Original Posted By: "walter evans"
I painted all the metal parts including the cowl, gear, struts, etc with can spray paint & primer bought at Kmart.Mike B Piet N687MB (Mr Sam )________________________________________________________________________________
Pietenpol-List: painting
Re: Pietenpol-List: painting
Original Posted By: "Warren D. Shoun"
Subject: Re: Pietenpol-List: paintingI'm going with what I have on the shelves, Thanks.Corky________________________________________________________________________________Date: Fri, 18 May 2001 13:47:49 -0700
Subject: Re: Pietenpol-List: paintingI'm going with what I have on the shelves, Thanks.Corky________________________________________________________________________________Date: Fri, 18 May 2001 13:47:49 -0700
Pietenpol-List: painting
Original Posted By: "skellytown flyer"
Thank you all for answering my questions.Let's never forget what a fantastic resource this group is. I appreciateeverybody who cares to take the time and answer/discuss questions that comeup, but I am especially appreciative of those who have finished building(some years back), yet still volunteer their time patiently helping andencouraging those still building, or even daydreaming (answering the samequestions year after year).I view this as a service to the legacy of this legendary aircraft and itsdesigner. Let's all pitch in when areas in which we are experienced arediscussed, and not stop once we're flying.Thanks again!Douwe________________________________________________________________________________Subject: Pietenpol-List: painting
Thank you all for answering my questions.Let's never forget what a fantastic resource this group is. I appreciateeverybody who cares to take the time and answer/discuss questions that comeup, but I am especially appreciative of those who have finished building(some years back), yet still volunteer their time patiently helping andencouraging those still building, or even daydreaming (answering the samequestions year after year).I view this as a service to the legacy of this legendary aircraft and itsdesigner. Let's all pitch in when areas in which we are experienced arediscussed, and not stop once we're flying.Thanks again!Douwe________________________________________________________________________________Subject: Pietenpol-List: painting
Original Posted By: "Barry Davis"
OK I finally got to the point of spraying my fuselage today.just shot the lastcoat of Poly-spray about an hour and a half earlier. mixed up some Pontiac redlike the instructions said-about 1/4 reducer. and shot one side with it layingon it's side.it really looks rough.I just am not getting it to flow out smooth.would look just as well with a roller.I even put some MEK in the gun and wentback and misted it hoping it might smooth it out but it just isn't layingdown flat.it might fly just as well if dimples reduce drag on a golfball I guessa rough surface on a Piet won't slow it down much more but I can't see thepoint in doing anymore unless I can do better.I'm using a cheap HVLP gun and itjust isn't putting out a fine enough mist as far as I can tell. RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
OK I finally got to the point of spraying my fuselage today.just shot the lastcoat of Poly-spray about an hour and a half earlier. mixed up some Pontiac redlike the instructions said-about 1/4 reducer. and shot one side with it layingon it's side.it really looks rough.I just am not getting it to flow out smooth.would look just as well with a roller.I even put some MEK in the gun and wentback and misted it hoping it might smooth it out but it just isn't layingdown flat.it might fly just as well if dimples reduce drag on a golfball I guessa rough surface on a Piet won't slow it down much more but I can't see thepoint in doing anymore unless I can do better.I'm using a cheap HVLP gun and itjust isn't putting out a fine enough mist as far as I can tell. RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: painting
Original Posted By: "jimd"
This is especially to Rick HollandSaw on the news this morning that you are in line for 2 to 4 feet of snowtoday. Just wanted to let you know that we are flying down to Florida in themorning for Sun n Fun. It should be in the 80's all week. We will bethinking of you.See you at BrodheadBarry DavisBig Piet Builder________________________________________________________________________________Subject: Pietenpol-List: Re: painting
This is especially to Rick HollandSaw on the news this morning that you are in line for 2 to 4 feet of snowtoday. Just wanted to let you know that we are flying down to Florida in themorning for Sun n Fun. It should be in the 80's all week. We will bethinking of you.See you at BrodheadBarry DavisBig Piet Builder________________________________________________________________________________Subject: Pietenpol-List: Re: painting
Re: Pietenpol-List: To Sun 'n Fun Tomorrow
Original Posted By: Rick Holland
