Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Applications & Uses
- Markets
- Plastics & Elastomers End Uses
- Processing
How to prepare pourable sealant.
1. Weigh out POLASTOSIL® M-2000 and POLASTOSIL® M-60 in clean and dry container with a capacity 5 times greater than the volume of the weighed rubber. There is no need to use containers that comply with specific requirements, for example plastic container may be used.
2. Weigh out recommended dosage of OL-1 catalyst.
3. Mix the ingredients. The catalyst must be evenly dissolved in the whole mass as it influences protection quality.
4.It is recommended to leave such a composition in a vacuum chamber (30-60 mbar) in order to vent it. During this treatment, which should be short (less than 5 minutes), at the beginning the composition foams and increases its volume approx. 5 times and then it returns to the original volume - when this happens, switch off vacuum and remove the container with a ready-to-use composition from the chamber. Fill the system with the composition.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Density at 25°C, min. | approx. 1.2 | g/cm3 | - |
| Hardness | 65 | Shore A | - |
| Viscosity | 45 000 ± 15000 | cP | - |
| pH | min. 4.5 | - | - |
| OL-1 Catalyst Dosage | 5 | % pbw | - |
| Volatile component content, not less than | 3 | % | - |
| Working life after adding 5-8 part by weight of OL-1 Catalyst (per 100 part by weight of Polastosil), min. | 30 | minutes | - |
| Gelation Time after Adding 5-8 Part by Weight of OL-1 Catalyst (per 100 part by weight of Polastosil), max. | 24 | hours | - |
| pH of water extract | min. 4.5 | - | - |
| Volume resistivity at temperature 20±5°C and air relative humidity 65±5%, min. | 1 x 10^13 | [om.cm] | - |
| Surface Resistivity at Temperature 20±5°C and Air Relative Humidity 65±5%, min. | 1 x 10^13 | [om] | - |
| Dielectric Loss Factor (tg δ) at the Frequency 106 Hz min. | 0.015 | - | - |
| Permittivity at the frequency 106 Hz, not less than | 3 | - | - |
| Dielectric Resistance at Temperature 20±5oC and Air Relative Humidity 65±5%, min. | 15 | kV/mm | - |
| Thermal Resistance | from -50 to +200 | °C | - |
| The Determination of the Comparative Tracking Index according to PN-EN 60112:2003 (CTI) | 600 | V | - |
Safety & Health
- System Protection
Clean, degrease and dry the system before filling. In order to increase the adhesion of the composition to the surface, the structure should be covered with a silicone primer – PRIMER S-1 and dried in room temperature for about 1 hour. Such a structure should be placed in a casing or a mold and filled with the composition (a mixture of a suitable POLASTOSIL® and OL-1 Catalyst) and then leave the structure open to cross-link and season for about 100 hours in room temperature. Air circulation is very important as during cross-linking ethanol is liberated, which must be released from hardened mass otherwise a reversion effect may occur. In the event of misrun casting, the fragments of rubber (pourable sealant) might be cut out and filled again. Also in the event of damaged electronic elements covered with rubber, it is possible to cut out surrounding sealant and replace the element and filled with a rubber composition of the same type.
Packaging & Availability
- Containers
Containers:
- 1 Kg
- 5 Kg
- 30 Kg
- 60 kg
Storage & Handling
- Storage
Storage: Store in original container, in dry storage rooms, at temperature below 30°C.
Warranty period: 12 months from the date of manufacture.