Well I've had a reply from Bose and I cannot believe there response. It's as follows:-
Dear Len
Thank you for your enquiry. I posed the question to one of my colleagues who has in depth knowledge of the 802s from when they were first introduced, and his answer was that he has often seen 802s painted/sprayed with common emulsion paint, which seems to work fine.
I hope that helps.
Kind regards
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.