Etch primer questions please

[SRsam]

Hi I've just etch primed under my wheel arches I took it back to bare metal they kurrust treated any areas of rust then etch primed and now have a couple of questions.
I have upol gravitex to go over the etch primer but on the etch primer tin it says do not use polyester materials over it ? What does it mean by this ? Basically can i go over it firstly with a bit of seam sealer in places ? Secondly with upol gravitex? Thanks sam

[totalnova]

I do it in this order, etch primer - seam sealer - primer - paint - underseal

[Benn]

Yes i would seam seal over the etch before.

It most likely says that cause etch has form of acid in it to eat in to help adhesion. So let it dry then seal, then underseal.

I etch everything, seam seal, etch, primer and then paint.

[BRoadGhost]

Vactan followed by Vactan then whatever because it wont then matter.

[SRsam]

Vactan followed by Vactan then whatever because it wont then matter.


Thanks to all of you for your replies . Much appreciated sam