Henkel Loctite 3D 3843 HDT60 3D Printing Acrylic Resin
- Название продукта: Henkel Loctite 3D 3843 HDT60 3D Printing Acrylic Resin
- Сайт Factroy: Округ Юду, Ганьчжоу, Цзянси, Китай
- Запрос цены: admin@ascent-chem.com
- Производитель: Ascent Petrochem Holdings Co., Limited
- Свяжитесь сейчас
- Henkel Loctite 3D 3843 HDT60 3D Printing Acrylic Resin is typically used in formulations when heat deflection temperature and viscosity must be controlled within specific ranges.
| Код ТН ВЭД | 377072 |
Как аккредитованный завод акриловой смолы для 3D-печати Henkel Loctite 3D 3843 HDT60, мы соблюдаем строгие протоколы качества - каждая партия подвергается строгим испытаниям для обеспечения последовательных стандартов эффективности и безопасности.
| Упаковка | Sealed 1 kg opaque plastic bottle with Henkel Loctite 3D 3843 HDT60 labeling, safety cap, and hazard warnings. |
| Погрузка контейнера (20-футовый контейнер) | 20′ FCL container loaded with palletized Henkel Loctite 3D 3843 HDT60 acrylic resin, securely braced for safe ocean chemical shipment. |
| Доставка | Henkel Loctite 3D 3843 HDT60 3D Printing Acrylic Resin is not regulated for transport; no UN number, hazard class, or packing group. Ship as non-hazardous general cargo in original, closed containers. Protect from light, heat, and freezing; follow SDS and local rules. |
| Хранение | Store Henkel Loctite 3D 3843 HDT60 3D Printing Acrylic Resin upright in its original, tightly sealed container in a cool, dry, well-ventilated area, away from direct sunlight, UV light, heat, sparks, and flames. Maintain recommended temperature, typically 15–25°C; do not freeze. Keep container closed when not in use; avoid moisture, contamination, and children. Follow SDS/local regulations. |
| Срок годности | Shelf life is 12 months from date of manufacture when stored unopened at 15–25°C, away from direct sunlight. |
Layer-by-layer DLP fabrication of benchtop instrument enclosure covers using Loctite 3D 3843 HDT60 requires a 385 nm LED source and a 50 µm Z-step. The per-layer exposure dose is set between 6 mJ/cm² and 10 mJ/cm² to maintain feature fidelity for 1.5 mm to 2.0 mm wall sections. After the build, parts are washed in two stages of 99.9% isopropyl alcohol, air-dried at 25 °C for 30 min, and post-cured under 405 nm LEDs at 10 mW/cm² for 30 min while the part rotates. Thermal post-cure at 60 °C for 1 h stabilizes the conversion of residual acrylate groups and raises the heat deflection temperature toward 60 °C when measured at 0.45 MPa according to ASTM D648 Method B. At 1.82 MPa, the same property falls below 55 °C, which limits structural bosses carrying threaded assembly loads. Snap-fit enclosures with 0.8 mm to 1.2 mm cantilever thickness exhibit insertion forces below 35 N when the beam root radius is at least 0.5 mm. Thread-forming screws in printed bosses with pilot hole diameter of 2.7 mm for M3 should be torqued to no more than 0.4 N·m; higher torque causes radial cracking at the boss wall. The cured resin is not UL 94 V-0; typical unfilled acrylic photopolymers achieve HB at 1.5 mm wall thickness. For line-powered benchtop instrumentation, creep at continuous use temperatures above 45 °C reduces clamp load retention in screw bosses. Uncured resin viscosity of 300 cP to 450 cP at 25 °C permits continuous recirculation, but batch-to-batch variation of ±10% in viscosity alters the coating thickness on the resin vat and requires a per-batch exposure calibration. Cured parts should be conditioned at 23 ±2 °C and 50 ±5% relative humidity for 24 h according to ASTM D618 before destructive testing. RoHS compliance under EU 2011/65/EU Annex II should be confirmed with the supplier SDS; REACH candidate list SVHC content above 0.1% w/w must be checked for the specific formulation lot.
