How do you get rid of the orange peel look?

How do you get rid of the orange peel look?

Post by Davi » Tue, 12 May 1998 04:00:00



I am just finishing a PML Ariel and have noticed that the finish has parts
that have an orange peel look instead of a smooth finish.  Will car polish
smooth out the finish or is there another way?  Thanks in advance.

David.

--
NAR #72431
TRA #6033
L.U.N.A.R. #568

 
 
 

How do you get rid of the orange peel look?

Post by Bob Fortun » Tue, 12 May 1998 04:00:00


hey david,

was at your lunar night launch last month, first time there and had a
great time. the launch was well organized and fun.  even joined your
club! too bad about the faa night waiver thing, though.

i don't know if you can buff it out. maybe try wet sanding it 600 or
finer grit, use water or an oil like lemon or tung oil, then wipe dry.
might even try rottenstone, cheesecloth and oil. find rottenstone at osh
and follow directions on the box.

clean well, especially if you use an oil,  then coat with clear spray
acrylic a bunch of times. you might try lots o' coats of acrylic floor
wax, like future or mop n' top (you know, the desert topping and floor
wax combo).

bob

 
 
 

How do you get rid of the orange peel look?

Post by Stu Barret » Wed, 13 May 1998 04:00:00


Assuming that you painted it...

It may be a little late, but whenever I paint (notice, my rockets are not
built to look pretty!) I use lots of auto primer to get a smooth finish
before I paint.  With PML airframes, you also need lots of spotting putty to
fill the seams.

I have, on occasion, applied primer over paint and resanded.  This really
only works well if you have a dark color paint scheme.

Chuck Gibke had a 10' rule; if you can't see it from 10' then its OK.  I
like that rule!

stu

Quote:
>I am just finishing a PML Ariel and have noticed that the finish has parts
>that have an orange peel look instead of a smooth finish.  Will car polish
>smooth out the finish or is there another way?  Thanks in advance.

>David.

>--
>NAR #72431
>TRA #6033
>L.U.N.A.R. #568

 
 
 

How do you get rid of the orange peel look?

Post by Brett Buc » Wed, 13 May 1998 04:00:00


Quote:

> I am just finishing a PML Ariel and have noticed that the finish has parts
> that have an orange peel look instead of a smooth finish.  Will car polish
> smooth out the finish or is there another way?  Thanks in advance.

    David,
     Polishing with car polish alone will probably not remove it unless it is
very shallow. The type of paint determines the exact technique, but a solution
is likely to involve a lot of wet-sanding with 1000 grit and finer paper and
then polish. Even 600 if it's really deep. I would also point out that color
paint does not polish all that well. It might be preferable to sand it smoth
with 600-1000 paper and then use clear (this time with sufficient thinner to
preclude the orange peel). It will polish up much better.
    Of course, it's entirely a matter of preference how good it needs to be.
    Brett
 
 
 

How do you get rid of the orange peel look?

Post by KMiskim » Thu, 14 May 1998 04:00:00


Quote:
> I am just finishing a PML Ariel and have noticed that the finish has parts
>> that have an orange peel look instead of a smooth finish.  Will car polish
>> smooth out the finish or is there another way?  Thanks in advance.

Well you're half way there, I paint cars for a living when I'm not building and
flying model rockets, and the best way to remove the orange peel from a finish
is to first wet sand the model with 1200 or 1500 grit sandpaper. Do this until
the entire model (or area) has a even, satin - looking appearance. I should
mention at this point that  clearcoated finishes work better with this
technique then "regular"(non-clearcoated) finishes. Although regular finishes
will work, the shine will not be as impressive. Anyway, after all wet sanding
is complete, compound the model with Meguire's #5 compound. this should bring
the shine back up. After this done, use a liquid or paste automotive wax.

hope this has been of some help to you.

Kirk

**Next Rocket Launch At Goddard is 5/17/98* *

 
 
 

How do you get rid of the orange peel look?

