Is there an adhesive that is chemically resistant to acetone?
This application discusses adhesive systems that provide excellent resistance to acetone and other harsh chemicals in demanding industrial environments. It also reviews key selection factors such as chemical compatibility, operating temperature, substrate adhesion and long-term durability to help ensure reliable performance.
The Application
Customer wants to build a special wafer carrier that has aluminum parts glued together. The carrier is eventually to be soaked in acetone.
Finding the Answers
- What temperature does the exposure to acetone take place?
- What is the duration of exposure and how many times does this exposure occur?
- Do you want low outgassing?
- What viscosity are you looking for?
The Solution
Making certain assumptions about the answers to the above questions, Venkat recommended EP41S-1.
EP41S-1 has outstanding chemical resistance. It was tested as a coating of about 0.020 inches thick on sand blasted steel. To optimize its chemical resistance, it was cured for 24 hours at room temperature followed by 2-3 hours at 200°F. The system was then immersed in a wide variety of chemicals including ethylene glycol, sodium hydroxide, toluene, gasoline, and more, for over 1 year. After 14 months, no failures were observed.
The operating temperature of EP41S-1 ranges from -60°F to +300°F. The viscosity of Part A is 10,000-15,000 and Part B is 250-400.
EP41S-1 also comes in a non-drip version, EP41S-1ND, and in a high temperature version, EP41S-1HT which is serviceable up to 400°F.
Summary of Products
| Product | Chemistry | Viscosity | Service Temperature Range |
|---|---|---|---|
| EP41S-1 | Two part epoxy | Low | -60°F to +300°F |
| EP41S-1ND | Two part epoxy | Non-drip | -60°F to +300°F |
| EP41S-1HT | Two part epoxy | Moderate | -60°F to +400°F |
| EP62-1 | Two part epoxy | Low | -60°F to +450°F |
| EP21ARHT | Two part epoxy | Moderate | -60°F to +400°F |
| EP21ARHTND | Two part epoxy | Non-drip | -60°F to +400°F |
| EP42HT-2 | Two part epoxy | Low | -60°F to +450°F |
Meet Our Tech Expert: Venkat Nandivada
Venkat Nandivada has been the Manager of Technical Sales at Master Bond Inc since 2010. He has a Masters degree in Chemical Engineering from Carnegie Mellon University. His hobbies include table tennis, cricket and soccer.
