MG Chemicals 8800 - Black Flexible Urethane
- Chemical Family
- Polyurethanes (PU)
Black Flexible Urethane 8800 is a black, 2-part, flexible polyurethane resin. It has a low mixed viscosity and maintains excellent flexibility at low temperatures. In addition, this flexible urethane adheres strongly to a wide variety of substrates, including metals, composites, glass, ceramics, and many plastics. It is a cost-effective flexible potting option that provides exceptional physical protection and creates minimum stress on circuit boards and surface-mounted devices. It offers superior moisture resistance and is an ideal choice for harsh environments, especially saltwater exposure and marine applications.
Product families
Applications
- Consumer Goods — Appliances & Electronics
- Adhesives & Sealants
- Potting Compounds
Product Families
- Encapsulants
Other characteristics
- Product Type
2K (2 component) Sealant, Encapsulant, Potting Compound; 2K (2 component) Sealant; Encapsulant; Potting Compound
- Compatible Substrates & Surfaces
- Ceramic, Glass, Metal, Plastics, Wood
- Mixing
Mixing >500 g at a time decreases working life and can lead to a flash cure. Limit the size of hand-mixed batches. For large production volumes, contact MG Chemicals Technical Support for assistance.
- Markets
- Consumer Goods
- Electrical & Electronics
- Shelf LIfe
- 1.5 Years
- Technology
- Ready-to-Use Products
- Packaging Type
- Bottles
- Cans
- Pails
- Water Absorption
Approximate sample size: 12.8 mm width, 12.5 mm thickness, and 4.8 g. Cured 1 hour @ 65 ˚C.
- Cure
Allow to cure at room temperature for 24 hours, or cure in an oven at one of these time/temperature options:. Moisture contamination with polyurethanes can create large bubbles on the surface and a lumpy appearance. For consistent curing results, ensure that the resin (part A) is dry before use and the mixture is kept dry during cure. If moisture contamination of part A is suspected, follow the steps below:
- Benefits and Features
- 2:1 mix ratio
- Quick working time
- 24 hour cure at room temperature
- Constant service temperature of -50 to 120 °C
- Excellent dielectric properties
- Ideal underwater potting compound
- Chemical Inventories
- AICS (Australia)
- DSL (Canada)
- ENCS (Japan)
- IECSC (China)
- KECI (Korea)
- NZIoC (New Zealand)
- PICCS (Phillipines)
- TSCA (USA)
- Certifications and Compliance
- RoHS Compliant
- Ready to Use Product Features
- Excellent Dielectric Properties
- Excellent Moisture Resistance
- Excellent Substrate Adhesion
- Flexible
- Low Temperature Flexibility
- Compatible Substrates and Surfaces
- Ceramic
- Glass
- Metal
- Plastics
- Wood
Technical data
Table 1 of 3
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Mix Ratio | 2:1 | Volume |
| Mix Ratio | 7:4 | Weight |
| Working Time * | 10 | minute |
Table 2 of 3
13 rows| Characteristic | Value | Unit |
|---|---|---|
| Breakdown Voltage | 46200 | V |
| CTE (After Tg) | 221 | ppm/˚C |
| CTE (Prior Tg) | 86 | ppm/˚C |
| Dielectric Strength | 370 | V/mil |
| Glass Transition Temperature (Tg) | 11 | °C |
| Hardness A | 74 | — |
| Intermittent Temperature | 130 | ˚C |
| Lap Shear (Aluminum) | 3.1 | N/mm2 |
| Lap Shear (Stainless Steel) | 4.4 | N/mm2 |
| Resistivity | 8.4 x 10¹² | Ω·cm |
| Service Temperature Range | -50 to120 | ˚C |
| Tensile Strength | 4.5 | N/mm2 |
Table 3 of 3
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Mixed Density | 1.1 | g/mL |
| Viscosity (at 25˚C) ⁽ᵃ⁾ | 300 | cP |
| Viscosity (at 25˚C) ⁽ᵇ⁾ | 640 | cP |
