what year civic? what model?  and which part exactly?

95 civic ex coupe.  the powersteering fluid reservoir. 

so i just checked on the expoy job.  it seems to hold fairly well!  any words of caution before i slap that baby back on tomorrow?  will the fluid do anything to the epoxy?

i was going to suggest plasticweld.

idk what the power steering fluid will do to the epoxy, but if it doesn't work, it will just leak, no big deal.  just don't park on your property

If it's polyethylene I'd try to weld it. Polyolefins weld pretty decently. Use a strip of similar material and a hot air gun (or even an open flame). I'd trust that more than anything that is just sticky.

To find out if its the same material cut off a sliver, ignite it, put it out and take a whiff of the fumes. Polyethylene smells like paraffin candles.

yeah i agree with trying to 'weld' a plastic fragment in place of the hole.  Since that reservoir doesn't hold pressure that probably would get the job done.  Either that or just cough up some dough and get a new one, but whats the fun is that .

well it held. the epoxy did it.  its been a day now and no leaks!