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The dry vacuum-pressure application process:
Baskets of components are placed in an empty impregnation vessel to
be sealed. The dry vacuum is allowed to reach a minimum of 29 - 29.5"
Hg for 5 - 10 minutes. While still under vacuum, the resin storage tank
transfer valve is opened, allowing the resin to flow into the autoclave
until the parts are completely covered. Parts are left under wet vacuum
for 1 - 5 minutes. Then, the chamber is vented to atmospheric pressure.
Once the autoclave reaches atmospheric pressure, the storage tank is
placed under a vacuum. The transfer valve is opened to allow the resin
to be moved back to the storange tank. The basket of parts is then spun
or drained to remove excess resin.
Multi-purpose Chamber |
| Dry Vacuum |
Wet Vacuum Impregnation |
Resin Recovery (Centrifuge) |
| 1 - 2 Minutes |
1 - 2 Minutes |
1 - 2 Minutes |
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| Water Rinse |
Spray Drain |
Cure |
| 2 - 4 Minutes |
1 - 4 Minutes |
Curing Time: |
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Hot Water
10 Minutes
at 195° F |
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- Cycle time of 20 - 30 minutes.
- Maximum sealant penetration into porosity.
- Optimum sealing results possible for high-pressure requirements.
- Can be used with resin or sodium silicate impregnants.
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