[Public-List] Bulk Head Repairs

Wed Aug 5 14:00:29 PDT 2009

I bought this
http://www.dremel.com/en-us/Tools/Pages/CategoryProducts.aspx?catid=21
Dremil oscillating tool a while back for around $100.  It works great, much
easier to control then a Sawsall and will cut flush.  It also has a sanding
head.  Thought it was too low on power until I discovered the variable power
setting, duh.

Roger Kingsland, Managing Partner
Kingsland Scott Bauer Associates

KSBA 
________________________________

Architects/Planners/InteriorDesigners/ProjectManagers

3441 Butler Street
Pittsburgh, PA 15201
N 40° 27.8344'  W79° 57.9831'

412-252-1500 ext.101 
412-779-5101 cell 
412-252-1510 fax
r.kingsland at ksba.com
www.ksba.com

-----Original Message-----
From: public-list-bounces at lists.alberg30.org
[mailto:public-list-bounces at lists.alberg30.org] On Behalf Of Chris Martin
Sent: Wednesday, August 05, 2009 4:13 PM
To: Alberg 30 Public List -- open to all
Subject: Re: [Public-List] Bulk Head Repairs

Do whatever is easier. A sharp chisel makes a lot less dust, but can take
more time. A sawzall will do wonders, just keep it under control.

________________________________
From: "Rogers, Jim" <JRogers at scelectric.ca>
To: Alberg 30 Public List -- open to all <public-list at lists.alberg30.org>
Sent: Wednesday, August 5, 2009 3:54:14 PM
Subject: Re: [Public-List] Bulk Head Repairs

Do you use a grinder or a dry-wall bit to cut the existing tabbing? Would it
be easier to grind the tabbing from the hull? This should make it easier to
remove the old bulkhead.

Jim

-----Original Message-----
From: public-list-bounces at lists.alberg30.org
[mailto:public-list-bounces at lists.alberg30.org] On Behalf Of Michael Taylor
Sent: August 5, 2009 1:30 PM
To: public-list at lists.alberg30.org
Subject: [Public-List] Bulk Head Repairs

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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