When you are spraying there are a number of factors that matter for getting a goodfinish. Cheap HVLP guns can work, but they are harder to get good results with than goodHVLP guns, as they usually have a smaller pattern. With an HVLP gun in generalyou need lots of volume in your compressor, which practically means at minimuma 220V compressor that puts out about 15cfm at 40 psi. (There are not any110V ones that do that, and its hard to get a cheap compressor that does.) Soyour $20 gun from HF to work well takes a $400 compressor to get enough air towork well.Second thing is the viscosity of the paint, it needs to be well mixed, very uniformthroughout, so it should be ran through a paint filter screen (those littlefunnel things they sell at paint stores) to make sure there are no lumps/globsof paint, so the paint will flow smoothly thru the gun. The thickness of thepaint needs to be correct. Not sure for polyspray what that thickness is, butyou measure it typically with a drip cup. The cup has a precise sized holein it, you put the paint in and count the number of drips in a period of time,if there are not enough the paint is to thick and needs a small amount of whateverthe appropriate thinner is added to it, further mixing, then checking untilthe thickness is correct. Third thing is practice/get it right before you spray your plane. Make up a squareframe out of scrap wood, stretch some cloth over it, shrink it, and then useit as a test panel to get the priming/painting right before doing it on theplane. You want to do this like a science experiment, keep track of the temp/humidity,take notes on how you adjusted the spray from your first light mistcoats thru to the final coat, keep track of the time between coats, and as muchinformation about what the mix of paint and thinner was as possible. Then whenyou have a working combination of settings that gets a result you wouldn'tmind on your plane you use that to actually do the plane.If you don't have a big enough compressor you can rent one, or use a cheap non-hvlpgun. HF has one that takes about 6cfm at 40psi, which is about what most110V compressors can put out, and I am told it gives good results, though I haven'ttried it yet. So for $20-30 you can have something that works well. Of courseits not HVLP so the wasted paint is much higher and that polytone costsa lot, so you may not end up saving anything over getting a bigger compressor.Spraying MEK sounds like a bad idea in general though, as it is not something youshould be breathing, don't recall any instructions that say to spray it.. hopeyour using a high quality respirator.I am sure some of the other guys with more painting experience will have advicefor you. With the finish already not to your liking I am not sure what to suggest.JimRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 18 Apr 2009 09:22:37 -0600Subject: Re: Pietenpol-List: To Sun 'n Fun Tomorrow
When you are spraying there are a number of factors that matter for getting a goodfinish. Cheap HVLP guns can work, but they are harder to get good results with than goodHVLP guns, as they usually have a smaller pattern. With an HVLP gun in generalyou need lots of volume in your compressor, which practically means at minimuma 220V compressor that puts out about 15cfm at 40 psi. (There are not any110V ones that do that, and its hard to get a cheap compressor that does.) Soyour $20 gun from HF to work well takes a $400 compressor to get enough air towork well.Second thing is the viscosity of the paint, it needs to be well mixed, very uniformthroughout, so it should be ran through a paint filter screen (those littlefunnel things they sell at paint stores) to make sure there are no lumps/globsof paint, so the paint will flow smoothly thru the gun. The thickness of thepaint needs to be correct. Not sure for polyspray what that thickness is, butyou measure it typically with a drip cup. The cup has a precise sized holein it, you put the paint in and count the number of drips in a period of time,if there are not enough the paint is to thick and needs a small amount of whateverthe appropriate thinner is added to it, further mixing, then checking untilthe thickness is correct. Third thing is practice/get it right before you spray your plane. Make up a squareframe out of scrap wood, stretch some cloth over it, shrink it, and then useit as a test panel to get the priming/painting right before doing it on theplane. You want to do this like a science experiment, keep track of the temp/humidity,take notes on how you adjusted the spray from your first light mistcoats thru to the final coat, keep track of the time between coats, and as muchinformation about what the mix of paint and thinner was as possible. Then whenyou have a working combination of settings that gets a result you wouldn'tmind on your plane you use that to actually do the plane.If you don't have a big enough compressor you can rent one, or use a cheap non-hvlpgun. HF has one that takes about 6cfm at 40psi, which is about what most110V compressors can put out, and I am told it gives good results, though I haven'ttried it yet. So for $20-30 you can have something that works well. Of courseits not HVLP so the wasted paint is much higher and that polytone costsa lot, so you may not end up saving anything over getting a bigger compressor.Spraying MEK sounds like a bad idea in general though, as it is not something youshould be breathing, don't recall any instructions that say to spray it.. hopeyour using a high quality respirator.I am sure some of the other guys with more painting experience will have advicefor you. With the finish already not to your liking I am not sure what to suggest.JimRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sat, 18 Apr 2009 09:22:37 -0600Subject: Re: Pietenpol-List: To Sun 'n Fun Tomorrow
