My understanding (and it seems intuitive to me) is that crazing will not come
out, as the cracks go too deep. This is to address fogging and fine scratches
usually caused by UV damage and minor scuffs.
Bruce Whitmore
1994 37/40+
(847) 404-5092 (mobile)
[email protected]
From: Harvey Barth via CnC-List <[email protected]>
To: [email protected]
Cc: Harvey Barth <[email protected]>
Sent: Friday, May 12, 2017 11:24 AM
Subject: Re: Stus-List Fogged, Scratched Plexiglass - Good home test, now to
try it on our companionway hatches...
Will this process work to remove the crazing and small cracks that appear on
older hatches?Harvey
Sent from my iPhone
On May 12, 2017, at 9:35 AM, Larry via CnC-List <[email protected]> wrote:
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{}#yiv6194105248 BruceYou are doing it correctly. I have worked with
“Plexiglass” since the early 70’s. However you only want to use the least grit
paper to get the scratches out, so as to remove the minimum amount of material.
I usually start with 1000 or 800 grit to determine if the scratches will come
out. I then use 1200, 1500, 2000, 2500, 3000, 4000, and 5000 grit before moving
on to polishing. Then you want to use a cloth that is safe for eyeglasses. I
have done this many times on motorcycle windscreens and aircraft windscreens. I
did it ones on my boat. Now I just take plexiglass polish three times a year to
it. Good luck From: CnC-List [mailto:[email protected]] On Behalf
Of Bruce Whitmore via CnC-List
Sent: Thursday, May 11, 2017 7:01 PM
To: C&C List
Cc: Bruce Whitmore
Subject: Stus-List Fogged, Scratched Plexiglass - Good home test, now to try it
on our companionway hatches... Hello all, Our 37/40+ has tinted plexiglass
sliding companionway hatches that look fogged and lightly scratched all over
from years of sun. After reading here and other places about potential ways of
curing the issue, I ran a test here at home. I have a Ryobi Corner Cat, and
grabbed a piece of scrap plexiglass. Starting with 360 wet/dry sandpaper, I
wet sanded the nice new piece of plexi until it looked like $#!+. Then
followed with 600, 1200 and 2000, then went to buffing compound, and finally to
McGuire's polish for headlights. Sure enough, the piece of plexiglass came
out really nice & clear. So, I think I'll try it on the sliding hatchboards
unless someone here cautions me otherwise. What say you wise folks? Bruce
Whitmore
(847) 404-5092 (mobile)
[email protected]
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_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
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All Contributions are greatly appreciated!
_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
https://www.paypal.me/stumurray
All Contributions are greatly appreciated!
