1966 Dodge Dart

I'm no expert on what to use where,...But have used two products called 'glaze' that are very different. The one part red stuff in tube is for 'pinholes and scratches'. In my opinion that is about all it is good for-if that. It takes a looong time to dry before sanding. I have tried to 'build' with it. Usually with poor results. It is easy to use cause it's one part. Just squeeze it out and spread it on.
The other is a 2 part product like Bondo. It will build a little, but it is very thin, runny compared to bondo. on a flat horizontal like hood, you could easily get an 1/8th inch with it, but I mostly keep it to a skim coat (less than 1/16)with a plastic spreader.Just want to spread a thin layer over the filler. It sands about the same as bondo, but gives a smoother, finer and I believe harder surface than bondo. Basically a step between Bondo and fill primer. Of course there are various brands of both types, so no doubt some work better or worse than other... Here's the one I used and liked.

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