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MichaelP and Dave,

Not to worry!

I had remembered the thread where the Zpoxy over Shellac was a no-no and did some Archive searching. If I decide to do it as an experiment, I would sand back down to wood, use just the 60/40 mix. I am going to try this on some cheap Sitka tops I got for experimenting things with and on.

Thanks guys,

Mike

[QUOTE=MichaelP] I know we have hashed this over time and time again. But shellac has not problem adhering to epoxy. However epoxy does have probems adhering to shellac. Shellac seams to adhear to darn near anything but epoxy is picky[/QUOTE]

Michael,
do you think lightly sanding the shellac with say 400 grit paper would help the epoxy adhere to the shellac?

It may but I just don't think I would depend on it with out several test first. I have sanded shellac off and then filled with zpoxy and did not have any failures.

Cindy Burton tells me she uses a very common brand of 5 minute epoxy (I forget the brand name) for pore filling after sealing with shellac, and gets excellent results with no adhesion problems. She said many epoxies won't adhere to shellac, but some will.

After the 5 min epoxy pore fill (which, by her method, leaves extremely little epoxy on the surface), she goes on to FP the instrument.

_________________
Todd Rose
Ithaca, NY

https://www.dreamingrosesecobnb.com/todds-art-music

https://www.facebook.com/ToddRoseGuitars/

Todd, not to dispute Cindy's experience at all, I have experimented with several 5 min epoxies and have yet to find one that does not yellow over a relative short period of time. I have a close friend that runs a fiberglass tank shop here in town and is an epoxy wizkid. according to him the reason quick cure epoxies yellow quickly is the heat generated in the cure. i am sure if Cindy is removing all but what is in the pores then she will have no or little issues. But I wanted every one to know that if you leave a film of a quick cure on the surface there is a very good chance it will yellow on you.

What "type" of Z-poxy are you using?
Art