What Restricts Photopolymer Cavities to Low-Pressure, Low-Temperature Injection Grade Trials?
Mold inserts printed with 3843 HDT60 are limited to short-run validation of low-melt-temperature polymers because the resin’s 0.45 MPa heat deflection temperature of 60 °C does not provide sufficient compressive strength above 50 °C. Cavity wall temperature is the controlling parameter. When the insert is mounted in an aluminium chase with conformal cooling channels of 6 mm diameter, water at 20 °C can hold the cavity wall below 45 °C for melt temperatures up to 160 °C and injection pressures below 700 bar. Above 700 bar, local compressive stress exceeds the yield point of unfilled acrylic at 23 °C, measured near 70 MPa by ASTM D695. At 50 °C, compressive yield stress is reduced by approximately 40%, leaving a safety margin of less than 15 MPa for most cavities. Edge chipping at the parting line is a known failure mode. A steel support frame is required because the photopolymer insert cannot withstand clamp tonnage without lateral restraint. The insert must not be used for polypropylene at 200 °C melt temperature because the wall temperature surpasses 60 °C within 10 cycles. Low-density polyethylene and thermoplastic polyurethane trials can be run with conformal cooling. A 50 µm layer height is preferred over 100 µm for the machined shut-off surfaces; the finer layer reduces stair-step leakage at the parting line. The cavity face should be drafted at 1° to 2° because the resin has low wear resistance under ejection friction. Chemical adhesion between the injected polymer and the photopolymer insert is possible if the melt temperature exceeds 180 °C, so a silicone-based mold release is required for TPU. Insert lifespan is strongly affected by injection pressure, melt temperature, and gate design. Published data for this specific configuration is limited; insert life must be established by first-article trials on the actual press.
| Thermoplastic | Melt temperature | Max injection pressure | Max cavity wall temperature | Expected insert trend |
|---|---|---|---|---|
| LDPE | 160 °C | 700 bar | 45 °C | 10–50 shots |
| TPU | 180 °C | 500 bar | 50 °C | 5–20 shots |
| PP | 200 °C | 600 bar | >60 °C | Not recommended |
Inside cabin wiring harness routing, the resin’s 60 °C HDT at 0.45 MPa creates a use envelope that excludes A-pillar garnish surfaces exposed to direct sunlight. Clips printed at 1.2 mm to 1.8 mm thickness and post-cured at 60 °C for 1 h are limited to locations where the ambient air temperature stays below 55 °C. A typical harness clip must survive 10 insertion and removal cycles without snap shank whitening. Unfilled acrylic photopolymers exhibit low elongation at break, typically 8% to 15% by ASTM D638. After 500 h at 85 °C, elongation can drop below 5%, while tensile strength retention is usually 70% to 85% by ISO 527-2. This reduction forces a snap-fit design with a beam root radius of at least 0.8 mm and a nominal strain below 3% during insertion. Cycle testing per ISO 16750-4 requires a low-temperature dwell at -40 °C for 8 h. At -40 °C, unfilled acrylic impact resistance falls to less than 20 J/m notched Izod by ASTM D256, so clips should have no sharp corners and no molded-in mounting features with re-entrant angles. The material is not recommended for engine bay or exterior cladding locations where continuous use exceeds 60 °C. Automotive interior clips made from this resin should be painted or coated if they are exposed to UV-rich cabin light, because unfilled acrylic photopolymers can yellow and embrittle after prolonged UV exposure. Fastener retention in sheet metal holes of 6.3 mm diameter is below 120 N at room temperature when the clip is inserted at 23 °C; at 50 °C, retention drops by 20%.
