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View Full Version : 'Hard' Water Spots on Fiberglass


ShineTimeDetail
11-13-2012, 04:11 PM
I recently did a RV that had super hard water spots on it. A wool pad on Menzerna power gloss at 2500 RPM was hardly doing anything. I got a majority of them completely off but along the windows, doors and trim they are still really bad. Me getting in there by hand isn't going to work...Honestly I'm not willing to do it. I say I'm not willing to do it because I have already tried it and it takes a very long time and a lot of energy to do a very very small amount.

Is there something I can use to take it off? Someone was telling me to use water spot remover that is used for glass but it has acid in it! I just laughed and shook my head.

Thanks for any help! :xyxthumbs:
Custom Detail
11-14-2012, 11:38 AM
Water Spot remover is the chemical of choice here. after 20yrs in the Boat And RV appearance restoration business that is what we use!

You need to make a choice here as to work Smarter or Harder!
Vegas Transplant
11-14-2012, 11:48 AM
Hey bud, I'm waiting for the Optimum release of its foam block clay alternative.
In the meantime, I'm considering the Nanoskin Autoscrub Medium Foam Pad (http://www.autogeek.net/nanoskin-autoscrub-medium-grade.html) just for this purpose.


Don't forget there's a sale today http://www.autogeekonline.net/forum/discounts-specials/57417-through-midnight-tonight-free-shipping-w-no-minimum.html
ShineTimeDetail
11-14-2012, 12:12 PM
Water Spot remover is the chemical of choice here. after 20yrs in the Boat And RV appearance restoration business that is what we use!

You need to make a choice here as to work Smarter or Harder!

For glass?
Vegas Transplant
11-14-2012, 12:14 PM
Definitely not the windshield.
ShineTimeDetail
11-14-2012, 12:45 PM
Ok anyone wanna pm me a link?
Rsurfer
11-14-2012, 01:43 PM
Ok anyone wanna pm me a link?
Google MX7
ken tuep
11-14-2012, 02:08 PM
I used clr or my camper and it worked good. I havent used it on a car though.
ShineTimeDetail
11-14-2012, 02:23 PM
I used clr or my camper and it worked good. I havent used it on a car though.

Clr didn't do anything.
FUNX650
11-14-2012, 03:42 PM
Google MX7

-Since MX7's %, by weight, of HF acid is optional...

-Couldn't the OP also take under consideration/(advisement):
Meg's D140 Wheel Brightener...
Whose %, by weight, of HF acid is controlled at 10-15%...

Bob
Rsurfer
11-14-2012, 04:09 PM
-Since MX7's %, by weight, of HF acid is optional...

-Couldn't the OP also take under consideration/(advisement):
Meg's D140 Wheel Brightener...
Whose %, by weight, of HF acid is controlled at 10-15%...

Bob

Could be..call me maybe.
ShineTimeDetail
11-14-2012, 04:20 PM
Could be..call me maybe.

Are you singing a song?
vman
11-14-2012, 07:27 PM
In the future try spraying down the whole thing with ONR at QD dilution after rinsing it. I have extremely hard water and although there were water spots afterwards, they easily came right off when I was applying a spray wax with a microfiber towel. I have never had a car this water spot free until I have tried this.