MDSI 7311 Transparent silicone adhesive
- MDSI 7311 has excellent non-corrosive adhesion to metals including copper, plastic, ceramics, glass, etc., without the use of a primer.
- Excellent resistance to high and low temperatures :-60℃ to 260℃.
- Excellent chemical resistance, resistance to moisture, dirt and other atmospheric components.
- Reduces mechanical stress and tension caused by mechanical, thermal shock and vibration. Easy to use single-component system.
MDSI 7311 is a one-component, quick skin curing, non-corrosive Transparent silicone adhesive that cures to form elastic silicone rubber when exposed to moisture.
| Test items | Test standard | Units | Value |
| Color | Visual | — | Colorless clear fluid |
| Viscosity | GB/T 2794-2022 | 25℃，cps | 45,000-50,000 |
| Density | GB/T 15223-2008 | 25℃，g/cm3 | 1.02±0.02 |
| Tack-free Time | GB/T13477.5-2002 | 25℃,55%RH,min | ≤10 |
| Hardness | GB/T 531.1-2008 | Shore A | 20-25 |
| Tensile strength | GB/T 528-2009 | MPa | ≥0.8 |
| Shear strength | GB/T 7124-2008 | Mpa，Al/Al | ≥0.8 |
| Elongation at break | GB/T 528-2009 | % | ≥190 |
| Dielectric strength | GB/T 1695-2005 | kV/mm（25℃） | ≥20 |
| Loss factor | GB/T 1693-2007 | （1MHz）(25℃) | 0.06 |
| Dielectric constant | GB/T 1693-2007 | （1MHz）(25℃) | ≤2.8 |
| Volume resistance | GB/T 1692-2008 | （DC500V）Ω· cm | ≥1.0*1014 |
- LED lamp seal, plastic metal shell seal; PCB board components, wiring harness fixed
- Coatings for electronic accessories, electrical appliances and communication equipment
Operation process
- Use the MDSI 7311 adhesive/sealant (see Handling Notes) onto one of the prepared surfaces, then quickly cover the other substrate to be bonded.
- Exposed to moisture, the newly applied material will “peel” in about 3-5 minutes at room temperature and 50% relative humidity. Any tools should be finished before this peel develops. The surface is easy to work with a spatula.
- The adhesive/sealant will be stick-free for about 10 minutes.
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