Q: The question I have is do they wet in wave solder, and if they do, why does it matter what happens to them in reflow? A: Yes, but somebody here don't agree with me that the glued part need help from wave to get the good wetting.
They are wrong. The only good reason you should be gluing parts on is because you want to solder them with the wave or if you are doing double-sided reflow and you have heavy parts that would fall off on the second pass. In your case you would have to hand solder your through-hole to use that process.
There are too many complications with getting glue on pads, glue mixed with paste, parts placed too high because of dot profile, etc., to count on getting good reflow on parts held on with chipbonder AND solder paste.
Q: Conversely, if they don't wet in wave, reflow isn't your biggest problem. A: Yes you're correct. But somebody here want this non- wetting issue settle at SMT.
See above. You gotta tell us this stuff at the beginning. Everyone wanted to know why you were doing things the way you were from the outset. Now we know.
Q: Just to cover my bases, if you're masking those parts with a fixture for wave and THAT's why you need good reflowed joints, why would you put glue on them? A: Some of the component is near to the THP and that'why i've got to glued the component.
Ahhh, so they are not maskded by your fixture. Still, they need no paste and in fact it's depending on the paste that's causing your problems, not non-wetting in reflow.
Btw, to save time of masking & fixture, we using glued to make the component stand off the wave which will be done a good job to make fillet at the component terminal.
You lost me here. Are you using peelable mask instead of a fixture?
If you really want to reflow some parts and wave others, get a new paste stencil without apertures for the parts you're gluing on.
I have done what you're doing before as a trial. Print paste, dispense glue, place components, reflow/cure with a reflow profile. We used a glue that was spec'd for that profile. We did it because we didn't have a chip wave and wanted to try to ensure enough solder on SOT-23 packages. It didn't work well (got chipbonder in the paste...imagine that) and I convinced them to buy a chip wave.