Pietenpol-List: Re: painting
Original Posted By: "jimd"
Jim thanks for the tips. as usual I didn't buy enough poly-tone to waste much anddidn't try to test spray first. I did find my older cheaper Harbor freightgun I used to use with better success.it had a cracked neck on the cup that wouldcause drips and that is why i bought the more expensive Campbell Hausfeldgun I used this time.I wet sanded the area some today to smooth it down some andcleaned the old gun good and patched the cup with JB weld. I'm going to tryto spray with it and expect better results. now that I think about it the lasttime I used the new one it didn't work well though not this bad.I will experimentwith lower pressure and test more.I have about a 300 gallon pressure tankto losing air is not a problem and I have a paint regulator/air dryer so thatisn't really a problem.I expect the newer gun just isn't the right size orificefor one thing. I'm pretty sure I read that there are at least 3 differentsize orifices for different paints and I would expect I have one that is notsuited well to what I'm doing.RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: painting
Jim thanks for the tips. as usual I didn't buy enough poly-tone to waste much anddidn't try to test spray first. I did find my older cheaper Harbor freightgun I used to use with better success.it had a cracked neck on the cup that wouldcause drips and that is why i bought the more expensive Campbell Hausfeldgun I used this time.I wet sanded the area some today to smooth it down some andcleaned the old gun good and patched the cup with JB weld. I'm going to tryto spray with it and expect better results. now that I think about it the lasttime I used the new one it didn't work well though not this bad.I will experimentwith lower pressure and test more.I have about a 300 gallon pressure tankto losing air is not a problem and I have a paint regulator/air dryer so thatisn't really a problem.I expect the newer gun just isn't the right size orificefor one thing. I'm pretty sure I read that there are at least 3 differentsize orifices for different paints and I would expect I have one that is notsuited well to what I'm doing.RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: painting
Pietenpol-List: Re: painting
Original Posted By: "skellytown flyer"
Wow, 300 gallon pressure tank? Most big compressor tanks are 60 gallon, thats like 5 big ones.. in one? Must begigantic. If your running big hoses and have a dryer it sounds like the onlycheap thing is your gun. I took the Stewart Systems covering class, my notes had us using; DeVilbiss FinishLine3HVLP guns with 1.2 to 1.4 tips, and a DuPont M50 viscosity cup, whichwe used to measure out 22 drips of the paint with, and then sprayed everythingwith at least a 13 cfm compressor behind it. Anyway I have a cheaper 110V compressor that will not drive a HVLP gun, but I boughtone of the cheap well recommended HF ones and will be trying it out soon.Experimenting with Latex, which is super thick and hard to get a great finishwith, but it is very inexpensive and pretty easy to fix. I bought paint thatmatched my fuselage color for the wings, and actually used some of it to paintmy bathroom (with a roller) looked good, but I digress.JimRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: painting
Wow, 300 gallon pressure tank? Most big compressor tanks are 60 gallon, thats like 5 big ones.. in one? Must begigantic. If your running big hoses and have a dryer it sounds like the onlycheap thing is your gun. I took the Stewart Systems covering class, my notes had us using; DeVilbiss FinishLine3HVLP guns with 1.2 to 1.4 tips, and a DuPont M50 viscosity cup, whichwe used to measure out 22 drips of the paint with, and then sprayed everythingwith at least a 13 cfm compressor behind it. Anyway I have a cheaper 110V compressor that will not drive a HVLP gun, but I boughtone of the cheap well recommended HF ones and will be trying it out soon.Experimenting with Latex, which is super thick and hard to get a great finishwith, but it is very inexpensive and pretty easy to fix. I bought paint thatmatched my fuselage color for the wings, and actually used some of it to paintmy bathroom (with a roller) looked good, but I digress.JimRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: painting