[pianotech] More agraffes...kind'a

[Greg Newell]

You could coat the sides and bottom with Vaseline. Paint shouldn't stick to
that.

Greg 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Jim Ialeggio
Sent: Monday, August 20, 2012 4:03 PM
To: pianotech at ptg.org
Subject: [pianotech] More agraffes...kind'a

In the past, when refinishing a plate, I've had trouble with finish build-up
in the agraffe couterbore bottom and sides. The buildup then was pulled
along as the agraffe was tightened, sometime bringing surface finish with
it, restulting in chips and other nasties.

I've tried placing finish washers in the counterbore, held in by the weight
of a screw, but I'm not happy with this, as it bonds the finish washer to
the counterbore sides, creating chipping problems of its own, though less
than no finish washer.

Ideally, I'd cut a small bevel on the counterbore sides, and then not worry
about masking the countebores, but in playing with this, I don't have a
countersink remotely shallow enough to do the trick in such a shallow
counterbore.

Any thoughts on other ways to approach this easily?

Jim Ialeggio

-- 
Jim Ialeggio	
jim at grandpianosolutions.com
978 425-9026
Shirley Center, MA