled illumination. Without these checks, the visual clarity of a printed part can be misleading because internal voids and micro-voids are not always visible in ambient light. For high-accuracy optical assemblies, glass-filled or ceramic-filled clear thermosets are not interchangeable with this resin because they introduce scattering particles that reduce transparency, while Clear Resin V5 maintains transparency at the cost of lower heat resistance and lower fracture toughness.
