I know glasurit has a poly primer that they say you should not wetsand or directly top coat. I am thinking that a true poly primer is like bodyfiller where you shouldn't wetsand. Products like slicksand and featherfill come off to me as a hybrid product where wetsanding is fine. This is just my assumption, I don't really know.

On a side note I finally tried featherfill g2 4:1 and really like it. I find you can not force dry it or it sands like garbage, best to just let it dry overnight.

Thanks
I am using Slick Sand
Jimmo and JimC I wont try wet sanding it.

I was wondering if I could use it like regular primer wet sand it and then top coat but you guy's answered the question... NO

Doright wrote:


Not so much No, more like I wouldn't do it if it were my car. According to evercoat you can topcoat it directly.

Thanks Jim
I am going to refrain from doing that.

I've only used one brand of poly primer (U-Pol Reface). The tech sheet says wet or dry sand, but (of course) it must be dried thoroughly before proceeding. It can be topcoated directly, but recommends a wet on wet primer (a.k.a. sealer) first, which is how I've always used it.

I'm still an epoxy virgin but my Valspar/DeBeer/House of Kolors tech guy has given me a gallon to try out. It's their Octoral brand, which is aimed at commercial and high production, but he reckons adhesion and protection is just as good as the HOK one, but it doesn't have as much build, or sand as easily.

On a side note, he strongly recommended not using a water borne base straight over epoxy (sanded or not), as adhesion might be a problem due to the like of chemical 'bite' from the base. He's told me to use WOW / sealer first.

I have been useing lots of this Slick Sand stuff on the misc pieces on this Ford project.

I wont be reordering Slick sand in particular any more due too being so hard to sand after it sits for long periods But I will be useing Poly's more.
I love this stuff! I have gotten my Panels soooo Flat and true I am so amazed how easy I really like this stuff! I'm going to get real Feather fill next time.

Try the 4:1.

I haven't tried the 4:1, but I do use slick sand on a regular basis. I love the stuff. I wouldn't wetsand it simply because it's so porous it would take a while for the water to dry out of it.... and I usually don't sand it that fine. go up to 180 and shoot another primer layer.

Epoxy, filler, more epoxy, slicksand, blocked, more epoxy, 2k urethane primer, base, clear. epoxy layer in there for a sealer if needed. that's my method