Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Product Type
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Ready-to-Use Product Features
- characteristics
The cured polyurethane elastomer will meet or exceed UL 94 V-0 at 0.250 inches (6.35 mm). Additionally, GSP 1502T-2 exhibits good physical strength, toughness, and electrical properties. This polyurethane system bonds very well to metal and plastic substrates and can be used in applications where adhesion is needed.
GSP 1502T-2 was specially formulated to minimize filler settling for extended shelf-life. The system contains no TDI or heavy metal catalysts (e.g. mercury, lead, etc.).
GSP 1502T-2 can be used in applications involving encapsulation or potting of electrical components such as printed circuit boards (PCB), ballast transformers and telecommunications. It is particularly ideal in applications where a low viscosity, rapid cure, thermal conductivity and flame-retardancy are required.- features
Low Mixed Viscosity
Flexible
Fa st curing
Good flow and wet-out
Good adhesion and thermal conductivity
Meets UL 94 V-0, 0.250 inches (6.35 mm)
Applications & Uses
- Markets
- Applications
- Application Area
- Plastics & Elastomers End Uses
- Applications
Printed circuit boards (PCBs)
Switches
Transformers
Miscellaneous potting of electrical components- INSTRUCTIONS FOR USE
SIDE-BY-SIDE (SBS) CARTRIDGE:
GSP 1502T-2 is not available in Side-By-Side packaging because the parts-by-volume ratio of the system is incompatible with standard SBS cartridges. Contact GS Polymers technical department for system recommendations if your application requires a cartridgeable system.
TO MIX BY HAND:
Mix Ratio: Parts by Weight (pbw): .................................15 parts GSP 1502T-2 Part A to 100 parts GSP 1502T-2 Part B
Pot-Life: Do not mix more than can be applied in 5 minutes. Gel time is about 10 - 20 minutes but will vary depending on the mass mixed and the ambient temperature.
Mixing: Proportion out components according to the parts by weight (pbw) ratio into a non-reactive container (e.g. polyethylene, polypropylene, or metal de-rimmed can). Select a container about five times larger than the volume of material mixed to allow for expansion while de-airing under vacuum. Mix components very thoroughly, preferably with a metal spatula, scraping the sides and bottom of container to incorporate all material.
De-Air: Remove air bubbles entrapped while mixing by placing mixed material in a vacuum chamber. (Vacuum should be able to achieve 29 inHg.) Liquid level should rise and then fall with some bubbling. Break vacuum partially and reapply as necessary to avoid overflow. De-air material until bubbling is minimal. Do not leave material under vacuum longer than one minute as catalysts may be stripped from the system and effect curing.
Transfer and Application: If working time allows, pour mixed material into a clean container without further scraping the sides and bottom. (In case unmixed material is still present.) Discard the residual material left behind in the mix container. If working time does not allow transfer to a clean container, dispense material taking care to avoid further scraping material from the sides and bottom of the mix container. Apply mixed material to the work area immediately.
Containers: After using materials, blanket remaining components under nitrogen gas (N2) and securely reseal the containers. This will reduce the likelihood of contamination from atmospheric moisture and extend shelf life.
CURING PROCEDURES:
Most properties (approx 90%) will develop after 48 hours of room temperature cure. Full properties develop over a period of 5 to 7 days at ambient temperature. Cure may be accelerated with the application of heat. To heat cure the system, allow product to gel at room temperature for one hour. Then apply moderate heat 60-85 °C (140-185° F) for 1 to 3 hours.
Properties
- Flame Rating
- Component A
- Physical Properties
- Component B
| Value | Units | Test Method / Conditions | |
| Color | Amber | — | — |
| Density | 10.3 | lb/gal | — |
| Density | 1.23 | g/cc | — |
| Viscosity At 70°F (21°C) | 150-250 | cps | — |
| Mix Ratio By Weight | 15 | — | — |
| Gel Time At 300G | 10 - 20 | minutes | — |
| Fixture-Cure | 60-90 | minutes | — |
| Recommended Full-Cure (1) Standard, 77°F (25°C) | 5-7 | days | — |
| Recommended Full-Cure (2) Alternate, Gel R.T. Plus 140-185°F (60-85°C) | 1-3 | hours | — |
| Value | Units | Test Method / Conditions | |
| Hardness | 83 - 93 | Shore A | — |
| Tensile Strength, | 1500 | psi | — |
| Tensile Elongation | max.115 | — | — |
| 24 Hour Water Absorption | 0.15 | % | — |
| Dielectric Strength | 1150 | v/mil | (ASTM D149-97a Method A) |
| Dielectric Constant At 100K Hz | 6 | — | — |
| Volume Resistivity | 7.1E^13 | — | — |
| Thermal Conductivity (W/M°K) | 0.6 | min | — |
| Thermal Conductivity ((Btu-In)/(Hr X Ft2 X ºF)) | 3.5 | min | — |
| Flammability (0.250 Inches) | UL94 V-0 | — | — |
| Value | Units | Test Method / Conditions | |
| Color | Off-White | — | — |
| Density | 12.7 | lb/gal | — |
| Density | 1.52 | g/cc | — |
| Viscosity At 70°F (21°C) | 6000 - 8000 | cps | — |
| Mix Ratio By Weight | 100 | — | — |
| Gel Time At 300G | 10 - 20 | minutes | — |
| Fixture-Cure | 60-90 | minutes | — |
| Recommended Full-Cure (1) Standard, 77°F (25°C) | 5-7 | days | — |
| Recommended Full-Cure (2) Alternate, Gel R.T. Plus 140-185°F (60-85°C) | 1-3 | hours | — |
Regulatory & Compliance
- Certifications & Compliance
Storage & Handling
- Shelf Life
- 6 Months
- Storage
Store both Part A and Part B components between 65°F /18°C – 86°F/30°C in a clean, dry area. If stored below 68°F/ 20°C, allow the material to reach room temperature in the closed/sealed container prior to use. Both components should be blanketed with nitrogen after use to extend shelf-life and minimize moisture contamination during storage.