Curing paint with Heat gun

[2_DONE_THE_TON]

hey guys!

i just decided to repaint the cylinders and engine cases of my RD 250.
in europe we dont have that big of asortement coming to high temperature paint.

i would use this dupli color.
engine is getting blasted,the whole preparation is done like the stickie in the forum.

what you guys think about that dupli rattle can?

since the paint needs to get heat cured,my idea was to put some heat of the heat gun from the backside of the case (not burning heat) and in the inside of the cylinder to cure the paint from "inside".
is this clever or should u just wait till the first time the motor starts up to cure?

is this paint gasoline immune or does it need heat clear coat?

thanks in advance!

 

[yorkie350]

Hi mate yeah bit of heat don't hurt i did same on mine used the wifes hairdryer haha didn't have a proper heat gun i warmed up the casings before paint not too much fired on the paint then just kept heat moving over back side of cases and painted side too once it start curing mate its quite tough, now ive run the motor a few times its a solid base .Fuel aint hurt it yet thats for gloss black. For silver ide do same way but put a clear coat after always do a test part

 

[2_DONE_THE_TON]

AW: Curing paint with Heat gun

did you use the dupli color paint?
does it need any primer or just good prep?

ill paint them flat black so ill guess ill need no clear coat?!or will gas eat up the black without it?

 

[yorkie350]

Didnt need to prime, cleaned all parts then wiped down with surface prep & tack rags have used dupli colour before has held up ok but have always used gloss not sure bout matt / satin finish, i always do a test piece and dont put it on too thick build it up

 

[hillsy]

You can cure the parts in an oven.

But beware - the fumes aren't nice

 

[2_DONE_THE_TON]

You can cure the parts in an oven.

But beware - the fumes aren't nice

i´m married no way.

i think i go with the heat gun!

 

[SONICJK]

If it's warm where you are you can paint a box black, and put the parts inside it outside for a few days. Should get nice and toasty inside

 

[hillsy]

i´m married no way.

i think i go with the heat gun!

Have you got a hooded BBQ? They work well too.....and being outside it's wife friendly ;D

 

[BTF]

You can cure the parts in an oven.

But beware - the fumes aren't nice

Yeah ,the fumes made our canary hang upside down on the perch. 2X for the BBQ

 

[2_DONE_THE_TON]

alright gonna bake outside with alot of ventilation.

so just read that it needs to get baked at 90 fahrenheit for about an hour.

how many coats do you apply?

i figured best way would be apply a coat let it dry for 1-2 hours then bake for 1 hour,apply next coat,bake again.finished.

 

[linadsenoj]

Also allow some time from spraying to heat curing. This gives a firmer coat

Post the results!

 

[stroker crazy]

bake for 1 hour …

Best to apply all coats within 1 hour, with 10 minutes between coats.

Let dry for at least 3-4 hours.

Bake.

Baking between coats would probably cause adhesion problems!

Crazy

 

[2_DONE_THE_TON]

Best to apply all coats within 1 hour, with 10 minutes between coats.

Let dry for at least 3-4 hours.

Bake.

Baking between coats would probably cause adhesion problems!

Crazy

thanks stroker!

how many layers would you lay down on cylinderfins and motor?

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[stroker crazy]

how many layers …?

Just enough to get the required coverage; say two light coats followed by a medium coat.

Less is better than more!

Crazy

 

[2_DONE_THE_TON]

Less is better than more!

Crazy

heard about that,too thick will make it chip after some time!

thanks!

 

[2_DONE_THE_TON]

Also allow some time from spraying to heat curing. This gives a firmer coat

Post the results!

hey guys!finally found time to spraypaint those suckers...it came out great..that flat black has a nice deepness....

so here´s another question.i want to file down the egine fins a little bit...shall i do this before or after i bake the paint?

what do you guys use to file it down?

 

[HollywoodMX]

Why do you want to file the fins? To copy the ram air? I wouldn't file them as they are not that strong to take that kind of motion from a file. I would use a flap disk.

 

[yorkie350]

I wouldnt use powertools to get that sort of detail use a flat block like wood or cork with wet n dry sandpaper bout 400 grade :-\ nothing too rough and gently does it ??? may take a while but ya aint gonna trash that decent paint finish mate looks cool 8)

 

[fresh_c]

Cleaning the fin edges by hand sucks. If I had a compressor, I would have used a die grinder with a scotch bright pad.

 

[ILoveThumpers]

You really don't want to use any kind of power tool to do that. Avoiding heat is the name of the game.

Use a more aggressive paper if its not going fast enough for you by hand.

-Deek

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