Reinforcing abs plastic parts
Ted Burgmaier
I am finishing up an Ultra Sport 40 arf and am sure the
abs plastic engine cowling will not last long in the vibrating
environment Anyone tried putting some glass cloth on the
inside of the cowling for reinforcement ?
Thanks
Ted
Bill Fulmer
CA. I like to beef up mounting areas with a little 1/32" ply with cloth
over that.
Also, Goldberg puts out a product named "Cowlbond" that comes wit the
goodies for reinforcing a cowl.
Bill Fulmer
http://www2.cajun.net/~grafix
Ted Burgmaier wrote in message <35D5A440...@montana.com>...
ces...@my-dejanews.com
ted...@montana.com wrote:
> Hi all,
> I am finishing up an Ultra Sport 40 arf and am sure the
> abs plastic engine cowling will not last long in the vibrating
> environment Anyone tried putting some glass cloth on the
> inside of the cowling for reinforcement ?
> Thanks
> Ted
>
>
--
Ted,
I think that I would reinforce this by replacing it with fiberglass if
available. If you are really adament about using it I would use very light
weight fibercloth on the inside and out with resin. Us an old credit card or
similar tool to squeege of the excess resin or epoxy, fill the pores and
paint. It will be heavier than a fiberglass unit but should stand up ok.
Hope this helps!
Steve Cass
--Tucson--
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ALaska2053
writes:
>Ted Burgmaier wrote in message <35D5A440...@montana.com>...
>> Hi all,
>> I am finishing up an Ultra Sport 40 arf and am sure the
>>abs plastic engine cowling will not last long in the vibrating
>>environment Anyone tried putting some glass cloth on the
>>inside of the cowling for reinforcement ?
>>Thanks
>>Ted
>>
>
>
You can also use GOOP adhesive and glass cloth to reinforce the cowl. Its
messy and needs to be done with some care because the solvent in goop will melt
the ABS plastic if over applied but it does yeild a very flexable, almost
indestructable cowl. The GOOP or PFM can be thinned with xylene which you can
find at Home Depot. Use with lots of ventilation.
\/\/\/\//\/\/\/\/\/\/\/\/\/\/\//\/\/\/\/\/\/\//\/\/\/\/\/\/\/\/\/\/\/\//\/
Andrew Laska KA1SLG
New Canaan R/C Society
southern CT RCM
AMA 132883
It' my fleece and I'm sticking to it! Just say NO to marketing hype.
Juan Fernandez
tape & resin to reinforce a crash damage repair on an ABS fuse. I admit
that I've never tried glass, but carbon seems very promising from a
practice piece I did.
G'luck.
Ted Burgmaier wrote:
>
> Hi all,
> I am finishing up an Ultra Sport 40 arf and am sure the
> abs plastic engine cowling will not last long in the vibrating
> environment Anyone tried putting some glass cloth on the
> inside of the cowling for reinforcement ?
> Thanks
> Ted
--
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Juan Fernandez | Any opinions expressed above are
ju...@NOSPAMnortel.com | randomly generated and should therefore
Zurb...@aol.com | not be ascribed to any sentient entity...
82 FT500 Ascot | things that go "thump" in the night
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Paul Nesbitt
I always reinforce my ABS parts with glass cloth (when I can't find
fiberglass replacements). I use PVC cement, like you would use to glue
together PVC water pipe. The stuff is cheap and easy and comes with
it's own applicator. Just lay in the fiberglass cloth. Brush the
cement on the cloth (making sure it soaks through), and let dry. It
doesn't take much, and make sure you don't put so much on it puddles. I
can actually melt the ABS if you use way too much.
Paul Nesbitt
Paul Goelz
<ju...@NOSPAMnortel.com> wrote:
>Funny you should ask. I just now finished laying up some carbon fiber
>tape & resin to reinforce a crash damage repair on an ABS fuse. I admit
>that I've never tried glass, but carbon seems very promising from a
>practice piece I did.
>
>G'luck.
I recently finished the cowl for my Sig 1/6 scale Cub, andit was my
first forray into ABS. Sig recommended that I simply use CA as the
adhesive, and supplied some ABS strips to reinforce the center seam.
I was skeptical about using CA (still don't really trust the stuff)
but I tried it on a scrap piece. Turns out that as far as I can tell,
the joint is as strong as the ABS, since the CA forms a solvent bond
as well as the regular hardening type of glue bond.
I used scraps of ABS to reinforce sharp cutout corners and screw
holes, and so far, it is holding up. I have to really stretch and
bend it to get it on and off, and the joints are solid.
So my vote would be to reinforce with ABS and CA. It's easy and
strong.
Paul Goelz
Rochester Hills, MI
Forget my Email address. Tired of spam!
John Hawkins
<p.d.n...@boeing.com> wrote:
>Ted,
>
>I always reinforce my ABS parts with glass cloth (when I can't find
>fiberglass replacements). I use PVC cement, like you would use to glue
>together PVC water pipe. The stuff is cheap and easy and comes with
>it's own applicator. Just lay in the fiberglass cloth. Brush the
>cement on the cloth (making sure it soaks through), and let dry. It
>doesn't take much, and make sure you don't put so much on it puddles. I
>can actually melt the ABS if you use way too much.
Just a note to say that all PVC cements may not work on ABS.
I think it depends on their formulation. There is a transition cement
meant to solvent weld PVC to ABS but ABS pipe joints welded with PVC
cement generally yield an ineffective bond.
John Hawkins - From Canada's Atlantic Coast
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