If there was glass cloth under the teak.But if you vac bag the teak it will infuse with resin and fill the poors in the wood unless you used minimal vac preasure. Something I have thought about but never got around to doing. I think useing minimal vac preasure would give the best results.
i know about the oilyness (if thats a word) and have spoken to a composites supplier about it...he said he has just the glue for it...comes at a price...but is used by one of his customers to glue teak planking to the outside of a glassfibre hull...so it should stick...
what i do if i want to vacbag veneer to a surface without the resin seeping through is let he resin sit for a while on the surface to glue to till it gels a bit and then add the veneer...i am afraid of bonding issues to be honest and haven't done this on anything that takes a beating...although it seems to work reasonably well...i guess i should do some bonding tests to see what the effect is of waiting before 'clamping'
i have thought about waxing one side thoroughly, then applying minimal resin...preferably thick stuff...to the other....aplying generous resin to the substrate...waiting a bit again for that gelling to start...but less then i normally would...and then vacbagging...
i used some teak on my first HWS - polyester resin was a nightmare to bond onto the teak, it just wouldn't cure - i'm sure it wasn't a mix problem as it cured on planks next to it (parana pine). Resin Research epoxy worked perfectly first time - wish i'd read WoodOgres comment ths time last year, it would have saved me a heap of time!