Hi B_S and MF,
Yes I had to use primer on mine as the base metal was that poor that I had to use body filler along with spray putty and then block it all back to solve all the rust pitting etc. Basically I used the same process as when doing Automotive panel repair work, thus why all the pieces now look like brand new and ripple, pit and dent free. The chain case was made up from two cases, one Series 1 and a Series 2 donor as original S1 had most of the bottom missing de to rust and as such try finding a spare replacement..........impossible. Series 2 cases are everywhere due to their feeble fracture riddled chassis being sent to scrap one after the other a few years ago and their remaining parts living on as donors to other machines, while S1 cases always stayed with their more durable chassis' counterparts to re refurbished over and over again.
As far as the issue of half used cans is concerned, I feel it's got nothing to do with the actual nozzle as the blockages seem to occur before before the paint gets up to the top and as such warming the paint up and continually Shake / Mixing it seems to get more out of the can. I've managed to get two cans to empty their full contents via the nozzle, so this may be the key to the issue.
When using in colder conditions I'd strongly suggest that Speedy's idea would be perfect.
Cheers,
BB.
