High-Tear Silicone Materials for Complex Custom Parts
Review high-tear HCR and LSR material options for custom silicone parts that require stronger edge integrity, stable molding, and better support for complex production requirements.
Built for Parts That Cannot Afford to Tear
High-tear silicone is selected when the finished part must stay clean, flexible, and reliable around thin edges, ribs, holes, lips, and difficult demolding areas. It helps your product move from a good design to a more stable molded part.
- Better tear resistance for complex geometries and thin-wall silicone structures.
- Useful for molded parts that face stretching, pulling, flexing, or repeated handling.
- Material choice can be reviewed together with mold design to reduce development risk before sampling.
Reference Performance Ranges
This table focuses on confirmed high-tear silicone material parameters from supplier data. Final material confirmation should still consider part geometry, mold release condition, pigment, curing route, and finished-part testing.
| Material Direction | Reference Series | Hardness Range in Table | Tensile Strength | Elongation | Tear Strength | Compliance / Processing Notes |
|---|---|---|---|---|---|---|
| High-Tear Fumed HCR | TYS171 series | Shore A 41 / 54 / 64 / 72 | 9.0–10.0 MPa | 500–800% | 30–40 N/mm | FDA passLFGB passOlive-oil migration passFor difficult demolding |
| High-Tear LSR 30A | TYL-6120/30-U | Shore A 30 | 8.2 MPa | 800% | 31.8 N/mm | TransparentGood colorabilityComplex LSR structures |
| High-Tear LSR 50A | TYL-6120/50-U | Shore A 50 | 10.0 MPa | 660% | 45.0 N/mm | TransparentHigh tear value in tableColorable |
| High-Tear LSR 70A | TYL-6120/70-U | Shore A 70 | 9.5 MPa | 480% | 35.2 N/mm | TransparentHigher hardness optionComplex molded parts |
Note: These values are reference ranges from material tables and should not be treated as blanket guarantees for every finished part. Final performance can change with pigment, geometry, wall thickness, mold design, curing route, post-processing, and end-use conditions.
High-Tear Material Support Backed by Factory Execution
Beyond tear-strength data, your project needs formulation flexibility, reliable silicone raw material sources, controlled production, and complete documentation support.
Dedicated Formulation Development
Exclusive material formulas can be developed around target tear resistance, hardness, color, processing behavior, and finished-part performance.
Premium Silicone Raw Material Source
High-tear HCR and LSR projects are supported by premium silicone raw materials from major suppliers, helping deliver strong performance and stable material quality.
Controlled Production Capacity
Strong manufacturing capability, controlled production environment, and repeat-order process control help maintain consistent part quality across batches.
Complete Documents & Certification Support
Material reports, batch records, inspection files, compliance support, and third-party testing coordination can be prepared according to your market needs.
Not sure if your part needs high-tear silicone?
Send your drawing or sample photo. We can review the tear-risk area, molding route, and material options before sampling.
Product Cases
These case directions show where high-tear silicone can be useful. The final material route should still be confirmed by drawing, wall thickness, demolding risk, hardness, and expected use condition.
Thin-Wall Seals & Gaskets
For sealing lips, thin edges, holes, and flexible gasket structures.
Complex Molded Diaphragms
For ribbed, folded, or thin-area structures with repeated flexing.
Pull-Resistant Caps & Plugs
For parts stretched during assembly, removal, or repeated handling.
Flexible Sleeves & Boots
For protective covers, sleeves, and soft structures with edge stress.
Precision LSR Components
For transparent or colored LSR parts with complex release conditions.
Manufacturing Routes for High-Tear Silicone Materials
Your high-tear silicone project needs more than the right material. The process route should help protect thin edges, reduce release risk, and keep complex details stable from sampling to repeat production.
HCR Compression Molding
You can use HCR molding for solid high-tear parts where mold temperature, pressure, flash, parting line, and demolding force must be controlled early.
LSR Injection Molding
You can develop complex LSR parts with better flow planning, controlled gate design, efficient curing, and repeatable release performance.
Transfer Molding
You can choose transfer molding when your part needs tighter control over material flow, cavity filling, insert positioning, and edge strength.
Extrusion
You can produce tubes, strips, sleeves, and profiles where continuous section stability, edge durability, and material consistency are important.
Finishing & Post-Processing
You can reduce tear-related defects through controlled trimming, deflashing, edge inspection, post-curing review, and finishing steps.
Material & Mold Evaluation
You can review material choice with mold structure, gate design, parting line, wall thickness, tolerance, and release risk before sampling.
What Helps Confirm Your High-Tear Material Route
Complete project information helps determine whether high-tear HCR, high-tear LSR, or a process adjustment is more suitable before sampling.
Need to Confirm a High-Tear Silicone Route?
Send the drawing, target hardness, tear-risk area, molding process, estimated quantity, and sample photos. Your high-tear HCR, high-tear LSR, and process options can then be reviewed before sampling.
High-Tear Silicone Material Questions
Key questions your team may need to confirm before high-tear HCR or LSR material selection.