PX-103 is a solvent-free, hot-curing 2-part IPN adhesive based on epoxy resins with high media and temperature resistance. It is a toughened (flexibilized) adhesive and does not contain fillers.
PX-103 is suitable for high-temperature resistant structural bonding of metals, glass, and ceramics. It is especially intended for stainless steel and aluminium.
2 separated components A + B, each in polyethylene containers. Available package sizes: 30, 60, 120, 240, 500 and 1000 g.
| Property | Method | Conditions | Value |
|---|---|---|---|
| Viscosity at RT | 23 °C | medium to high | |
| Pot Life at RT | 23 °C | 5 h | |
| Reaction Enthalpy | DSC | 10 K/min | 275 J/g |
| Temperature in Reaction Maximum | DSC | 10 K/min | 131 °C |
| Colour (cured) | light amber / translucent | ||
| Decomposition Temperature under N2 | TGA | 10 K/min | 384 °C |
| Glass Transition Temperature | DSC | 10 K/min | 104 °C |
| Thermal Expansion | DMA-TMA | 2 K/min, 30–50 °C | 44 · 10−6 K−1 |
| 2 K/min, 50–70 °C | 62 · 10−6 K−1 | ||
| 2 K/min, 170–200 °C | 161 · 10−6 K−1 |
| Substrate | Pretreatment | Test Temperature [°C] | ||
|---|---|---|---|---|
| 23 | 160 | 220 | ||
| Aluminium AlCuMg1 | DIN 53281 | 24.6 | 8.8 | 3.3 |
| Stainless Steel 1.4301 | etched | 23.7 | 9.5 | 2.9 |
| Steel ST 1403 | none (as received with oil on surface) | 18.7 | 1.5 | |
A : B = 1 : 1 (weight)
Prepare 1 part of component B and mix carefully with 1 part of component A. In order to decrease viscosity the mixture can be heated to 60 °C at the cost of shortened pot life. After mixing the adhesive can be applied to the prepared bonding surface and then must be cured at elevated temperatures
Note: On stainless steel higher adhesive strength can be achieved if a mixing ratio of A : B = 6 : 5 is used instead of 1 : 1 (RT: 23.6 MPa; 160 °C: 10.1 MPa; 220 °C: 3.8 MPa).
Curing should be conducted in two temperature steps at 80 and 130 °C. The duration of each step mainly depends on how quick the neccessary temperature can be reached in the adhesive layer. Small and thin substrates with good thermal conductivity can be cured quickly. Larger structures and substrates with low thermal conductivity should be cured for longer periods.
As a starting point a curing schedule of 1 h at 80 °C + 2 h at 130 °C should be tested. Suitable tests under real-life conditions should be conducted by the user.
Spare amounts of the adhesive should be cured and then disposed of according to local regulations.
PX-103 (A+B) should be stored in its original container in a refrigerator at 8–12°C (do not freeze). Avoid direct sunlight. Shelf life is 6 months. Storage date is given on each container.
When using the adhesive wear protective glasses and gloves. Refer to further instructions in the Material Safety Data Sheet.
All recommendations for use of our products, whether given by us in writing, verbally, or to be implied from the results of tests carried out by us, are based on the current state of our knowledge. Notwithstanding any such recommendations the Buyer shall remain responsible for satisfying himself that the products as supplied by us are suitable for his intended process or purpose. Since we cannot control the application, use or processing of the products, we cannot accept responsibility therefor. The Buyer shall ensure that the intended use of the products will not infringe any third party's intellectual property rights. We warrant that our products are free from defects in accordance with and subject to our general conditions of supply.
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