Post by John Schult » Thu, 14 May 1998 04:00:00


Unfortunately carpolish will follow the contours of the surface.
To fix this problem you must first sand with a sanding block past the flaw
to a smooth layer.
As mentioned before, wet sanding is probably the best method.
The orange peel effect may be caused by a contamination of the surface such
as a little grease or skin oil or it may occur because of an improper
setting of your spray gun (not enough air pressure) or too thick of a paint
( add thinner).
Correct the problem & spray again.
If you are using aerosols, the often have a problem of "dusting" where the
paint dries too quickly and you need to carry the spray past the end of the
BT to get a smooth finish.

Quote:

>I am just finishing a PML Ariel and have noticed that the finish has parts
>that have an orange peel look instead of a smooth finish.  Will car polish
>smooth out the finish or is there another way?  Thanks in advance.

>David.

>--
>NAR #72431
>TRA #6033
>L.U.N.A.R. #568

 
 
 

How do you get rid of the orange peel look?

Post by Davi » Fri, 15 May 1998 04:00:00


I just wanted to post a thank you for all of the helpful responses.  Looks
like I will be doing some more sanding.

David.

--
NAR #72431
TRA #6033
L.U.N.A.R. #568

 
 
 

How do you get rid of the orange peel look?

Post by dbac » Sun, 17 May 1998 04:00:00


The best way to get rid of orange peel is to prevent it.  If you are using
"spray paint" in cans as opposed to a spray gun, here is a trick I use to
get a slick, non-orange peel finish:  warm your can of paint to allow the
paint to flow better once it is applied.  I know, "Danger Will Robinson!",
actually it can be done safely.  Run a few inches of WARM water, not hot,
into a sink and place your spray can in it for a few minutes.  Remove, dry
can (or you will have other problems!) and agitate, you will notice the
warmth of the can and will develop a touch for just how warm to get it.
Don't over do it!  Better to spray a little cold and get a little orange
peel than to blow up a can of spray paint in the house (or anywhere!)  Like
I say, with practice, you will be able to tell by touch what the right
temperature is.  This works with all paints I have used.  Krylon looks great
and Formula U looks professional.  The first time I heard of this I tossed
it aside for about a year until I saw it right on a can of spray (I can't
remember the brand),  It really helps.  Remember to spray multiple light
coats, warm your can between coats, and make the last coat the heaviest for
the smoothest finish.  As always, "practice on an inconspicious area first"
because you may have a little more tendancy to create drips.

Tip # 2:  To sand your finish down smooth on the tube, or anytime you want
to sand a tube with a block, use peel and stick vinyl floor tiles for a
sanding pad.  Cut a piece, curve it to the approx. radius of your tube then
stick on the paper.  It is the best and cheapest curved sanding pad I've
found.

David Bacque
TRA 3006

Quote:


>>I am just finishing a PML Ariel and have noticed that the finish has parts
>>that have an orange peel look instead of a smooth finish.  Will car polish
>>smooth out the finish or is there another way?  Thanks in advance.

>>David.

>>--
>>NAR #72431
>>TRA #6033
>>L.U.N.A.R. #568

 
 
 

How do you get rid of the orange peel look?

Post by Ted Cochr » Sun, 17 May 1998 04:00:00



Snip

Quote:
>Tip # 2:  To sand your finish down smooth on the tube, or anytime you want
>to sand a tube with a block, use peel and stick vinyl floor tiles for a
>sanding pad.  

Awesome idea!

--tc

My opinions only.

 
 
 

How do you get rid of the orange peel look?

Post by Tom All » Mon, 18 May 1998 04:00:00


Howdy
 The best way to remove orange peel is with a model polishing kit. These
are available at most large hobby shops. They typically have several
very fine grits of sandpaper & polishing liquid & wax. The paint must be
completely dry before you start polishing or you will clog the fine
sandpaper. The results are amazing, but too time consuming for me.
Tom Allen