whats the best way to remove old chalking from windows that face outside ?

Answer 1

There is only one way and that way is with a couple of sharp putty knifes and lots of patients

Answer 2

I'm not sure about the drill attachment, it might damage the window frame. The solvent might do the same to the frame (depending on the material).
I personally use a sharp box blade to score it and pull it off slowly while using a putty knife as a backer to "pry" it up and out.

Good Luck.

Answer 3

There is actually a tool you can buy that attches to a hand drill....it clears off all the old chalking without harming window panes. It is almost like a small router bit

Answer 4

For me it was a sharp, rigid putty knife. You'll be surprised how easily the glazing fails; it'll come off in large strips. The glass will be held in with glazing points; be careful not to push these too much when removing the old glazing because they can crack the glass.

Answer 5

I do not remember the name, but they do make a product that softens the caulk. But... you still have to dig it out with a putty knife, a screw driver etc. Try the home repair stores.

Answer 6

Go to HOme Depot or Lowes. They make a special tool just for that purpose.