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Re: silicone spray and rubber?



removed the control arms tonight.  the rubber is soft and well adhered.  
while maintaining the bushing twisted/under tension I sprayed some of the 
infamous NAPA SILOO Silicone Spray and watched the rubber tear in front 
of my very eyes!  the result was instant.  so much for silicone spray for 
me!

All the best,

Phil, husband to Angela!

> > Angela Dupin wrote: > > 
> > tonight I sprayed my lower control arm inner bushings that had minor
> > surface cracks with silicone spray from NAPA.  one minute later the minor
> > surface cracks had become massive failure with gapping tear.  what is
> > going on?  I was following the advise of the list in trying to prolong
> > rubber life.  Could one of the learned ones provide an explanation....please!
> Mistake #1.....using anything oil based from NAPA....we lost a $3500
> gearbox in the MR2 using their gearoil that had antifreeze sediment in
> it.....they tried to tell me the engine had an anti-freeze leak to the
> gearbox and prefaced that statement with HONEY!!!!!  Needless to
> say.....they and we had a big go around resulting in many freebies at
> the parts store for a while.....turns out there was another failure that
> accompanied the problem so we didn't pursue too far.....but
> anti-freeze????
> 
> There may have been something on the rubber that reacted to the
> silicone....are you sure it was silicone and not brake clean or
> something like that?
>