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Re: Thanx Dean
By:Doug
Date: 8/21/2000, 3:17 pm
In Response To: Re: sanding fill coats (Dean Trexel)

Thanks, I appreciated the info and especially the 'don't sweat it' part. And I agree with you on the larger piece of glass

: Doug,

: Start sanding on one of the places where you need to feather, like the
: overlap of the deck cloth over the side of the hull, or (if your Coho is
: like my Tern) on the overlap at the center of the deck. Avoid the shear
: seam and start feathering the edge of the cloth down to the hull side
: panel. You will see the fiberglass cloth show up plain as day. It will
: look like a white cross-hatching on the off-white epoxy. The big tip then
: is: when you see this in places other than where you need to feather, stop
: sanding there and move on. You will inevitably start sanding into the
: cloth somewhere you don't want to, but don't get all torn up about it. If
: you don't linger in that area with the sander, you'll still have some
: strength there, and varnish will wet the area out and make the exposed
: weave transparent again.

: You will find out how much you need to sand as you go. The sanded surface
: will be a flat off-white color, sanding dust will fill in the low spots,
: and you will think you've done a pretty good job. But give the boat a wipe
: with a damp cloth, and you'll see some shiny spots that you've missed, and
: you'll need to sand down further. Eventually both your arms will have
: fallen off, the whole boat will be dull-looking, and you'll be done. It's
: a great feeling to apply the varnish and see the wood shine through again.

: If your Coho is like my Tern and has 2 pieces of cloth on the outside of the
: deck that overlap in the center, I have some advice: I didn't sand very
: far into the overlap because I didn't want to weaken the cloth. As a
: result, I have bit of a bump there. I talked with Pygmy after the fact,
: and they recommend just sanding the whole overlap right off. You now have
: a weak spot, because the cloth is essentially butt-jointed with no
: overlap, but it is in an area that's reinforced with the cockpit coaming,
: so strength probably isn't much of an issue. I understand that this makes
: better use of the cloth, and makes the kit cheaper, but next time I would
: shell out the extra cash to use a single piece with a bit more scrap.

: Dean

Messages In This Thread

sanding fill coats
Doug -- 8/19/2000, 1:59 pm
Re: sanding fill coats
Dean Trexel -- 8/19/2000, 8:15 pm
Re: Amount of cloth Pygmy provides
TomF -- 8/22/2000, 11:46 am
Re: CLC skimps too
todd -- 8/22/2000, 9:00 pm
Re: Thanx Dean
Doug -- 8/21/2000, 3:17 pm
Re: sanding fill coats
Lance Alldrin -- 8/19/2000, 4:35 pm