Thermal Management of Pneumatic Grippers in PCB Assembly Work Cells
Gripper jaws and vacuum cups for PCB handling in surface-mount assembly are printed as 6 mm to 10 mm thick slabs and machined on one face for M4 and M5 threaded inserts. Direct thread-forming screws in printed bosses split at torque values above 0.6 N·m for M4; therefore, brass helical inserts bonded with cyanoacrylate are torqued to 0.3 N·m and provide pullout force greater than 150 N at room temperature. The surface resistivity of the cured resin is above 10¹⁴ Ω/sq by ASTM D257, so the grippers are insulative and require an applied antistatic coating or carbon-filled layer when used inside an ESD protected area below 10⁹ Ω/sq per ANSI/ESD S20.20. Pneumatic gripper actuation at 6 bar generates cyclic bending stresses below 10 MPa; after 100,000 cycles at 23 °C, the resin shows no loss in stiffness because the cyclic stress remains below 30% of the flexural yield stress. At 45 °C, the allowable stress is reduced by 25%; therefore, the gripper design uses a safety factor of 2.0 against the 0.45 MPa HDT limit. The working environment temperature must not exceed 50 °C. Vacuum cup lips with Shore D hardness of 82 to 86 by ASTM D2240 maintain seal compression set below 10% after 72 h at 40 °C. The resin has low thermal conductivity near 0.2 W/m·K, so cyclic contact with warm PCB surfaces above 60 °C causes localized softening at the contact face. M4 threaded inserts should be installed with a minimum boss outer diameter of 8 mm; bosses below 6 mm outer diameter crack at installation torque even with adhesive. The printed gripper body should be stress-relieved by slow cooling after thermal post-cure to reduce residual shrinkage stress.
When 50/50 Ethylene Glycol/Water Flows Through Printed Manifold Prototypes
Fluid manifold prototypes printed with 3843 HDT60 are evaluated only for short-term coolant exposure at ambient temperatures because acrylic photopolymers absorb polar fluids and lose strength. Immersion in 50/50 ethylene glycol/water at 23 °C for 24 h according to ISO 62 produces water absorption values of 1.0% to 1.5%, which corresponds to a tensile modulus reduction of 10% to 15% by ASTM D638. A 2.0 mm wall thickness manifold with internal O-ring groove geometry can withstand an applied hydrostatic pressure of 4 bar at 23 °C, but at 55 °C the same wall thickness should be derated to 2 bar due to creep. Fluid manifold prototypes must not be used with aromatic hydrocarbons, ketones, or esters; ethylene glycol at 50 °C is acceptable for a 24 h validation. Continuous exposure above 50 °C is outside the material’s operational boundary. O-ring groove corners should have a minimum radius of 0.5 mm to avoid stress concentration when the manifold is pressurized at 4 bar. Threaded fluid ports should use straight thread O-ring boss fittings rather than tapered pipe threads; tapered threads create hoop stress that cracks the boss at tightening torque above 0.5 N·m. Rinsing the printed manifold with isopropyl alcohol before fluid exposure removes uncured monomer residue that would otherwise leach into the coolant and contaminate the test loop. Burrs and step artifacts from 50 µm layers must be removed by light bead blasting at 2 bar to prevent cavitation at sharp edges. The manifold should be pressure-tested with compressed air at 1.5 times the intended working pressure after 24 h of conditioning at 23 °C and 50% relative humidity. Published data for this specific manifold configuration is limited; long-term coolant compatibility must be confirmed by instrumented loop testing under the actual thermal cycle.
Can 60 °C Heat Deflection Photopolymer Substitute for Machined Acetal in Vacuum Holding Fixtures?
