Fiberglass Grinding in Small Areas

[Paul Lefebvre]

Does anyone have any suggestions for grinding fiberglass in tight quarters.
I am doing some grinding in the bottom aft end of the bilge, and it is too
narrow to use my 4′ grinder. I see 3M makes a product called Roloc with 2″ –
24 grit disks that I could use on my die grinder. Has anyone used these or
have a better idea ( Tor – you must be the expert on fiberglass grinding by
now). Will some type of wire wheel work.

Thanks,

Paul

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[RichCarter]

Paul
I’m not sure how tight an area you have nor how large. I’ve used a rotary rasp before to trim around holes. They come in different shapes and sizes.

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=35453

Cutting tools don’t hold up very well when used on fiberglass, so if you have a larger area, you may be better off with a sanding tool.
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=96785
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=95469
BTW: The starbrite attachment on either of the above is great for polishing stainless.

Rich Carter

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[sumocean]

Paul

While we’re in the Harbor Freight catalog I’ve used this:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94029 it’s
a small dust collector that I can keep in the cockpit while working down
below. It doesn’t catch it all when the grinder gets going, but it gets
most of it. I think it will be a big help when refinishing the woodwork in
the cabin also. I use the collection ends that I use on my large collector
in the shop at home. Big funnels or wide flat collectors depending on what
I need to catch.

Linus

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[Paul Lefebvre]

Rich and Linus

Thanks for the ideas. I ended up locating some of those small discs to use
on a die grider, and they do the job.

As far as dust goes, I am quickly finding that sealing off the area 100 %
with plastic and duct tape may be the only way to stop getting it
everywhere. It is amazing how fast the dust ends up throughout the boat (
Rich – as I think you mentioed this when you had your V-berth re-inforced.)

Paul

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