Anything that you can use on a plastic model, as they too are often made of polystyrene! But I would recommend a water-based house paint! Even ordinary watercolours (Dr Martin's airbrush colours to mention one brand) can be added to PVA and used as a paint that will stick very well! Acrylic paints, as used by artists, or most uretane paints, to mention a few! Not solvent-based laquers, of course! Tord, Sweden *'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.*'`'*.,.* -- If reply difficulties - use [EMAIL PROTECTED] Tord S. Eriksson, Ovralidsg.25:5, S-422 47 Hisings Backa, Sweden RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]