Glass cleaning techniques

[Tofigh]

Hi Everyone

I have very large empty tank that has been sitting for a while and I can see there is some resedue dried on the glass. I can't get ride of it with normal cleaning

Does anybody know how I can clean the glass without scratching it?

Thanks

T

[Ira]

If the glass has been etched by whatever it was there isn't anything you can do, hopefully it's on the inside it will be less visible when the tank is full.

Otherwise, try vinegar, might dissolve it.

[jolliolli]

try isopropyl alcohol, its good at removing gum/residue on glass. Have you tried a glass scraper as well?

[suphew]

What do you include when you say "normal cleaning"?? I always use a glass scraper, same as painters use to remove paint from glass, that should remove your residue

[Barrie]

What do you include when you say "normal cleaning"?? I always use a glass scraper, same as painters use to remove paint from glass, that should remove your residue

I love that

I would turn over about $10000 per year on people that use those painters scrapers and with double glazing, it should improve to $30ooo per year.

Thank you.

Painters scrappers are called that and they should be called painters scratchers

Any painter worth his salt will use the stiff back razors at a last resort but never the hard stiff blades as they do and will scratch the glass

NEVER USE PAINTERS SCARPPERS

If the "residue" is whitish then it will probably be calcium/lime residue and will be etched into the surface of the glass. There is an acid that will reduce the effect but the surface will be damaged.

[Ira]

Ice scrapers would probably work well. But...You don't find many of them around here. They have copper blades which don't scratch glass.

[Aaron-Betta]

Maybe sandpaper or a scotch-brite would take it off, then I can send you to Barrie

On a serious note, I can supply some a 50/50 mix of IPA and "glaze-away" if you want to give that a try. If it can move printing ink, it can move anything. Also the IPA evaporates any residues etc.

[suphew]

I love that

I would turn over about $10000 per year on people that use those painters scrapers and with double glazing, it should improve to $30ooo per year.

Thank you.

Painters scrappers are called that and they should be called painters scratchers

Any painter worth his salt will use the stiff back razors at a last resort but never the hard stiff blades as they do and will scratch the glass

NEVER USE PAINTERS SCARPPERS

If the "residue" is whitish then it will probably be calcium/lime residue and will be etched into the surface of the glass. There is an acid that will reduce the effect but the surface will be damaged.

Interesting, I use scrappers around one a month on my marine tank, there is no better way to remove Coraline algae that I know of. Have also cleaned a lot of paint off windows and never managed to scratch the glass. Are you sure it's not linbide scrappers? I've scratched and broken plenty of windows with those

[Barrie]

Ive been a glass merchant for 40 years

Insurance companies recomend me to fix these problems

In reading what I wrote, it looks insulting and I honestly didnt mean it that way... Im sorry for that. :oops:

THE ONLY BLADES TO USE ON GLASS ARE THE STIFF BACK RAZORS

[spoon]

you can get products that are a fine cut and polish for glass they work great

[diver21]

what is a stiff back razor? i tried googling it and got nothing...

[TM]

[Barrie]

thanks TM

[TM]

I onl;y use these once when working with glass then throw them. Also good at getting every last bit of silcone off to.