I pulled this from the NAWCC site where this topic as discussed. I think it is much easier to use a glazing compound on a curved door than it is to put in sticks. to be accurate glazing is the glass,and the operation of installing the glass, glazing compound is the stuff you asked about. Here is the quoted text:
"Hi,
Someone mentioned whiting (calcium carbonate), which is commonly available from any/all hardware and paint stores for thickening paint or for sports fields.
I mix up whiting with pigment powder to get the color I want and then mix with shellac to a stiff consistency. It is easily reversible, can be colored as desired. If you are already working with shellac, you should have all the ingredients, except the whiting.
Personally, I don't like the oil-based putties but I'd use them before I ever used Rock Hard on an antique.
Craig
and also:
I think that shellac based putty is what the clock makers used originally.A sample of the old putty will dissolve in alcohol leaving the whitting and pigment.The clock makers did not have months to wait for linseed based putty to dry,and it would have softened up in the peddler's wagon in the summer heat,while shellac based putty dries in a day or two.
David
I haven't tried this but it makes sense, see if the glazing compound on your restoration dissolves in alcohol and let use know how this works.
Mike