Slow progress in the helmet build but today after finally getting some tools to crack on with the job I started the filling and sanding process.
On this cast there were quite a few imperfections which needed to be and still need to be ironed out (for want of a better phrase). A few spots around the bottom edges were a little flakey in places so today after some advice from other members I filled the necessary spots with good old Filler usually used for car plastics such and bumpers and wing mirrors that kind of thing.

Good stuff this, goes solid in 8 minutes so it's a kind of a race to get the filler in place once it's been mixed up.

Trying to build out the thin edges here to give it a more solid reinforced feel.

This inner panel to the side of the mohawk was cast a little thin and I'm slightly concerned that come the chroming process it may not hold and warp slightly so I though applying a good layyer of filler behind it should make this more solid and re-inforce any potential piercings which could occur during my noob carlessness.

Here it is drying out, gave it a little longer then the 8 minutes perscribed.
I have started the sanding process using the different grades of grit, this will however need a little more filling over some of the same areas to get my desired finish which as I'm sure you all know is the mind numbing part but an evil necessatie all the same.
More pics to follow