Vacuum holding fixtures in adhesive dispensing cells can use printed 3843 HDT60 when the ambient temperature remains below 45 °C and the fixture is not exposed to ketone-based solvents. The resin cannot approach the 90 °C to 110 °C HDT of acetal homopolymer at 1.82 MPa; therefore, substitution is restricted to low-temperature vacuum chucks for silicone adhesive dispensers. A concave face with 2.0 mm wall thickness supports a differential pressure of 0.6 bar without visible plastic deformation after 10,000 cycles. The Shore D hardness of the cured resin is approximately 82 to 86 by ASTM D2240, which provides sufficient indentation resistance for aluminium workpiece clamping. Edge radius of 0.5 mm is required because the material’s notched Izod impact is below 25 J/m by ASTM D256. For vacuum fittings, M5 tapered pipe threads are avoided; straight O-ring boss fittings are used because tapered threads create hoop stress that cracks the boss at tightening torque above 0.5 N·m. Vacuum cavity floor thickness of less than 1.5 mm leads to buried heat distortion when the fixture is placed on a warm adhesive curing platen at 50 °C. The fixture must not be cleaned with methyl ethyl ketone or acetone; isopropanol at 99.9% is acceptable for surface degreasing. Because the resin is an electrical insulator with surface resistivity above 10¹⁴ Ω/sq, vacuum fixtures in solvent-rich dispensing cells should be grounded through an external conductor to avoid static charge accumulation. The coefficient of linear thermal expansion of unfilled acrylic is near 70 × 10⁻⁶ /°C, which is higher than acetal and must be accounted for when vacuum hole positions are matched to a heated substrate. Published data for this specific vacuum fixture configuration is limited; operational life must be validated with the actual workpiece mass and pressure cycle.
Конкурентоспособные цены на акриловую смолу для 3D-печати Henkel Loctite 3D 3843 HDT60, которые соответствуют вашему бюджету - гибкие условия и индивидуальные котировки для каждого заказа.
Для получения образцов, цен или более подробной информации свяжитесь с нами по адресу +8618136850665 или отправить по почте admin@ascent-chem.com.
Мы ответим вам как можно скорее.
Телефон: +8618136850665
Электронная почта: admin@ascent-chem.com
Получите бесплатную сметуAscent Petrochem Holdings Co., Limited
Гибкие условия оплаты, конкурентоспособные цены, первоклассное обслуживание — обращайтесь прямо сейчас!
- Henkel Loctite 3D 3843 HDT60 3D Printing Acrylic Resin Производится в соответствии с системой качества ISO 9001 и отвечает соответствующим нормативным требованиям.
- Сертификаты COA, SDS/MSDS и другие соответствующие документы предоставляются по запросу. Для запросов на получение сертификатов или получения дополнительной информации обращайтесь по следующему адресу: admin@ascent-chem.com.
Henkel Loctite 3D 3843 HDT60 is a single-component acrylic photopolymer resin formulated for vat photopolymerization additive manufacturing. The product name contains a thermal boundary: the material reaches a heat deflection temperature of 60 °C at 0.455 MPa when tested in accordance with ASTM D648-18. The resin cures by free-radical chain-growth polymerization of acrylate and methacrylate functional groups under UV-A radiation in the 385–405 nm band. This chemistry produces a crosslinked network that is more impact-tolerant than rigid high-temperature photopolymers but less thermally resistant than aromatic methacrylate or epoxy-based systems. In the context of production tooling and functional prototyping, the resin is specified when a part must survive snap-assembly, repeated clamping, or light impact without shifting to a high-temperature chemistry that may introduce brittleness. The published property set is not an intrinsic material constant; it is a process outcome shaped by layer thickness, optical dose, post-cure time, and build orientation. Consequently, any specification argument based on this product should couple mechanical data with the exact build protocol used to generate the test specimens.
Material Designation, Specification Limits, and Test Methodology
The model designation Loctite 3D 3843 HDT60 identifies a specific acrylic resin within Henkel’s photopolymer portfolio. The 60 in the suffix is not a service temperature rating; it is a heat deflection temperature at a defined flexural stress of 0.455 MPa. Under ASTM D648-18, this value describes the temperature at which a test bar deflects by a standardized amount under a three-point bending load. It is a short-term thermomechanical threshold rather than a long-term thermal aging limit. For continuous load-bearing applications, an engineering margin below 60 °C is required, with validation recommended for intermittent excursions above 50 °C unless printed specimens demonstrate otherwise.
