Must Primer Be Sanded?

F

FirstPaint

Hi,

My primer coat has turned out quite nice and I am wondering if it is absolutely necessary for me to sand it for paint adhesion? I used a 2k eurathane primer surfaced from PPG. I am following that with Flat black. I’ve looked all over the inter webs and everywhere I’ve found has said it’s best to sand primer before paint but I cannot determine whether it’s completely necessary

thank you for your time.
 
Hi,

My primer coat has turned out quite nice and I am wondering if it is absolutely necessary for me to sand it for paint adhesion? I used a 2k eurathane primer surfaced from PPG. I am following that with Flat black. I’ve looked all over the inter webs and everywhere I’ve found has said it’s best to sand primer before paint but I cannot determine whether it’s completely necessary

thank you for your time.

Also I got this stuff off of Craigslist and it expired last month. Does that ruin auto paint and primers?
 
Thanks fellas. Sanding it is then.

just found out the paint I got off Craigslist is for aerospace applications. Now the fun of finding what activator I can actually procure to mix with it.
 
Again once you look at the TDS it will list the activator. TDS stands for Technical Data Sheet. It will list what activator and the ratio to mix it among other things. So find the TDS and all your questions will be answered.
 
Back
Top