Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Product Highlights
- One part, low slump, solvent-free translucent silicone
- Cures at room temperature upon exposure to atmospheric moisture
Applications & Uses
- Markets
- Applications
- Application Area
- Compatible Substrates & Surfaces
- Plastics & Elastomers End Uses
- Applications
- Well suited for use as an adhesive for bonding and sealing silicone materials
- For applications requiring the bonding of silicone to metals, urethanes and various other substrates
- Instructions for Use
Apply MED-1137, supplied in cartridges, with the use of appropriate dispensing equipment. Do not store alcohols near the worksite as traces of alcohol inhibit the adhesive’s catalytic system.
Surface Preparation
Thoroughly clean surfaces being bonded or built-up with silicone adhesive using a non-oily cleaner or mild soap to remove any surface contaminants. Do not use synthetic detergents or oil-based soaps, as they may be absorbed and subsequently leach out. Rinse first with hot water, followed by a thorough rinse using distilled water. Use compatible degreasers to clean metal surfaces.
Bonding Applications
Spread a layer of silicone adhesive on one of the surfaces. Squeeze both surfaces together to bond. Apply sufficient pressure to ensure full contact without forcing the silicone adhesive from between the pieces. Note: Some bonding applications may require the use of a primer. NuSil Technology’s MED-160 is recommended. For more information on primer selection, visit www.nusil.com and review Choosing a Silicone Primer/Adhesive System.
Curing Time
Curing or vulcanization time depends upon the thickness of the silicone adhesive layer, relative humidity, and accessibility of atmospheric moisture to the curing adhesive. For sections of typical thickness, a relative humidity level between 20-60% is recommended to cure the adhesive at room temperature. Generally the adhesive forms a thick, tack-free outer skin for thick section films within a few minutes after application. The vulcanization rate slows when exposing very thin films to excessive humidity (80% relative air humidity). For films below 80 microns, the relative air humidity should be within 30% - 50%. Because MED-1137 cures upon exposure to atmospheric moisture, keep tubes tightly closed when not in use. A plug of cured material may form in the tip of the tube. Remove or dispense the plug from the tube before using.
Properties
- Appearance
- Translucent
- Typical Properties
- Cured Properties
| Value | Units | Test Method / Conditions | |
| Mix Rat io | 1 PART | — | — |
| Rheology | Thixotropic / non-slump | — | — |
| Durometer Type A | 30.0 | — | — |
| Elongat ion | 560.0 | % | — |
| Extrusion Rat e | 180.0 | g/minute | — |
| Flow Rat e | 0.2 (5.08 ) | in (mm) | — |
| Specific Gravity | 1.07 | — | — |
| Stress at Strain 200 % | 170 (1.17) | psi (MPa) | — |
| Tack Free Time | 9.0 | minutes | — |
| Tensile | 700 (4.83 ) | psi (MPa) | — |
| Value | Units | Test Method / Conditions | |
| Cure Type | RTV | — | — |
| Cure at RTV | 72.0 | hours | — |
| Cure System | Acetoxy | — | — |
Packaging & Availability
- Country Availability
- Regional Availability