Follow WD40 with alcohol (the good stuff) and you'll be OK to glue.
Thanks guys, that helps a lot. I never cleaned up after acetone which I mostly use to clean the gluing surfaces. I will use some denatured alcohol from now on as a second cleaning - and limit the use of WD40.
All men dream, but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity; but the dreamers of the day are dangerous men, for they may act their dreams with open eyes, to make it possible. - Lawrence