Originally Posted by bruce80

Someone should probably tell the OP how to find the Junkers Lounge after their arrival.. Here we go:

I'm not sure wherer you'll arrive clean or unclean from SIN, but if you'll arrive unclean, you should follow the signage to transit security (not sure whether they are going to check for an onward BP, though) and then down to the main level of the concourse. Should you arrive clean, you'll already be on the main level.
Walk towards exit/baggage reclaim, but under no circumstances leave the clean area. Just as you see the gates to leave the clean area (and have passed by a huge SIXT ad to your right), there will be a few steps leading up to your right, along with signage (easily missed) towards concourse B and the lounge. Walk up the stairs and down the corridor. Once you arrive in concourse B, take the stairs/elevator right across the concourse to the upper floor. The lounge can be found down another small corridor in the corner just next to the security checkpoint, near the top of the stairs you'll use.