Mechanical characterization for this resin class follows established test methods. Tensile properties are reported under ISO 527-2, flexural properties under ISO 178, and impact resistance under ASTM D256 or ISO 180. The published values are sensitive to conditioning, and specimens should be stabilized in accordance with ISO 291. Build orientation exerts a stronger influence on measured tensile strength and elongation at break in vat photopolymerization than in injection molding because interlayer conversion gradients remain after washing and post-cure. Z-axis specimens commonly show lower tensile strength than xy-plane specimens even when the post-cure cycle is optimized. This anisotropy is not specific to Loctite 3D 3843 HDT60; it is an inherent feature of layered polymerization.
| Parameter | Reported classification or value | Reference |
|---|---|---|
| Heat deflection temperature | 60 °C at 0.455 MPa | ASTM D648-18 |
| Resin chemistry | Acrylic photopolymer | Manufacturer SDS/TDS |
| UV operating band | 385–405 nm | Manufacturer process literature |
| Common build layer | 50–100 µm | Manufacturer process literature |
| Post-cure | UV-A chamber, time and irradiance per resin TDS | Manufacturer TDS |
The liquid resin requires storage in sealed, light-blocking containers because uncured acrylic resin remains reactive under ambient UV and blue light below approximately 450 nm. Resins of this class are typically stored between 5 °C and 30 °C; lower temperatures increase viscosity and can delay recoating, while higher temperatures can reduce working life and accelerate dark polymerization. Gentle mixing before use is necessary to redisperse oligomeric components and photoinitiator. The exact viscosity specification, recommended vat temperature, and exposure settings are machine-dependent and are provided in the current manufacturer’s technical data sheet. Published third-party data for this specific formulation remains limited, so production qualification should treat exposure time, lift speed, and post-cure duration as dependent variables rather than fixed constants.
What Distinguishes an HDT60 Acrylate from High-Temperature Photopolymers?
High-temperature photopolymers achieve heat deflection temperatures above 200 °C through increased aromatic content, higher methacrylate density, and greater crosslink multiplicity. Those structural features reduce segmental mobility and raise the glass transition temperature, but they also lower notched impact resistance and elongation at break. Loctite 3D 3843 HDT60 occupies a different formulation space. The acrylic backbone provides greater chain flexibility and impact absorption than rigid high-HDT systems while retaining sufficient modulus for machining, clamping, and handling. The trade-off is explicit: thermal resistance is limited to 60 °C at 0.455 MPa, and sustained mechanical load near that boundary can produce creep.
Compared with standard low-cost prototype resins, Loctite 3D 3843 HDT60 is positioned for improved fracture resistance in snap-fit and clip geometries. Compared with elastomeric or low-durometer photopolymers, it retains higher modulus and better dimensional stability under light load. The comparison is not reducible to a single property. A high-HDT resin may outperform Loctite 3D 3843 HDT60 in a thermal test but fail in a clip subjected to repeated deflection. A high-elongation resin may survive that clip deflection but exhibit unacceptable creep at 50 °C. Selection therefore requires simultaneous evaluation of heat deflection temperature under ASTM D648, notched impact under ISO 180 or ASTM D256, and tensile modulus under ISO 527-2. Published data for direct substitution into existing stereolithography resin applications is limited, so validation on representative production geometry is required before release.
When Post-Cure Irradiance Creates Conversion Gradients
Acrylate photopolymerization is exothermic and oxygen-sensitive. During printing, dissolved oxygen at the polymerization front consumes primary radicals and forms peroxy species that retard surface conversion. This effect is more pronounced in thin layers and low-irradiance systems. The result is a conversion gradient: the outer surface may remain undercured while the interior approaches gelation. A post-cure cycle in a UV chamber is therefore not optional for achieving the specified 60 °C heat deflection temperature. Post-cure parameters—wavelength, irradiance, temperature, and duration—must be matched to the resin. Elevated post-cure temperature accelerates segmental mobility and increases final conversion, but it can also increase shrinkage stress and warpage in unsupported thin walls. Typical industrial post-cure cycles for acrylic vat photopolymers use UV-A lamps in the 385–405 nm range at irradiances of 1–10 mW/cm², with durations of 30–60 min. The exact values for Loctite 3D 3843 HDT60 are specified in the manufacturer’s documentation; published independent kinetic data for this exact formulation is limited. A conservative workflow begins at the lower bound of the recommended irradiance and extends duration until heat deflection and impact values plateau. Overpost-curing can embrittle the surface and reduce notched impact, so post-cure time must be treated as a factor in mechanical testing rather than as a fixed process default.
