Manufacturing
Snap-In Tray Inserts for Assembly Lines
Snap-in tray inserts with barbed pegs and soft seats, 500 in one order for an electric motor line.
Fused Deposition Modeling TPU 92A For Durable, Tear-Resistant Flexible Parts
Large Build Volume
Up to 914 × 610 × 914 mm
FDM material
TPU 92A overview
Stratasys TPU 92A is a flexible, rubber-like material for Fused Deposition Modeling (FDM) parts that bend, stretch and spring back. It replaces moulded rubber parts with no tooling, absorbs impact and resists tearing and abrasion through repeated flexing. It stands up to oils, greases and engine coolant at room temperature and stays flexible well below freezing. Use it for gaskets and seals, vibration dampers, grommets and bump stops, flexible ducts and protective boots.
How TPU 92A is manufactured
TPU 92A is manufactured using Fused Deposition Modeling (FDM), which extrudes the elastomer layer by layer and builds flexible parts without tooling. It extends FDM into true elastomer applications, producing compliant parts such as boots and protective interfaces while maintaining repeatable layer-based production.
- Hardness
- Shore 92A
- Lead time
- 4 business days
- Layer height
- 0.178 or 0.254 mm
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Industry applications
Industry applications for TPU 92A
Unlike rigid thermoplastics, TPU 92A stretches, absorbs impact energy and rebounds. Its Shore 92A hardness balances flexibility and durability for functional components and repeated-use parts such as dampers and compliant seals.
TPU 92A suits flexible hoses, tubes and air ducts for low-pressure airflow and fluid handling. From rapid prototyping to production runs, teams rely on it to reduce assembly complexity through consolidated part designs.
Consumer product teams use TPU 92A for mass customization of grips, phone cases, bumpers, shoe inserts, flexible hinges, latches and protective covers, where its toughness and abrasion resistance hold up to daily handling. Wearable device teams use it for fit-and-function prototypes and device housings.
Automotive
Grommets, Bump Stops & Weatherstripping
Flexible grommets, bump stops and weatherstripping that stand up to prolonged contact with oils, greases and coolant at room temperature.
Industrial Design
Gaskets, Seals & Vibration Dampers
Enclosure gaskets, seals and dampers, made soft or firm by infill, with 21% compression set after 22 hours at 23 °C.
Manufacturing
Snap-In Tray Inserts for Assembly Lines
Assembly line builders use flexible FDM TPU for snap-in tray inserts that give components a soft, non-marring seat. Integral barbed pegs push through plain holes in the tray plate and lock, so the tray needs no screws or adhesive, while in a mold the barbs would be undercuts needing side actions. For an electric motor line, Forge supplied 500 inserts in a Shore 90A-class FDM TPU in one order, with first parts shipping in about a week and the full run over roughly three weeks.
- Snap-in tray inserts
- Non-marring part seats
- Protective rings and collars
Automotive
Grommets, Bump Stops & Weatherstripping
Automotive teams use TPU 92A for custom flexible components that withstand repeated flexing, replacing traditionally molded rubber parts with printed alternatives and no tooling. At room temperature, it stands up to prolonged exposure to transmission fluid, motor oil, greases and engine coolant, and to short-term contact with fuels, brake fluid and washer fluid. That suits wire harness grommets, suspension bump stops, custom weatherstripping and flexible cabin and body-side air ducts.
- Wire harness grommets
- Suspension bump stops
- Custom weatherstripping
Industrial Design
Gaskets, Seals & Vibration Dampers
Product and equipment designers use TPU 92A for custom gaskets and seals with complex geometries that are difficult to achieve with traditional die-cutting, along with pneumatic seals and diaphragms, vibration dampening mounts and protective bellows and boots for enclosures and fixtures. Infill sets how soft or firm a printed elastomer part feels, so one material covers cushioned dampers and solid seals. Compression set is 21% after 22 hours at 23 °C, rising to 44% at 70 °C.
- Enclosure gaskets and seals
- Pneumatic seals and diaphragms
- Vibration dampening mounts
Performance data
Technical performance for TPU 92A
Values from the Stratasys FDM TPU 92A (Black) datasheet, tested to the standard listed with each property.
Mechanical performance
Mechanical properties
Strength, elongation and the tensile stress at 100% and 300% elongation show how far TPU 92A parts stretch and how firmly they pull back, the figures to use when sizing seals, boots and dampers. Values are given for parts built flat (XY) and on edge (XZ), and elongation at break is highest in parts built flat. FDM parts are weakest across their layer lines, so keep the direction that stretches hardest in the build plane.
