Silicone Rubber
Four product series, 26 grades, full mechanical data — hardness, density, tensile strength, elongation, tear strength, shrinkage and plasticity. Use this page to shortlist a grade, then send us your application and we will confirm the fit.
TN-7X0 Series — HTV Silicone Rubber
The workhorse range: translucent solid silicone rubber for extrusion and compression moulding, from 5 to 90 Shore A. Good rebound resilience, good mould release, excellent processability.
| Grade | Hardness (Shore A) | Density (g/cm³) | Tensile (MPa) ≥ | Elongation (%) ≥ | Tear strength (kN/m) ≥ | Shrinkage (%) | Plasticity |
|---|---|---|---|---|---|---|---|
| Appearance | Translucent solid, without obvious mechanical impurities | ||||||
| TN-705 | 5±1 | 1.03±0.03 | 1 | 300 | 4 | 3.8~4.4 | 80~120 |
| TN-710 | 10±2 | 1.04±0.03 | 3.0 | 500 | 8 | 3.7~4.3 | 120~140 |
| TN-720 | 20±2 | 1.06±0.03 | 5.0 | 700 | 11.5 | 3.7~4.3 | 120~160 |
| TN-730 | 30±2 | 1.08±0.03 | 7.0 | 600 | 12 | 3.6~4.1 | 140~180 |
| TN-740 | 40±2 | 1.12±0.03 | 8.0 | 480 | 12 | 3.3~3.9 | 150~190 |
| TN-750 | 50±2 | 1.15±0.03 | 8.0 | 400 | 12.5 | 3.1~3.7 | 180~220 |
| TN-760 | 60±2 | 1.19±0.03 | 7.5 | 340 | 12 | 2.9~3.5 | 210~250 |
| TN-770 | 70±2 | 1.22±0.03 | 7.5 | 260 | 12 | 2.8~3.4 | 270~310 |
| TN-780 | 80±2 | 1.24±0.03 | 7.0 | 160 | 10 | 2.7~3.3 | 310~370 |
| TN-790 | 89±2 | 1.25±0.03 | 5.5 | 70 | 8 | 2.5~3.1 | 320~380 |
Values are typical, not guaranteed maxima. Left column = grade; remaining columns = properties. Scroll horizontally on small screens.
LSR7130–7160 — Liquid Silicone Rubber
Two-component liquid silicone rubber (A/B) for injection moulding. High transparency, tight hardness tolerance, suitable for keypads, seals and medical-grade parts.
| Grade | Hardness (Shore A) | Density (g/cm³) | Tensile (MPa) ≥ | Elongation (%) ≥ | Tear strength (kN/m) ≥ | Viscosity (mPa·s) |
|---|---|---|---|---|---|---|
| Appearance | Translucent, without obvious mechanical impurities | |||||
| LSR7130A/B | 30±2 | 1.08±0.03 | 4.0 | 550 | 12 | — |
| LSR7140A/B | 38~39 | 1.09±0.03 | 3.5 | 300 | 10 | 100000 |
| LSR7150A/B | 50±2 | 1.16±0.03 | 6.5 | 450 | 15 | — |
| LSR7160A/B | 60±2 | 1.18±0.03 | 6.0 | 350 | 15 | — |
Values are typical, not guaranteed maxima. Left column = grade; remaining columns = properties. Scroll horizontally on small screens.
TN-2920H/YY — High Tear Strength HTV
High tear-resistance grade for parts that get pulled, flexed or pinched — gaskets, sleeves, cable accessories. Tear strength up to 25 kN/m at 50 Shore A.
| Grade | Hardness (Shore A) | Density (g/cm³) | Tensile (MPa) ≥ | Elongation (%) ≥ | Tear strength (kN/m) ≥ | Shrinkage (%) | Plasticity |
|---|---|---|---|---|---|---|---|
| Appearance | Transparent or beige solid, no obvious mechanical impurities | ||||||
| TN-2920H/YY | 20±2 | 1.08±0.03 | 6.0 | 650 | 10 | 3.7~4.3 | 120~150 |
| TN-2930H/YY | 30±2 | 1.10±0.03 | 7.0 | 700 | 12 | 3.5~4.1 | 175~190 |
| TN-2940H/YY | 40±2 | 1.12±0.03 | 8.0 | 700 | 18 | 3.3~3.9 | 180~205 |
| TN-2950H/YY | 50±2 | 1.15±0.03 | 8.0 | 600 | 25 | 3.1~3.7 | 210~230 |
| TN-2960H/YY | 60±2 | 1.17±0.03 | 8.0 | 400 | 20 | 2.9~3.5 | 245~265 |
| TN-2970H/YY | 70±2 | 1.19±0.03 | 8.0 | 380 | 20 | 2.8~3.4 | 285~305 |
| TN-2980H/YY | 80±2 | 1.22±0.03 | 8.0 | 200 | 15 | 2.7~3.3 | 305~335 |
Values are typical, not guaranteed maxima. Left column = grade; remaining columns = properties. Scroll horizontally on small screens.
TNA/B — Platinum Vulcanizing Agent
Platinum-cure catalyst matched to our HTV and LSR grades. PS grades for moulding, PJ grades for extrusion. No peroxide by-products, no post-cure odour.
| Grade | Hardness (Shore A) | Process | Curing temp. | Appearance |
|---|---|---|---|---|
| TNA/B-25PS | 20~30 | Moulding | 95~135℃ | Transparent |
| TNA/B-45PS | 40~50 | Moulding | 95~135℃ | Transparent |
| TNA/B-65PS | 60~80 | Moulding | 95~135℃ | Transparent |
| TNA/B-45PJ | 40~50 | Extrusion | — | Transparent |
| TNA/B-65PJ | 60~80 | Extrusion | — | Transparent |
Values are typical, not guaranteed maxima. Left column = grade; remaining columns = properties. Scroll horizontally on small screens.
Approvals and Supply Format
Tested and certified
- Food contact — FDA 21 CFR 177.2600 and LFGB compliant grades available
- Heavy metals & PAHs — SGS report on file for every production batch
- REACH / RoHS — declaration issued per shipment on request
- VOM — low volatile grade for automotive and sealed assemblies
Packaging & lead time
TN-7X0 Series Technical Manual (PDF)
Complete datasheet for the TN-7X0 range — all ten grades, test methods, packaging and application notes. English edition.
Need a datasheet that is not listed here? Tell us the model number and we will send it directly.
