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I know this is a subjective question but two coats of sealer primer seem to be on the MPB to be excessively rough even though I tried to keep a wet edge through out the two coats. It sands pretty easy with 400 but it would take a rag out of your hand if I didn't sand it first, almost like hook and loop rough. Is this normal or did I do something wrong?.... Tedd
Hey tedd, Do you have any pictures? Are you spraying to far away? Enough reducer was it super hot when you sprayed it? What your gun adjusted properly? I open the flow screw to flow more paint and less air a lot of things could do it here's what my primeer looks like just sprayed these yesterday came out really smooth
Probably at least three of recommendations fit, it was pretty hot some where in the low 90's and I was using a medium activator, maybe I should have gone to slow? I had problems with getting enough fluid flow and found a little string of what looked like maybe Teflon tape or something like it in the nozzle at the last of the job. I went by the instructions on the mix but maybe I should have added more reducer. It will work out but add a Hell of a lot of sanding to already labor intensive job.... Thanks for the advice I needed a lots of it yesterday...... Tedd
Probably at least three of recommendations fit, it was pretty hot some where in the low 90's and I was using a medium activator, maybe I should have gone to slow? I had problems with getting enough fluid flow and found a little string of what looked like maybe Teflon tape or something like it in the nozzle at the last of the job. I went by the instructions on the mix but maybe I should have added more reducer. ...... Tedd
At 80 degrees i switch to slow hardener and slow reducer and notice it flows a lot better and I usually always ad a little extra reducer to all my paint to help flow better and I get great results you just have to be careful about getting runs in the paint
Actually, it isn't. Every auto paint manufacturer publishes detailed Technical Data Sheets for it's products. These include surface prep requirements in addition to mixing and recoat times. As an example, here's an excerpt from the PPG Deltron TDS.
What is the size fluid tip on your gun? Thick Primers require larger ones than base/clear tips. This is more likely your issue
1.3 is what I have/ used , I'll check my other gun if I have a 1.2 for primer but I don't remember changing guns or tips before, it's been a while since my last large spray job, like years but My gut felling is that I haven't reduced it enough and I should have used slow activator rather than medium. I was running about 28 lbs at the gun but I don't know if the gauges are correct I'll put it down to 25 lbs and see if it flows any better I can tell this isn't going to be my show car but it might be a good fun car......Tedd
1.3 is WAAAAAAY to small for todays high build primers. 1.8 would be considered a min. and at times i have gone to a 2.0. Over reducing to get out of the gun is telling you something is not right. The speed of hardeners is only there to adjust based or your temps at time of shooting and the amount sprayed(ex. one panel or the whole car).