Tear strength and compression set show how parts resist tearing at notches and recover after being held compressed. Compression set rises with temperature, so allow for creep in seals and dampers that stay loaded. Flexural specimens bend without breaking.
PropertyValue
- Shore Hardness (molded)ASTM D2240
- 92A
- Tensile Strength, Yield (XY)ASTM D638
- 15.6 MPa
- Tensile Strength, Yield (XZ)ASTM D638
- 16.1 MPa
- Tensile Strength at Break (XY)ASTM D638
- 16.8 MPa
- Tensile Strength at Break (XZ)ASTM D638
- 17.4 MPa
- Tensile Modulus (XY)ASTM D638
- 15.3 MPa
- Tensile Modulus (XZ)ASTM D638
- 20.7 MPa
- Elongation at Yield (XY)ASTM D638
- 466 %
- Elongation at Yield (XZ)ASTM D638
- 385 %
- Elongation at Break (XY)ASTM D638
- 552 %
- Elongation at Break (XZ)ASTM D638
- 482 %
- Tensile Stress at 100% Elongation (XY)ASTM D638
- 6.9 MPa
- Tensile Stress at 100% Elongation (XZ)ASTM D638
- 7.6 MPa
- Tensile Stress at 300% Elongation (XY)ASTM D638
- 11.0 MPa
- Tensile Stress at 300% Elongation (XZ)ASTM D638
- 11.9 MPa
- Flexural Strength, no break (XY / XZ)ASTM D790
- 1.8 / 2.4 MPa
- Flexural Modulus (XY / XZ)ASTM D790
- 25.6 / 36.9 MPa
- Compressive Strength, Yield (XY / XZ)ASTM D695
- 2.6 / 2.6 MPa
- Compressive Modulus (XY / XZ)ASTM D695
- 16.9 / 16.9 MPa
- Tear Strength, Stamped (XY)ASTM D624-C
- 84.6 N/mm
- Compression Set, XY (22 h at 23 °C)ASTM D395
- 21 %
- Compression Set, XY (22 h at 70 °C)ASTM D395
- 44 %
Material makeup
Physical properties
Specific gravity gives part weight for a given volume, a little above water for TPU 92A. After 1,000 hours of accelerated UV and condensation cycling, Stratasys measured a moderate loss of ultimate strength while elongation stayed high, a useful guide for flexible parts that see sunlight.
PropertyValue
- Specific Gravity (23 °C)ASTM D792
- 1.135
- Ultimate Strength Change after 1,000 h UV (XY)ASTM G154
- -15.3 %
Heat performance
Thermal properties
The low glass transition temperature keeps TPU 92A flexible and rubbery well below freezing, while heat deflection marks where parts start to soften under load. Heat deflection was measured on molded specimens and printed parts soften at lower temperatures, so compare it with the service temperature before specifying parts mounted near an engine.
Thermal expansion is high, as for most elastomers, and Stratasys publishes it for each axis, so allow for it in seals and fits that span temperature changes.
PropertyValue
- HDT @ 0.45 MPa / 66 psi (molded)ASTM D648 Method B
- 38 °C
- HDT @ 0.10 MPa / 15 psi (molded)ASTM D648 Method B
- 56 °C
- Glass Transition Temperature (Tg, inflection point)ASTM D7426
- -42 °C
- Vicat Softening Temperature (B/50)ASTM D1525
- 95 °C
- Coefficient of Linear Expansion (X)ASTM E831
- 139 ×10⁻⁶/K
- Coefficient of Linear Expansion (Y)ASTM E831
- 159 ×10⁻⁶/K
- Coefficient of Linear Expansion (Z)ASTM E831
- 176 ×10⁻⁶/K
Functional performance
Electrical properties
Stratasys publishes volume resistivity for two build orientations, and it is about a thousand times higher for parts built on edge (XZ) than for parts built flat (XY). Use the value for the orientation you will print when a flexible part sits near electrical components.
PropertyValue
- Volume Resistivity (XY)ASTM D257
- 6.09×10¹⁰ Ω·cm
- Volume Resistivity (XZ / ZX)ASTM D257
- 7.17×10¹³ Ω·cm
Compatibility data
Chemical properties
Each chemical class is rated at room temperature, from excellent for prolonged exposure, through good for short-term contact, to poor. TPU 92A rates best with the oils, greases and coolants found around vehicles and machinery, and worst with acids and strong solvents.
Stratasys publishes these as relative ratings rather than results of a specific test, so treat them as screening guidance and confirm them with application-specific testing before production release.
