This is my first post here, though I have been lurking for a couple weeks now. Thank you all for the great information, it will come in handy when I strike out on my own next month…
Now, I have been reading a lot about hard water removal and the different chemicals being used. Have any of you used CLR? We have hard water here and it works great at freeing up shower heads and the like. Thoughts?
Also, could anyone expound on the method of using a black light to determine tin side?
Welcome Dave. When using a black light you’ll need to make sure you limit the amount of light on the window. If you have to check some glass on a sunny day try using an umbrella to shade the window (great tip I was given by Mike Draper). The reflection from the black light will have a grayish hue when you are on the tin side.
Went and picked up some Safe Restore today from a local shop. Tried it out on some REALLY bad harwdwater stains and corrosion. Wiped on, let dwell, rinsed off - then washed window like normal. BEAUTIFUL!!! Good stuff. I also picked up some Winsol CC 550 just in case, but didn’t need it. I sampled a small pane, but the lady didn’t like my price - so now she has one beautiful pane to look at amongst all of the nasty ones. I should have taken pics, if we get the job I will post some photos.
to eat or wear away gradually as if by gnawing, esp. by chemical action.
[B]2. to impair; deteriorate[/B]
I would consider hard water buildup on glass to [B]impair[/B] the life, clarity, and usefulness of such glass. And over time, hard water can lead to etching which would in turn [B]deteriorate[/B] the surface of said glass.
What type of product would be needed for removing a silicate? Does CLR induce the correct reaction for silicates? What does? Wouldn’t anything that can react with silicate deposit also react with glass?
If there is some mild silicate deposits, ive used saferestore and some steel with a lot of success. Now if you have some heavy silicate deposits, the only thing that will touch that is CC550. If you dont have a black light, test a area on the corner of the pane with a q-tip.
Hey Tony, that’s new for me … so Safe Restore will affect glass if applied on the tin side ?? No wonder why I had a cloudy spot on a window I cleaned the other day, no problem because 90% of the windows in that house are gonna have to be replaced, so owner was " don’t even worry".
If I go back in time even more I can remember a couple of spots on windows where SR was applied, wasn’t as bas as last time, looked like run off kinda stains, no color, pretty much blended in with the glass, but if you looked closely you’ll notice.
I was thinking in ordering some dehazer (sp?) don’t know if that is the product, I’ve seen that somewhere, it was recommended to “fix” stuff gone wrong with CC550.
The Safe Restore may pose no problem on the tin side but it is an acid and if allowed to dry on the surface in direct sunlight you could have issues. I was referring to the CC-550. It can cook the tin side pretty quickly.