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Try not, Do or Do not
Join Date: Apr 2004
Location: Fallbrook, Ca. 92028
Posts: 14,224
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The problem I have with Three Bond 1200 products as a case sealant is that they are Silicone based sealants and as such produce a flexible bead on the inside of the case.
If/when that bead encounters engine vibration and/or fluid dynamics of whirling engine oil the bead breaks loose and ends up as worms in the oil supply blocking oil passages like oil squirters, cam pray bar and bearing supply holes.
The 1100 products are synthetic rubber based sealants that have less of a propensity for beading and the beads seem the resist break away better.
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