Residual shrinkage is a further consequence of free-radical acrylate polymerization. Volumetric shrinkage in acrylic systems during conversion can reach 5–10% depending on monomer molecular weight and functionality; the observed part shrinkage is lower because gelation and crosslinking suppress bulk deformation. In vat photopolymerization, shrinkage accumulates layer by layer, creating stress between already gelled material and newly polymerizing resin. Parts with thick-to-thin transitions may develop delamination or curl if post-cure heating is too aggressive. Build orientation, support density, and drain-hole placement affect stress relief more strongly than nominal exposure time. These process variables explain why the specified mechanical properties are not achieved on every geometry without tuned build parameters.
Exposure latitude in digital light processing and liquid crystal display systems is controlled by the Jacobs working curve, where cure depth is a logarithmic function of dose. For pigmented acrylic resins of this class, the dose required to cure a 50 µm layer may fall between 10 mJ/cm² and 30 mJ/cm² at 405 nm, while a 100 µm layer may require 20–60 mJ/cm² depending on pigment loading, photoinitiator concentration, and light engine uniformity. These values are not product specifications for Loctite 3D 3843 HDT60; they define the general response envelope for pigmented acrylic photopolymers used in low-power vat systems. Validation on the target machine remains necessary because optical losses through the vat film, resin temperature, and light engine nonuniformity shift the working curve batch to batch. A diagnostic exposure series using a standardized CAD artifact is the most reliable method for establishing a printer-specific process window.
Vat photopolymerization also imposes rheological constraints. Acrylic formulations of this type are frequently supplied at viscosities between 200 mPa·s and 500 mPa·s at 25 °C, although impact-modified and pigmented grades can exceed that range. If the resin is processed below 20 °C, viscosity increases and recoat time lengthens. If the vat is heated above 35 °C, dark polymerization may accelerate and reduce shelf stability. The manufacturer’s technical data sheet should be consulted for the exact viscosity specification and temperature-viscosity curve. Recoat parameters should be adjusted whenever the vat temperature or ambient humidity changes outside the validated range.
Application boundaries for Loctite 3D 3843 HDT60 derive from the heat deflection limit and the resin’s impact-resistant character. Typical production uses include ergonomic assembly aids, robotic end-effector fingers, jigs and fixtures, functional housings, snap-fit enclosures, and short-run replacement parts that are not exposed to continuous heat above 50–60 °C. The material should not be specified for chemical immersion service, food-contact surfaces, or continuous under-hood automotive service unless supplementary testing demonstrates compliance with the relevant regulations and performance requirements. Because the resin is an acrylate, it may exhibit sensitivity to aggressive cleaning agents; compatibility with water-based coolants and mild detergents should be checked on printed coupons rather than assumed from polymer class. The absence of published long-term aging data for this formulation means that fatigue, creep, and UV-weatherability predictions require application-specific validation.
Regulatory Documentation and Workplace Handling
Commercial documentation for Loctite 3D 3843 HDT60 includes a safety data sheet and a technical data sheet. Regulatory compliance is typically declared under the European Union’s Registration, Evaluation, Authorisation and Restriction of Chemicals regulation and the Restriction of Hazardous Substances Directive; the applicable product-specific status must be confirmed from the current SDS and compliance certificates. Industrial handling should follow local regulations for acrylate resins: nitrile gloves, safety eyewear, and ventilation are required for uncured resin. Spills should be contained with UV-opaque absorbents because uncured resin remains reactive until polymerization is completed. Cured waste is generally classified differently from uncured waste but should not be discharged to water systems. These handling boundaries are not unique to this product, but they are operationally relevant for vat photopolymerization lines.
