Urethane Casting Service
Instant quotes & DFM feedback
Production grade quality
Parts as fast as 7 days
Production Quality at Low Volumes
The urethane casting process is a quick, cost-effective way to produce 10-200 units with production-level quality. Typically, each silicone mold will produce 20 castings.
Complex Elastomeric Parts
Urethane casting is ideal for prototyping elastomeric parts such as complex gaskets and overmolds on rigid parts.
High Level of Detail
Urethane casting allows for almost limitless complexity, including sharp internal corners unachievable with CNC machining, and designs without draft or uniform wall-thickness that can’t be injection molded.
Urethane Casting Materials
ABS-Like
ABS-like FR V0
ABS-like, HT
Acrylic-Like
Nylon-like
Opaque Elastomer
POM-like
PP-like
Waterclear Elastomer
ABS-Like
Material Properties:
Hardness: 75-85 Shore D
Tensile Strength (Mpa): 42-73
Elongation %: 16-21
Impact Strength: 12 kJ/m2 0.58-2 ft-lb/in
Urethane Material Grade (Overseas):
Axson UP 8150
Urethane Material Grade (Domestic):
Rampf TP 4056
Color:
Natural, Yellow, Purple, Color Match
ABS-like FR V0
Material Properties:
Hardness: 78-85 Shore D
Tensile Strength (Mpa): 41-74
Elongation %: 15-24.5
Impact Strength: 10 kJ/m2 0.57-1.6 ft-lb/in
Urethane Material Grade (Overseas):
Heicast 8263
Urethane Material Grade (Domestic):
PTM&W PT8952
Color:
Natural, Black, White, Gray, Red, Yellow, Blue, Green, Orange, Purple, Color Match
ABS-like, HT
Material Properties:
Hardness: 75-86 Shore D
Tensile Strength (Mpa): 59-72
Elongation %: 45554
Impact Strength: 34-44 J/m .088-1.2 ft-lb/in
Urethane Material Grade (Overseas):
Axson UP 6160
Urethane Material Grade (Domestic):
Rampf TP 4007
Color:
Natural, Black, White, Gray, Red, Yellow, Blue, Green, Orange, Purple, Color Match
Acrylic-Like
Material Properties:
Hardness: 75-85 Shore D
Tensile Strength (Mpa): 17-70
Elongation %: 45524
Impact Strength: 60-70 J/m 0.5-1.1 ft-lb/in
Urethane Material Grade (Overseas):
Axson UPX 5210
Urethane Material Grade (Domestic):
Rampf OC 5086
Color:
Color Match
Nylon-like
Material Properties:
Hardness: 75-87 Shore D
Tensile Strength (Mpa): 60-75
Elongation %: 45334
Impact Strength: 17 kJ/m2 0.3-1.14 ft-lb/in
Urethane Material Grade (Overseas):
PELNOX 2180
Urethane Material Grade (Domestic):
Rampf TP 4020
Color:
Natural, Black, White, Gray, Red, Yellow, Blue, Green, Orange, Purple, Color Match
Opaque Elastomer
Material Properties:
Hardness: 20-90 Shore A
Tensile Strength (Mpa): 45309
Elongation %: 200-640
Impact Strength: N/A
Urethane Material Grade (Overseas):
Axson UPX 8400
Urethane Material Grade (Domestic):
Crosslink Triathane 3 Part System
Color:
Color Match
POM-like
Material Properties:
Hardness: 75-87 Shore D
Tensile Strength (Mpa): 54-79
Elongation %: 45484
Impact Strength: 13 kJ/m2 0.88-1.8 ft-lb/in
Urethane Material Grade (Overseas):
PELNOX XU 50
Urethane Material Grade (Domestic):
Rampf TP 4006
Color:
Natural, Black, White, Gray, Red, Yellow, Blue, Green, Orange, Purple, Color Match
PP-like
Material Properties :
Hardness: 60-83 Shore D
Tensile Strength (Mpa): 25-35
Elongation %: 50-155
Impact Strength: 75-100 kJ/m2 1.23-7.0 ft-lb/in
Urethane Material Grade (Overseas):
Axson UP 5690
Urethane Material Grade (Domestic):
Rampf TP 4004
Color:
Natural, Color Match
Waterclear Elastomer
Material Properties:
Hardness: 30-80 Shore A
Tensile Strength (Mpa): 1.5-40
Elongation %: 125-300
Impact Strength: N/A
Urethane Material Grade (Overseas):
Heicast T0387
Urethane Material Grade (Domestic):
BJB WC Series
Color:
Gray, Color Match
Urethane Casting Finishing Options
Matte
Glossy
Light Texture (MT11010 Equivalent)
Medium Texture (MT11020 Equivalent)
Heavy Texture (MT11030 Equivalent)
Matte
Description
A smooth finish that typically doesn’t reflect light. This finish isn’t flat and is sometimes referred to as eggshell.
