Prototype membranes
Prototype membranes to check shape and deformation.
Vacuum casting · Custom parts
Vacuum casting
of Transparent Flexible PU.
Flexibility that reveals the interior. We manufacture Transparent Flexible PU parts for protectors, membranes, and product-like prototypes.
Get your quoteQuote in 24 h · Engineering review
- Manufacturing
- Pre-production runs in silicone molds
- Delivery from
- 10 working days
- Material
- PU Vacuum casting
01 / Why choose this material
Properties and uses
of Transparent Flexible PU.
Cast polyurethane combining elasticity and transparency for prototypes and pre-production runs with a product-like appearance.
This polyurethane family combines elasticity and transparency via vacuum casting. Clarity depends on the polyurethane resin, wall thickness, curing, and mold. It allows validating visible flexible parts in a pre-production run, with behavior that must be defined for each application.
Learn about the vacuum casting process ↗Properties of Transparent Flexible PU
Reference · Hei-Cast T0387, cured material
- Density · cured material
- 1.14–1.16 g/cm³
- Configurable hardness
- 30–80 Shore A
- Tensile strength · depends on hardness
- 1,5–40 MPa
- Elongation at break
- 260–300 %
- Presentation
- Transparent polyurethane
Hei-Cast T0387 values: the component ratio allows hardness levels from 30 to 80 Shore A. Tensile and elongation ranges correspond to distinct formulations and are not freely combinable. Cured material density; confirm your part's hardness.
Material datasheets
- Flexible
- Transparent
- Product appearance
- Reproduces mold shapes and textures
Applications of transparent flexible PU
Transparent protectors
Transparent protectors that allow viewing the covered surface.
Flexible demonstration elements
Flexible elements for mechanism demonstration.
Aesthetic pre-production runs
Aesthetic pre-production runs combining touch and transparency.
02 / A choice based on usage
Choose transparent flexible PU
according to your part.
These criteria help define the material, geometry, and working conditions before manufacturing.
01
Elasticity
Define hardness, thickness, and deformation. Transparency does not determine the material's touch on its own.
02
Visual finish
The mold and polyurethane resin condition the clarity. Specify which faces must allow visualization.
03
Durability and environment
UV exposure, chemicals, and temperature can change performance over time.
The part's function is the starting point.
Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.
03 / Finishing also counts
Finishes and appearance
of transparent flexible PU.
Material and process define the surface. These are the key factors for specifying your part's appearance.
Casting finish
The surface reproduces the mold finish. Polyurethane resin, the pattern, and curing determine the final appearance.
Texture and appearance
Indicate visible faces and pattern finish. Mold texture and wall thickness influence part appearance.
Your part requirements
Include the expected appearance and usage conditions in your request to confirm the quote.
04 / From design to quote
Vacuum casting
of transparent flexible PU.
Transparent flexible PU manufacturing starts with a pattern defining the shape and texture. From it, the silicone mold is prepared, vacuum casting is performed, and the polyurethane resin is cured before extracting and finishing the part.
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Upload your file and request a quotePart tolerances
Polyurethane resin, the pattern, the mold, and shrinkage during curing influence the dimensions. Attach functional dimensions to confirm feasibility; CNC machining tolerances should not be transferred directly.
Runs and molds
The pattern and mold are distributed among the pre-production parts. Geometry, polyurethane resin, and mold life condition the quantity and cost.
Quote in 24 hours
Parts from 10 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.
How much it costs to manufacture
The price of your part
in transparent flexible PU.
The price of a transparent flexible PU part includes pattern preparation, the silicone mold, polyurethane resin, and vacuum casting. Quantity and finishes determine how the pre-production cost is distributed.
Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.
Frequently asked questions
Before manufacturing
in transparent flexible PU.
Properties, applications, and manufacturing: answers to prepare your request.
What is transparent flexible PU and what properties does it have?
Vacuum-cast polyurethane combines elasticity and transparency for prototypes and pre-production runs with a product-like appearance. Hei-Cast T0387 values: the component ratio allows hardness levels from 30 to 80 Shore A. Tensile strength and elongation ranges correspond to distinct formulations and are not freely combinable. Cured material density; confirms the hardness of your part.
What parts can be manufactured in transparent flexible PU?
You can manufacture prototype membranes, transparent protectors, flexible demonstration elements, and aesthetic pre-production runs. Vacuum casting in silicone molds allows repeating shapes and textures for a pre-production run. Define loads, environment, and finish so we can review the application.
What material allows manufacturing a flexible and transparent part?
Transparent flexible PU vacuum casting is a catalog option. It allows validating protectors, membranes, and product-like parts. Hardness, clarity, and resistance must be confirmed for the polyurethane resin and selected thickness.
Can the same transparent part be obtained with 3D printed TPA?
The 3D printing TPA in the catalog is opaque, so it does not provide that transparency. If you need to combine elasticity and clarity, vacuum casting of transparent flexible PU is the process to consider for the pre-production run.
What does the transparency of a flexible PU casting depend on?
It depends on the formulation, thickness, mold finish, curing, and the absence of bubbles. Aging due to light, heat, or contact products must also be considered. Specify usage and visible surfaces when requesting a quote.
How much does it cost to vacuum cast a transparent flexible PU part?
The price of a transparent flexible PU part includes pattern preparation, the silicone mold, polyurethane resin, and vacuum casting. Quantity and finishes determine how the pre-production cost is distributed. Upload your 3D file to the Proto&Go! platform to receive a quote with cost and lead time.
What tolerances can I request for a transparent flexible PU part?
Polyurethane resin, the pattern, the mold, and shrinkage during curing influence the dimensions. Attach functional dimensions to confirm feasibility; CNC machining tolerances should not be transferred directly.
What file do I need to manufacture a transparent flexible PU part?
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Compare before choosing
Other options for your part.
Your next part
Shape
in transparent flexible PU.
Upload the 3D file. We review feasibility and send you the quote.