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924guy · Posted: Mon Oct 27, 2008 9:19 am Post subject: ideason straightening poly...

hey all,

any ideas on how to straighten polyurethane spoilers? I pulled this one off the frankenporsche, pretty beat up. I figure i can mend the tears with an epoxy, but not sure how to go about straightening the deformities..
all i think of so far is running a metal backing on one side, and applying heat to the other?

_________________
Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha

Martijnus · Joined: 29 Dec 2006 Posts: 2019 Location: Netherlands

my first thought would be heat... but I guess you can screw it up quite easily that way.
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment

968rz · Joined: 21 Aug 2006 Posts: 537 Location: S. E. Wisconsin

Heat would be my solution also. But not from a flame use a heat gun and maybe some stiff metal to make braces to hold it while it cools.
_________________
Rick
79 924 coupe Petrol Blue 3spd auto (wife's DD)
93 968 coupe Amazon Green 4spd Tip (my DD)

Vince Ponz · Joined: 02 Nov 2002 Posts: 3581 Location: Florida

Use a hair dryer first. Then a heat gun. Go slowly or you will blister the piece.

Maybe you should mount the valance first to see how much of a curve you have. Then use heat.
_________________
"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock

PORSCHEV · Posted: Tue Oct 28, 2008 1:31 am Post subject:

This is how I have successfully fixed dents and defeats in Poly urathane parts. have some pieces of wood cut that you can clamp the area straight with. Once you have the part ready to be clamped you heat the area FIRST with the hot setting of the heat gun. get it as hot as possible without blistering. Then clamp it straight. Cool it with a water soaked cloth.

You may have to hyper extend the dented area to over come the spring back effect the damaged area with being suffering with.
_________________
1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.

1978-#53 "D" track racer.