Spraying Moab Entrada cotton rag with PremierArt/Hahnemule

[bdp]

I'm fairly new to spraying these prints, but I do a bit of printing for others so need to get it right.

The main problem I have is when I apply the second coat (after turning 90 degrees as per the instruction) I often see a buildup on the denser areas of the prints - blacks and deep colours - which stays there even after it has dried. It's a patchy haze which can be seen at an angle and looks pretty bad. My first thought is that I have applied too much spray, but I am only doing two coats and the can recommends 2-3. I move pretty quickly, keep the can a good 10 inches away from the print, spray with the print vertical (or close to) and leave it at least the recommended 3-4 minutes between coats. I let the prints dry before spraying for 2-3 days.

I'm tempted to just leave it at one coat, but I'm worried it won't have complete and even coverage.

I have had success with spraying on Hahnemuhle paper without seeing this buildup, so maybe the Moab paper can't take or doesn't need as much spray.

Has anyone else experienced this problem and solved it?

PS the fumes are brutal - I wear a proper mask with an organic filter but even so the smell seems to get into my skin and clothes and hangs around for ages. I need better ventilation I guess.

Ben

[dgberg]

I have the Premier Art and have used it several times on matte papers. I don't think you have nearly enough finish on the print. When spraying my Museo Art(matte) cards the first and second coats evaporate very quickly with more of a buildup on some print colors. The more you put on the more it seals the pores. After it has soaked in and sealed the final coat or two will now lay on top and should be the same sheen across the print. If you have any flat spots that means it still needs another coat. As a solvent based laquer product it has 10% of solids. Which means 90% are solvents and evaporates and 10% of solids stick or lay on top. Sprayed furniture in our cabinetry business for 25 years and know finishes very well. This is real thin stuff and you just need enough finish to seal and cover properly. The more matte finish papers you use the more coats you will need.