Originally Posted by mike newall
Used the 209 on both of our canopy installs both on bare metal and powder coat - no issues.
No idea why you would want to or how you removed the powder coating - it will stick just as hard as anything else to the metal.
Thanks for the reply’s.
Since my original post I have spoken to the Tech Rep for Sika. The Sika Tech Rep informed me, the 206 G+P primer should be used on bare mental substrates, and the 209 D primer on the plexiglass and panted surfaces (such as scuffed powder coated substrates).
Granted, gluing to the powder coating would likely be adequate. However, if one desires a direct metal bond, removal of the powder coating is simply accomplished by using a Roll-Lock Disc.