Maximum repair dimensions for use of microballoons is
- 10mm.
- 20mm.
- 30mm.
Explanation
Microballoon filler is restricted to small, lightly loaded repairs; the accepted maximum repair dimension is around 10 mm, beyond which a proper structural plug or core insert is required. Larger 20-30 mm holes exceed the strength capability of a filled repair, so 10 mm is the limit.
Diverdeep asking:
why??
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