painting over ultracote

[jonmiller]

hey guys

been asked to paint one of these

http://www.3dhobbyshop.com/detail.aspx?ID=2345


:nature-smiley-006:


the owner said its balsa interior coated with white Ultracote.
where do i start...

just found out what i needed to know after being asked to paint an rc boat with gelcoat on it....
then along comes this painting proposal. another thing i dont have a clue about.
all good though, having to learn new things all the time. does the brain good. :)

anyway, anyone with any experiences on the subject, input greatly appreciated.

cheerz,

jon

:)

[ABD]

I just put one of those together for a pal..Was an old one, made out of fiberglass over balsa wood...Most gel coats/fiberglass I prep like anything else...Clean, Sand, clean, Prime..etc.....One thing with gel coat and glass..Sometimes if you sand to deep you'll expose lil pinholes in the resin/gelcoat...Sometimes they are hard to see till you paint over them, then they stick out like crazy..

Easy to cover if you expose them, just glaze over with resin or bodyfill, sand smooth..Works for me anyway:D

[jonmiller]

i thought the ultracote was some sort of thick vinyl type material??

[ABD]

i thought the ultracote was some sort of thick vinyl type material??

Sorry no clue...One I messed with had some stickers on it but it was painted white 1st.

[jonmiller]

excellent, thanks hi rise. so scuffing n degreasing etc. then any particular sort of primer? would the same primer i used on my abs shell and that ime going to use on my gelgoat be ok to use on the ultracote? its a dtm primer. upol #8. when clearing, is any particular kind of clear needed?

many thanks for the replies guys.

[jonmiller]

cool, thanks hi rise.

sorry if this is a silly question, but you said it is fuel proof, so no clear coat was needed? whats fuel proof, the basecoat you used? surely you need a clear coat to have a glossy finish? or did you use 1k paints? they dry to a gloss finish dont they?
sorry for all the silly questions, i just like to be totally clear on things.

cheerz!

jon

:)

[jonmiller]

is this the mfg paint you are on about? will certain 1k paints work.

i dont really want to be trying to source various new products for one job.
cant i paint with my normal paints but use a certain clear that is suitable? arent normal 2k clears suitable and fuel proof?

[REDTAIL]

this plane is covered completly with ultra coat i just cut out the design and ued a sealing gun on it !!but what HI RISE is talking about is
the paint on the cowl is suppose to match the covering i ordered it from a hobby shop

RT
http://i95.photobucket.com/albums/l128/1redtail/Jim_and_the_big_plane.jpg

[smokingtommy]

the gunk that comes out of a RC engin is very oily as its made up from nitomethonal and oils like caster its very thick ,
the main problem painting ultra coat is it streches in heat and shinks and after time it will start to rinkle so after some time your hard work would be wasted as it would flake of
If its just the cowl he wants painted well knock your self out and go to town on it but make sure you fule proof it

[REDTAIL]

i have been painting ultra and mono for years without a hitch . got my first radio in 75


RT