clive, i'm down the road from you about 6 miles in slough, and I go to a place this side of reading called Rosemore international...Prochem reacon that they would be closer to me...and indeed prochem in chessington is a pig of a place to drive to.
If youre in ruislip, then M4 J8/9 ond up the A4 would be the quickest route. Takes me 20 mins to get there. There is another place I know of in Sunbury called Ocean Corperate Hygeine, also a pig to drive to....Depends if its just the Chemicals your after clive...I find reading a straight drive, and easy to find...if your interested maybe you could call and I can give you straight forward directions to it....regards....scott