Best adhesive PLA to ABS?

Hello Group,

I'm looking to find the best adhesive to create a strong air tight bond from PLA to ABS.

Given a choice, I would prefer a thick adhesive to help fill in the little voids.

We use a regular contact adhesive available from most hobby shops / general stores.

UHU Por works really well and so does this: http://www.hobbyking.co.uk/hobbyking...mall_20ml.html

The great thing about UHU Por is that it allows some flex so if you drop it, for example, the glue joint won't shatter/fracture

Hope this helps