Material focus
TPV selection, applications, and sibling resin routing on this page.
TPV
TPV Injection Molding: Properties, Applications and Design Guide
TPV (Santoprene) is used on injection molded programs when vulcanized elastomer for seals and gaskets.
TPV
When to specify TPV
How procurement and design teams use TPV on injection molded programs.
TPV (Santoprene) is a vulcanized elastomer for seals, gaskets , and soft-touch overmolds. Buyers specify the commercial grade on the PO when known, or describe service temperature, chemical exposure, and mechanical targets so engineering can suggest a candidate resin. Quote with CAD and resin notes on the instant quote platform. NetProto builds one hardened steel tool with no minimum order quantity for production parts.
TPV vs SEBS is the usual split. Choose TPV when compression set and heat aging drive the seal. Stay with SEBS-based TPE when the part is a room-temperature soft grip. The SEBS card below covers that family. For fuel-system seals where fuel and oil resistance is the concern, see Fluorosilicone .
Key traits
Why buyers specify TPV
Engineering and sourcing highlights. No NetProto processing numbers on this page.
Sourcing
Grade and compliance context travels with CAD on the instant quote platform.
Program fit
First articles through production on one steel tool, no MOQ.
NetProto platform
Instant CAD quoting and DFM feedback before tooling release.
Tooling lead time
10 business days on qualified programs, depending on part size and complexity.
Common grades
Common TPV (Thermoplastic Vulcanizate) grades by use case
Pick one of these on the instant quote, or name any other commercial grade in the RFQ notes.
| Use case | Example grade | Typical parts |
|---|---|---|
| General purpose seal | Santoprene 101-73 | Gaskets, seals, and general flexible moldings |
| Overmold to ABS / PC / PMMA | Santoprene 8211-55 | Soft touch grips and consumer overmolds |
| Automotive interior | Santoprene 8221-65M300 | Low fogging interior seals and trim |
| UV resistant seal | Santoprene 121-73W175 | Window, door, and outdoor weather seals |
| Hard TPV | Santoprene 203-40 | Automotive boots, bellows, and clip components |
| 2K overmold to PC / ABS | Santoprene 291-75B150 | Plugs, bumpers, grommets, and soft touch grips |
Applications
Where this resin shows up on BOMs
Typical molded parts and what to specify on the purchase order.
| Application | Why this resin | Specify on the PO |
|---|---|---|
| Typical molded parts | Vulcanized elastomer for seals and gaskets. | TPV grade or family name on PO |
| Secondary features | Confirm fillers and color on datasheet | Compliance filters as requirements |
| Validation builds | First articles on production steel tool | Volume notes for cavity planning |
RFQ
Ready to quote? Have this information ready
Not sure whether the seal needs TPV or SEBS? See the comparison above. Prepare these details, then upload CAD on the instant quote platform.
Compression set requirement for the sealing function
Service temperature range, including peak exposure
Oil, coolant, or chemical exposure list
Dynamic fatigue: flex cycles or vibration in service
Hardness target (Shore A) and the PP substrate if overmolded
Commercial grade, or the use case to match (Shore hardness, compression set, UV, overmold vs seal extrusion)
Expected annual volume (helps cavity and tool planning)
Next step
Upload CAD for an instant quote
Grade not finalized? Note TPV on the RFQ and attach environment notes.
Compare and explore
Related guides
Pairwise comparisons and sibling material pages.
TPE family hub
Where TPV sits among elastomers.
TPE family hub
TPU
Abrasion and tear resistance.
TPU
SEBS
Soft-touch overmolds at lower cost.
SEBS
Silicone (LSR)
Thermoset reference for higher heat.
Silicone (LSR)
Materials library
Browse all resin guides.
Materials library
Reading a material datasheet
What the TDS (Technical Data Sheet) values mean for a molded part.
Reading a material datasheet
Specify resin grade on an RFQ
How to write grade, color, and fillers so the quote matches the part.
Specify resin grade on an RFQFAQ
TPV injection molding FAQ
Why choose TPV over SEBS-based TPE for seals?
TPV is dynamically vulcanized, so it usually keeps sealing force better under heat and long compression than SEBS compounds. At NetProto, share the compression set target and temperature range so DFM can confirm TPV is the right family.
When should I choose TPV?
Choose TPV when the seal must hold force under heat and repeated compression. For a room-temperature soft grip, SEBS-based TPE is often enough. Match the grade to the temperature range on the supplier datasheet.
Does this resin require drying?
Follow the supplier TDS for the exact grade. At NetProto, attach the datasheet when moisture-sensitive fillers are used.
What is the minimum order quantity for molded parts at NetProto?
NetProto has no minimum order quantity on molded parts from your production tool. Upload CAD on the instant quote platform to scope tooling and part pricing for your volume.
How do I quote this resin without a final grade selected?
List the resin family on the RFQ, attach environment notes, and upload CAD. Engineers narrow grades during DFM review.
Next step
Quote TPV parts with your CAD
Upload geometry and list TPV or the target grade on the instant quote platform.