Applications
Can be used for any durometer of plastic and will provide a smooth surface that can be useful for smooth parts that don’t require a gloss or texture.
Texture
Smooth, not textured.
Glossy
Description
A shiny or reflective surface finish that’s extremely smooth.
Applications
Can be used for any durometer of plastic, but it is typically used for parts needing a reflective or clear appearance. It can also be used for softer parts that need to seal off against other parts, such as an o-ring.
Texture
Shiny and extremely smooth.
Light Texture (MT11010 Equivalent)
Description
A dull matte finish that has a sand-like appearance.
Applications
Can be used for any durometer of plastic, but is typically used on hard plastic-like housings or cases that require a cosmetic light texture appearance for aesthetics or added grip.
Texture
Lightly textured.
Medium Texture (MT11020 Equivalent)
Description
A more pronounced surface graining for items that require more texture.
Applications
Can be used for any durometer of plastic, but is typically used on hard plastic-like housings or cases that require a cosmetic medium texture appearance for aesthetics or added grip.
Texture
Medium texture.
Heavy Texture (MT11030 Equivalent)
Description
The most pronounced surface graining for items that require the highest level of texture.
Applications
Can be used for any durometer of plastic, but is typically used on hard plastic-like housings or cases that require a cosmetic heavy texture appearance for aesthetics or added, heavy grip.
Texture
Heavy texture.
Urethane Casting Secondary Operations
Pad Printing
Applying an ink-based, 2D design to a 3D surface
Painting
Applying primer, top coat, EMI (copper) paint, in both standard and Pantone colors.
Threaded Inserts
From Prototype to Production
Concept Stage Urethane Casting
Looks-like models for marketing photography, investor pitches, and trade shows
Early Prototyping Stage Urethane Casting
Prototype elastomeric parts such as complex gaskets
Late Prototyping Stage Urethane Casting
Cost effective way to produce 100 EVT units before cutting injection molding tool
Low-volume Production Urethane Casting
Low-volume production orders for customized, small-batch products (20-200 units at a time)
Our Quality Promise
- Inspection reports included with every order
- 100% visual inspection for every urethane cast part
- Highly vetted urethane casting partners
- Quality guaranteed. If your parts aren’t made to spec, we’ll make it right.
What is Urethane Casting
About the Urethane Casting Process
Urethane casting (also known as RTV molding, cast urethane, and silicone molding) is a fabrication method that uses silicone molds to produce production-quality plastic parts.
Urethane Casting production consists of three main steps:
1. Build a master pattern using 3D printing or CNC machining
2. Build the mold by pouring platinum silicone around master
3. Pour liquid polyurethane resin into mold, create polyurethane casting under vacuum
Advantages of Urethane Casting
With urethane casting, you can get production quality parts at low volumes and without the high costs and lead times of steel or aluminum tooling. This is helpful for bringing new products to market where you may want production-grade products to test with new customers and markets and validate your design hypotheses before making a substantial investment to scale manufacturing.
Urethane Casting Design Considerations
If you are familiar with designing parts for injection molding, you can apply the same best practices and rules of thumb to design parts for urethane casting.
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