Just finished up my first run of house paint prints. Turned out great! I used a flat base but have read in various threads that a gloss or semi gloss is preferred. Why? Pure looks or for function? I did add about 25% speedball acrylic to darken and thicken things up. Did 130 prints 19"X25" with no gumming or clogging...without floetrol. Anyone else ever leave out the additives?
I usually just mix with speedball. For me it's more about using what I have on hand to mix a desired color than achieving any certain consistency. I've not really run into any problems yet. (knock wood)
I've only used it a couple times and that was cause I didn't have time to order more speedball at the time, worked awesome for me. Especially black house paint, as it's not a chalky looking/feeling as the Speedball stuff.