Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
Features & Benefits
- Ready-to-Use Product Features
- Product Highlights
- Fully compounded, platinum-catalyzed, dimethyl-methylvinyl siloxane elastomers dispersed in xylene
- Excellent physical properties
- Usable life can be extended with refrigeration
Applications & Uses
- Markets
- Applications
- Application Area
- Application Method
- Cure Method
- Plastics & Elastomers End Uses
- Applications
- Suitable for dip casting and heat-curing of thin elastomeric films
- For use as an adhesive for bonding and sealing silicone together
- Low viscosity makes dispersions ideal for use as sprayable coatings
- Instructions for Use
Mixing
Thoroughly stir material to ensure homogeneity. Exercise care to prevent solvent loss during deairing. Accomplish additional dilution for thin film applications by adding appropriate solvent. Mixer design/size/type, blade/propeller type, shear/RPM levels, and heat generated during mixing, are important parameters and should be addressed in order to have an adequately mixed dispersion.
Warning: Consult the MSDS for MED-2014 prior to use, as its solvent carrier is hazardous.
Coating and Use
Dispersions are more commonly used in dip molding processes, but can also be sprayed or cast. Make sure to apply under a fume hood or in a well-ventilated environment. Care should be taken before placing coated mandrels or parts in oven due to the presence of solvent. Reference cure schedule for devolitilization times. For further information, please see NuSil's A Guide to Silicone Dispersions – Strategies for Processing and Troubleshooting.
Instructions for Use
Thin MED-2014 to the desired consistency with xylene, the suggested solvent. Mix the material thoroughly before use. Achieve best results by filtering the dispersion appropriately before use. Take care to avoid solvent evaporation and air entrapment. When using any solvent, always provide adequate ventilation and avoid skin contact. Follow manufacturer’s label instructions and refer to appropriate MSDS. The mold, mandrel, or part being coated with dispersion should be free from contamination, not inhibit the cure, and be able to withstand the cure cycle. Apply the dispersion by brushing, spraying, or dipping. Control the thickness by building up successive, thin (1-2 mil) coats. Allow the bulk of the solvent to evaporate between coats. When the desired thickness is obtained, set aside the coated object and allow the solvent to completely evaporate. Controlled low-humidity conditions will reduce bubbles while coating.
Caution
MED-2014 will cure in contact with most materials. Exceptions include butyl, latex, chlorinated rubbers, some RTV silicones, and unreacted residues of some curing agents.
Properties
- Physical Form
- Appearance
- Translucent
- Typical Properties
- Cured Properties
| Value | Units | Test Method / Conditions | |
| Viscosity | 1,800 (1,800 ) | cP (Mpa*s) | - |
| Non Volat ile Content | 35.0 | % | - |
| Elongat ion | 900.0 | % | - |
| Mix Rat io | 1 PART | - | - |
| Solvent | Xylene | - | - |
| Tear | 160 (28.22 ) | ppi (kN/m) | - |
| Tensile | 1,700 (11.72 ) | psi (MPa) | - |
| Value | Units | Test Method / Conditions | |
| Cure System | Platinum | - | - |
| Cure at 50 °C | 60.0 | minutes | - |
| Cure at 1500 °C | 60.0 | minutes | - |
| Cure at RTV | 3.0 | minutes | - |
Packaging & Availability
- Country Availability
- Regional Availability
Storage & Handling
- Storage and Handling
Most dispersions are stored prior to application. It is important to note that NuSil recommends keeping the dispersion in its original container when possible, tightly sealed and stored below 40º C. Care should be taken to prevent solvent evaporation and contamination during long or short term storage.