Seems I needed to check more
"292 is "structural bonding adhesive sealant"
291 is "adhesive sealant"
290 is "caulking"
You want 291 for sticking the wings on. 292 is fine but not if you ever want to get them off again. It's 290 you want for filling in gaps with a nice finish - it will not aerate like 291 and you'll get a really nice finish. With all 3 products, you can sand with wet or dry paper and paint over if you're really fussy about the finish. Again, with all three, you should ideally use the relevant sikaflex primer, especially if you're sticking to metal.
Colour = Black in 290 and 291. White in all 3.
If you need a supplier contact then please e-mail me or I can send you some up if you prefer.
Stuart "
there are other alternates too.