Fibres appear on canvas after painting
it is pretty obvious that you did not prepared canvas correctly, before you use your medium you need to prepare it. use gesso to even the surface of the canvas seem like you are using water based paint on natural fibers.
fibres in the canvas are picking out the water, swell and raise from the surface,
easiest way to fix this problem is to stretch well your canvas, then use flat knife or broad spatula and evenly work gesso into the working surface, wait day or two and repeat the exercise, sometime even more than twice, if you are doing showpiece which will be covered with high gloss finish, apply at least three to four layers of gesso sanding with 600grit block between layers, your artpiece will then really shine.
if you work on paper, use good quality aquarell (watercolour) or similar paper, stretch it well, pre-wash and they use your airbrush tints or paints. gesso or fixative can be used as well on paper.
if you paint on wood, you definitely need two layers of gesso, if this is very light wood - probably even more, oak and dense woods, especially well seasoned (i tend to buy wood from demolition sites and then make my own as i need) are best for the purpose, do not use planks thinner than 10mm (3/8"), my preferred is actually 20mm (3/4").
if you have any other question - feel free to ask, do not forget to rate... :-)
Jan 30, 2014 |
Airbrush-Depot Master Airbrush Model G23...