FREQUENTRY ASKED QUESTIONS
1. Ordering Information
| Sales Information: |
Accounting Information: |
Technical Information: |
| Ken Iwasa |
Melissa Mazzei |
Dr. G. L. Deets |
Tel 732-238-2211 X12
Fax 732-238-2369 |
Tel 732-238-2211 X16
Fax 732-238-2369 |
Tel 413-730-3578
Fax 413-730-3420 |
| E-mail:infoist@istusa.com
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2. Compatible Materials of Construction
| The preferred materials of construction are stainless steel, polyethylene, or polypropylene. Carbon steel should be avoided, as iron contamination will cause viscosity stability problems in long term storage.
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3. Storage Conditions
| Short-term exposure to normal ambient temperature will not cause problems with resin. For long term storage the material should be stored at temperatures of 40°F or lower to reduce viscosity change, which is common with these resins.
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4. Usability of Resin
| As long as resin solution has viscosity and solids levels within specification the resin is usable.
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5. Cure Conditions
| See individual resin information for suggested initial cure conditions for various resins and prepregs. If a second coating is to be applied it should be applied before final full cure of coating. After final cure the coating is very resistant to solvent attack and intercoat adhesion is poor if another coating is attempted. If powder formation is observed during cure this is an indication that solvent has not been sufficiently removed before imidization. Powder formation is almost always caused by in adequate solvent removal and solution to problem is to extend low temperature portion of cure cycle.
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6. Handling Considerations
| Water contamination should be avoided. Thus the resin solution should be allowed to warm to room temperature before container is opened and resin is used. If the resin solution is exposed to air at low temperature water will condense on the resin solution surface and be rapidly dissolved in the solution. Water will cause hydrolysis, which lowers the molecular weight of the resin.
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