How vacuum chamber sizing works
Mix gallons, foam headroom, and when NO_MATCH is honest.
Vacuum degassing chamber sizing
Vacuum degassing chamber size from mix gallons
Enter resin mix gallons and foam headroom. Get the smallest 3 or 5 gal chamber class — or NO_MATCH when the batch exceeds this ladder.
Vacuum degassing chamber sizing
Result
Required chamber gal ≈ mix_gal × foam factor. Factor = 2 (typical epoxy) or 3 (silicone/heavy foam). Classes: 3 · 5 gal. Above 5 gal required → NO_MATCH.
From measurement to decision
Open the full calculator
Same tool with room for examples.
3 gal vs 5 gal classes
When each VEVOR chamber class fits — and when none do.
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