Technical datasheet
OnFlex™ HT 40A-3S2131
Supplied byAvient (Formerly PolyOne)- Last Updated on Jul 13, 2026
OnFlex™ HT 40A-3S2131 by Avient (Formerly PolyOne) is an ozone resistant, hydrogenated styrenic block copolymer (SBC). It exhibits high heat resistance, excellent mechanical properties, wide hardness range, good processability, low compression set and stress relaxation. It is processed by injection molding and extrusion. OnFlex™ HT 40A-3S2131 is recommended for pipe seals. It complies with RoHS and EN 681-2.
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OnFlex™ HT 40A-3S2131 properties
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hardness | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hardness, Shore A | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Stress Relaxation | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Stress Relaxation | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tear Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Elongation at Break, MD | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Elongation at Break, TD | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength at Break, MD | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength at Break, TD | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
OnFlex™ HT 40A-3S2131 Processing Guidelines
Injection Molding Processing Guidelines
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Injection Rate | Visible After Login | Visible After Login | |
| Melt Temperature | Visible After Login | Visible After Login | |
| Mold Temperature | Visible After Login | Visible After Login | |