Greetings,
We use 60°C (140°) to 65°C (149°F) with aggressive compressed air agitation.
Higher etching temperatures result in shorter etching times with less
undercutting.
Thanks, Ned
Ned Seith
Nedtronics
1716 lodi Avenue
San Mateo, CA 94401
650-473-0200 x111
FAX 650-473-0357
nedtron@...