This new primer I bought is so damn slippry, ideas on how i can give it more tooth?

[timpaatkins]

The surface has no tooth to it at all, its just like slick plastic.... grr Ive already coated a bunch of Masonite (that i sanded first) three times with this new acrylic primer that i got at a hardware store.
A friend suggested to mix it with some marble dust, however it isn't available where i am now (small village Sweden). Ive tried sanding it with a rough sandpaper, but it just isn't cutting the mustard. Help would be appreciated!
I was thinking of giving the whole thing a coat of Liquin or Walnut alkyd and then let that set for a while, but its just such a pain to have to lug around a bunch of semi sticky boards.

Cheers Tim

[Elwell]

Try wet sanding it with wet-and-dry sandpaper. Don't wipe it clean, just let the wet surface dry (you can smooth it out with a brush first). Or, if you have access to an art supply store, which it sounds like you don't :(, you could get some acrylic modeling paste and mix that in. Modeling paste is just marble dust in acrylic medium, but it's easier to find. A coat of acrylic matte medium will also work, some brands are toothier than others.

[Elwell]

Another thought: adding a coat of glossy medium like Liquin or especially walnut alkyd will only make things worse. However, toning the boards with a thin wash of oil paint (just thinned with solvent, no medium) would probably do the trick.

[Chris Bennett]

This may seem a dumb question, but how are you applying it? I find that a heavy coat with a housepainter's brush applied one way, allowed to dry, and another heavy coat at 90 degrees to the first gives me all the tooth I need. It's important to get the bristles of the brush giving you grooves of paint simulating the weave of canvas. If you don't want that effect and are going for a smooth finish, but require tooth, then Elwell's suggestion is the only one I can think of.

[timpaatkins]

Ahh you guys, I love you both!

Ive been using a sponge brush, to there aren't really any grooves to talk about. But i reckon even if there where grooves, it would still bee to slippery. I saw that there was some alkyd primer in the shop the other day, i think I'm gonna try that, but first ill give them a thin coat of diluted oils,as per Tristan's suggestion.