I tried the DAP 33 at first and liked it too the main reason I switched for a couple reasons.

1) When restoring old windows I would come across some that were redone only a decade or two ago with DAP. The DAP was chalky and crumbling. I didn’t like its lack of flexibility after such a short period.

2) Several other window restoration companies I know where using Sarco or similar products and they didn’t like DAP. I figured if it’s what the pros are doing then I should look into it.

3) Sarco’s putty is the closest in formulation to what they used back in the day and that putty lasted 70 years in some cases. I want those results.

4) We do use the larger glazier’s points occasionally if the rabbet is big enough and, like you said, if the glass is a bit too small for the frame.

1. I use Dap 33. I just started out using this because this is what the home centers carry. I’ve never used anything else and maybe what Scott recommends is better. It sounds like Dap 33 requires a little less set up time than the Sarco putty which is a good thing from my point of view but beyond that I don’t know why one product versus the other.

2. I use Dap glazing compound in a tube for the bedding. I use this instead of Dap 33 because it goes down faster and is easier to squash flat when you install the glass. I don’t think it works very well for the window glazing itself because it sags and in general just looks kind of ugly in time.

3. I use a two handed technique with the putty knife. I use one hand to hold the knife steady against the frame and a second to drag the putty knife along.

4. I use the points with the bent up edge. Sometimes they are just barely covered by the glazing compound, but at least on occasion somebody as cut the old glass a little on the small side and if they were any smaller I’d need to get new glass.

5. I’ve been making the glazing compound bevel end as close as possible to the edge of the inside rabbet. I think I’m going to go with Scott on this. I’m going to start making the bevel a little more narrow.

6. I clean up the oil from the glazing compound on the window with whiting. This allows me to make the window mostly clean while I wait for the glazing compound to set up so the window can be painted and cleaned. Maybe the Sarco Putty is less messy to install than the Dap 33 and doesn’t leave the window with oily smears the way Dap 33 does?

We’re building our own steam cabinet now and looking forward to trying it out because stubborn putty is the easiest way to break windows.