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Old 19th May 2013, 12:23 AM
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Bigcat Bigcat is offline
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Default Top tip for getting rid of calcium deposits off glass

Hi guys

I've had terrible calcium deposits on my windows ever since I bought my car 5 years ago. I've tried everything to get it off:

Vinegar, CLR, oven cleaner, cut & polish, bathroom cleaner etc etc.

After trawling the internet for a solution i found this stuff:

It's the only thing I've found that works. Here's how i finally shifted that muck:

1. You'll need a bottle of polish, lots of paper towel, a bottle of windex and some masking tape. Get your drill and fit a small sheepskin buffing pad from Repco etc. Don't even think about trying to buff it by hand, unless you've got a spare week.

2. Keep your doors closed. Mask off your windows to prevent too much polish getting on your paint and rubber strips.

3. Set your drill to run at a fairly low speed or you'll be splattering you and your car with purpleness.

4. Either run some lines of polish in an S shape over your window or apply direct to the pad. Blip the throttle on your drill to spread the polish around the window without splattering.

5. Buff the window for about 2 minutes in a slow moving fashion without pushing too hard. Don't rush or the calcium won't come off.

6. Spray the window with windex and use the paper towel to clean off the excess polish. Don't try and buff out the excess with a cloth or you'll be there all day spreading it around as it'll be like a thick greasy film.

7. Redo steps 4 to 6 if your first pass didn't get it all off. My windows took 3 attempts! This method of buff/clean/buff/clean seemed to be more effective that just lathering it on without the clean in between, I think this is because the polish has diminishing abrasives so buffing too long in one pass won't be as effective.

8. When you're done remove masking tape and finish cleaning your window surrounds with windex. The polish is quite greasy and so you'll need to keep using clean paper towels to prevent spreading polish over and over again.

9. If you get it on your paint don't worry. Just spray with windex and wipe it off GENTLY. It won't leave a mark

10. When you've done all your windows I suggest spraying your car with CT18 truck cleaner and giving it a good wash as there'll be heaps of little splatters everywhere.

11. This stuff also works great on headlight cataracts if you suffer from those.

Happy buffing!

By the way, I am in no way connected to California Customs. Just some guy who's chuffed his windows don't look like s#$t any more

Last edited by Bigcat; 19th May 2013 at 01:04 AM.
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Old 16th July 2013, 07:40 AM
vanNek vanNek is offline
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There is also a product around called magickleen it works awesomely!
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Old 16th July 2013, 08:03 AM
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Ratbag Ratbag is online now
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^ & ^^

Thanks, fellas.

My car windows are all fine ... BUT I have a house full of windows (and shower screens) that are all pretty daggy.
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Old 30th July 2013, 03:48 PM
PigSti PigSti is offline
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Yes, seen a friends glass permanently etched by calcium in tap water!
I found that Phosphoric acid instantly dissolved away all calcium marks on my glass. I bought it by the litre at the hardware store. I used it to also descale my kettle and shower screens at home, it was instant and reasonably safe.
RainX is a good solution to preventing scale marks on any glass, it lasts for years so I have found.
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Old 30th July 2013, 05:48 PM
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Thanks BC; good to know
MY'03 Foz AT XS with centre lock-up
MY'10 Triton AT GLX-R 2.5 DiD
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Old 2nd August 2013, 09:23 AM
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I'll try this next time! I found coke works as well
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Old 27th March 2015, 06:03 AM
clearwater99 clearwater99 is offline
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Originally Posted by vanNek View Post
There is also a product around called magickleen it works awesomely!
$18 dollars just sent to that company. .. hope ur right mate .. I live in upper caboolture .. and man .. the glass in our bathrooms can't be cleaned with a high pressure cleaner.. gumption .. blah blah blah ..

gota love the net .. lets see if this stuff works
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Old 27th March 2015, 10:12 AM
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My wife spend a ****load on Enjo products.
But for any glass, the Marble Paste and bathroom glove is a 100% winner.
You need very little paste and DO NOT use it on painted surfaces. Its literally marble.
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Old 27th September 2015, 09:38 AM
Mossy Mossy is offline
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Hey guy! This is my first post and I realise this is an old thread but I just wanted to let you's know this easy tip for perfect automotive glass every time. I run my own car detailing business and this is what we use. The product is call "Ali King" it's an aluminium cleaner and can be bought from any commercial cleaning supplies shop. Dilute it 50/50 with water in a heavy duty spray bottle. Wet the car down and spray on liberly one window at a time. Rub it around by hand with a glove on and pressure clean off, or even hose off. That's it! In some cases you may need to do it twice for really bad build up but not often. Do this to all external windows keeping the car wet and hosing residue off regularly. I would also recommend using a mask as it's pretty potent stuff. When the car is dry give the Windows a coat of ordinary car wax to help prevent build up again. THIS WILL NOT HARM YOUR PAINT.
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