[Public-List] Bulk Head Repairs

[Michael Taylor]

Jim,

The initial bond between the tabbing and hull is a mechanical one only so preparation is important to minimise the chances of compromising it.  Make sure there is no wax on the hull - use a dewaxing solvent.  Do this on the spots where you will overlay the tabbing. - do this before you grinding away the surface so you dont grind any wax or oils deeper into the surface.  After cleaning up use acetone on the hull to soften the surface  a little.  It can help activate a 'chemical bond'. Roughen up the bulkhead a little to get a good bond.  I have found this to work well.

On the other hand, you may consider epoxy for your repair as the bond is stronger than polysester resin.  I don't think cure time is an issue in this type of repair as all the layers you require in the tabbing can be put on in one.  Also, you don't need much expoxy for this type of repair so price is less of an issue.  Epoxy is generally twice the price of polyester resin.

cheerio

Mick
#231




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