Painting Your Blades 101As suggested by Mojave and Peter Rob, here is the info that I had in a different link, that both thought should be in this thread!!
Here is the material that I use along with some tips on how to paint you main blades.. I am sure there are other ways and materials that can be used, but this works for me.. so here goes!!
Here is how I paint blades, and the materials that I use..
The above pic's show the materials that I use to paint blades.. the windex is used to clean the blades, and later after scuffing has been done the alcohol is used to clean the blades one more time prior to starting paint.
The above show how the blades are prepared.. notice that the blades have been marked so that they go on the head the same way each time. I then cut a piece of masking tape and put the same number on it, and that is what I use to keep track of what is going on during the paint process.
Now you see the blades with prime on them. I like to coat the bottom first, and will apply 2 coats, and let them dry.. then I turn the blades over and spray 2 coats on the top surface. Again, let the paint dry.. on a nice warm day, you can shoot this paint about every 15 minutes or so, but do not rush it.. let the prime dry for at least one hour prior to moving to the next steps.
Now the blades are weighed, and you can see the sticky note that has the first weight of each blade, and any diference in weight is noted..I add weight to the blades that need it to match the heaviest one.. take your time here, and a little practice and you can get them mighty close...when you are within a couple of 10th's you can scuff the heavier blades a bit to bring them into a 10th or 2.. with practice you can get pretty accurate too!! (OR LUCKY!!
Once they are close to matched, it is time for the first top coats. Here I like to shoot around the edges of each blade.. then I will add the first coat to the bottom of each blade.. let them set for about 15 to 30 minutes and then add the second coat to make certain that you have good coverage.. once that is complete, let them dry about 60 minutes.. then flip them over, and use a little 800 wet paper to just lightly scuff the top of each blade to remove any overspray or dust that might be stuck to each blade.. then use a clean papertowel to dry each blade.. let them sit and make sure that there is no water left on the blade "anywhere".. with that, go around the edges of each blade first, and then shoot the first cover coat... wait about 30 minutes and shoot the top coat... that finishes the color application. These blades will sit in my shop for the next day or so, and then I will tape off for the stripes.. I will shoot more pic's of that process and post it also...but tomorrow, I will weigh the blades again, and if I have to add paint, I will again bring them to very close so that after the stripping is on, it will just take a bit of clear on the bottoms to bring them into balance again.. I do attempt to keep them close by paying attention to how many stokes it takes to cover each blade and try to do the same on each... so..... PREP THOSE BLADES FOR PAINT!!!!
I have blades that have now been flown 3 seasons and they look like the day that they were painted..so I am sticking with what works for me..and hopefully this info will help those that are worried about how and what to use..
Good buddy Rkfish turned me onto this paint, and I have not used anything since..(OH and these blades belong to his 1/3rd scale 300..hope he likes them!!!
So, with that said, let me load the pic's and get the final info to all those sitting on the edge of their seats waiting to see how these came out!!!!
The above pitures are showing how the blades are masked for the markings wanted, in this case 100mm yellow, 48mm white and another 100mm of yellow, on the top only with about 5mm wrap around the leading edge of the blade, "ONLY USE PENCIL" to make very fine marks for your tape. At this point make certain the tape is pressed down and tight.. then, and no you are not seeing things.. my next step is to shoot a coat of the color that I masked over (white)
..this will make sure that you do not get any of the new color running under your tape, and give you a nice sharp paint edge.
The Yellow paint being applied..shoot a light "dust" coat along all the tape edges... wait about 5 minutes and then you can apply the wet coat of the yellow..then let the blades set about 1-2 hours and begin removing the tape.. always pull the tape back over itself with about a 45 degree angle to the paint.. this will help to keep the paint from pulling up as you remove the tape.
The blades should look like this once the tape is off...note the clean lines...
Now they are ready to be weighed again to see how far out of balance they are...
As you can see, the heavy blade, number 3 is 428.2 and blade number 1 is light by .3 of a gram, and number 2 is light by .4 of a gram.. not too bad
So, now it is onto the clear coat (Clear Coat is also made by the same company as the paint, and that is what I use).. I shoot a light coat on the bottoms of blade numbers 1 and 2... let it dry for 30 minutes and weigh them to see how they match up to number 3...After applying the clear, I had to add a bit more to 1 and 2 and the final weight came in at 429.4 after adjusting each blade... the origianl starting weight was 417.5 so the total weight added to each blade was 11.7 grams..
So, you can see that the weight of the paint is really not that much once it is all cured...ALSO just one more check..
After 48hrs, check the weight of all the blades one more time just to know that they are fully cured and there will be no change after that except for the bugs you will be killing!!!
I hope this will help you guys out next time you want to paint a set of blades... There are other ways, but this is the one that works for me.. and hope it will for you too.. Taking your time and being patient is key to your success.. if you are not sure you waited long enough, wait another 30 minutes or so, then move on..
, better too long then not long enough
Best of luck to all... Stan
AMA 2918-Team JR, Spin Blades,,Castle Creations, Unique Aircraft