ChemicalRating
- Transmission fluid
- Excellent
- Motor oil
- Excellent
- Petroleum greases
- Excellent
- Silicone greases and oils
- Excellent
- Antifreeze / engine coolant
- Excellent
- Deionized water
- Excellent
- Petroleum fuels
- Good
- Brake fluid
- Good
- Windshield washer fluid
- Good
- Alcohols (ethanol)
- Good
- Weak bases (pH 8–10)
- Good
- Strong bases (pH > 10)
- Good
- Aliphatic hydrocarbons (methane, propane, butane)
- Limited
- Aromatic hydrocarbons (benzene)
- Limited
- Esters
- Limited
- Halogenated hydrocarbons (CFCs)
- Poor
- Ketones (acetone, MEK)
- Poor
- Phenols
- Poor
- Weak acids (pH 3–6)
- Poor
- Strong acids (pH < 3)
- Poor
Related materials
Compare TPU 92A with similar materials
Resources
Datasheets and design resources
Datasheets, design guidance and supplier documentation for TPU 92A.
Download center
Access the most recent datasheet and supporting documentation maintained by our engineering team.
TPU 92A datasheetDesign guidelines
Explore printable geometry recommendations, wall thickness tips, and finishing playbooks for FDM.
View FDM design guide
Advanced Manufacturing
Built with Precision FDM Technology
TPU 92A is manufactured using Fused Deposition Modeling (FDM) technology, offering reliable performance for functional prototypes and end-use parts.
- Tolerance
- ±0.25 mm or ±0.3%, whichever is greater
- Production capacity
- Multiple parts and assemblies in each build
- Quality control
- In-process monitoring and batch traceability for consistent part quality and material properties
- Colours & finishes
- Black; media finishing, light sanding and surface sealing
Frequently Asked Questions
Frequently asked questions about TPU 92A
Can't find the answer you're looking for? Reach out to our customer support team.
- TPU 92A is a rubber-like elastomer with a Shore 92A hardness that balances flexibility and durability. Parts built flat stretch to 552% before breaking, and a tear strength of 84.6 N/mm helps thin lips and notched features resist tearing. Compression set is 21% after 22 hours at 23 °C, and its -42 °C glass transition keeps it flexible well below freezing.
- TPU 92A is printed by Fused Deposition Modeling (FDM), which extrudes the elastomer layer by layer and builds flexible parts directly from CAD without tooling. Teams use it for flexible air and fluid routing, seals and gaskets for fixtures and enclosures, vibration dampening components and protective covers, from prototypes to production runs.
- TPU 92A is used across automotive, industrial equipment, consumer products and electronics for flexible hoses, tubes and air ducts, seals and gaskets, vibration dampers, protective covers and cases, flexible joints and compliant hinges, automotive grommets, boots and trim interfaces, consumer product grips and electronic device gaskets.
- TPU 92A offers rubber-like Shore 92A flexibility with high elongation (552% XY / 482% XZ) and abrasion resistance. At room temperature, Stratasys rates it excellent for prolonged contact with oils, greases, transmission fluid and coolant, and good for short-term contact with alcohols, windshield washer fluid and brake fluid. It is useful for custom-fit seals, dampers and protective interfaces.
- TPU 92A is rated poor with acids, ketones, phenols and halogenated hydrocarbons, and moderate with aromatic and aliphatic hydrocarbons and esters. It has lower heat resistance than rigid engineering FDM materials, with a heat deflection temperature of 38 °C at 0.45 MPa on molded specimens. Its mechanical response depends on build orientation. Compression set rises from 21% at 23 °C to 44% at 70 °C, so allow for creep in parts that stay under load. FDM surface porosity can affect long-duration fluid sealing, so seal parts that must hold fluid.
- Stratasys measures a heat deflection temperature of 38 °C at 0.45 MPa on molded specimens, and printed parts soften at lower temperatures under load, so TPU 92A suits parts that work at room temperature and in the cold. Its glass transition temperature of -42 °C keeps it flexible well below freezing. After 1,000 hours of accelerated UV and condensation cycling, ultimate strength fell by 15.3% and elongation at break was still about 470%, so parts keep most of their strength and stretch after long UV exposure.
- Stratasys publishes no biocompatibility, food-contact, flammability or sterilization data for TPU 92A, so it is used for wearable fit-and-function prototypes and device housings rather than parts that stay in skin or food contact. For skin-contact wearables, SLS TPU 88A has supplier cytotoxicity, skin irritation and sensitization test results.
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- Engineering materials
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- Part quantities
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