Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Key Features
- Fast room temperature cure
- Non corrosive
- Low linear shrinkage
- Self leveling
Applications & Uses
- Applications
- Application Area
- Application Method
- Cure Method
- Application
Applications include shallow potting of electrical connectors in automotive
Use and Cure Information
- This product is a ready for use 1 Part system. If supplied in cartridges it can be applied using either manual or pneumatic dispensing guns. It can also be applied from bulk containers using conventional drum dispensing equipment.
- All surfaces to which the sealant is to be applied should be clean, dry and free from grease, dirt, and loose material. Priming of surfaces is not normally required. If using as an adhesive, it should be applied to one clean surface and the other clean surface brought into contact with it within the tack free time stated opposite. For optimum bond strength, the thickness of the sealant joint should be a minimum of 1 mm.
- The sealant will cure upon exposure to atmospheric moisture, ideally between 20 to 30 ºC and 40% to 70% Relative Humidity. Time taken for cure will depend on the thickness of the joint, humidity and temperature. Joints should be left undisturbed for at least 24 hours, but preferably longer to effect sufficient depth of cure. Full cure requires 7 days.
- “For pneumatic dispensing of 310 ml cartridges, the recommended pressure is 2.25 to 3.45 bar (40 to 50 psi). Dispensing pressure above the recommended limits may lead to gas bypassing the piston, causing spluttering at the nozzle and poor bead quality”
Properties
- Physical Form
- Electrical Properties
- Adhesion Properties
- Cured Properties
- Uncured Properties
- Note
Cured properties are tested after 7 days at 23 (+/-2)°C and 50(+/-5%) humidity
- Uncured Product Property
Appearance Viscous liquid Cure Profile 23+/-2°C and 50+/-5% humidity
Cure Type Acetone Rheology Flowable Self Bonding Yes
| Value | Units | Test Method / Conditions | |
| Dielectric Constant | 2.88 | — | ASTM D-150 |
| Dielectric Strength | 23.5 | kV/mm | ASTM D-149 |
| Dissipation Factor | 0.005 | — | ASTM D-150 |
| Volume Resistivity | 5.4 x 10¹⁵ | Ω.cm | ASTM D-257 |
| Value | Units | Test Method / Conditions | |
| Lap Shear Aluminium | 5.9 | kg/cm² | ASTM D1002 |
| Lap Shear Copper | 6.5 | kg/cm² | ASTM D1002 |
| Lap Shear Stainless Steel | 3.5 | kg/cm² | ASTM D1002 |
| Value | Units | Test Method / Conditions | |
| 100% Modulus | 0.5 | MPa | — |
| Density | 1.07 | g/cm³ | BS ISO 2781 |
| Elongation (at Break) | 200.0 | % | ISO 37 |
| Hardness Shore A | 27.0 | — | ASTM D 2240-95 |
| Linear Coefficient of Thermal Expansion | 302.0 | ppm/°C | — |
| Working Temperature Range | -50 - 220 | °C | — |
| Tear Resistance | 3.0 | N/mm | BS ISO 34-1 |
| Tensile Strength | 0.85 | N/mm² | ISO 37 |
| Thermal Conductivity | 0.2 | W/mK | — |
| Volume Coefficient of Thermal Expansion | 906.0 | ppm/°C | — |
| Youngs Modulus | 0.4 | N/mm² | — |
| Value | Units | Test Method / Conditions | |
| Cure Through to 3 mm Depth | 24.0 | Hours | — |
| Tack Free Time / Skin Formation (at 23°C) | 10.0 | Minutes | — |
| Viscosity (Mixed) | 20000.0 | cP | Brookfield |
Packaging & Availability
- Packaging Type
- Packaging
- CHT Adhesives are available in a variety of packaging including cartridges and bulk containers.
- Users are advised to carry out their own tests on clean, degreased substrates to ensure satisfactory adhesion is achieved.
- Stress cracking can appear on some grades of polycarbonate and poly(methyl methacrylate). Users are advised to carry out initial testing to ensure product compatibility.
Storage & Handling
- Shelf Life
- 12 Months
- Storage Conditions
Maximum storage temperature is 40 °C / 104 °F.