In my experience, they really don't stick together. They stick enough to print, but if you exert pressure on the part they will delaminate.
It works great to print the support in Petg, and the part in pla (or the reverse)
Nothing to add. Those two are great support materials for each other because they don't stick well
PETG and PLA will not hold together.
Infact. PLA makes great support material for PETG and vice versa because of how easy the support removal process is.
If you have to mix it use mechanical interlocking parts. Like a PLA cavity that is filled with PETG. The PLA & PETG won't connect/bond but due to the mechanical design, it will still hold together.
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