Brushed the whole thing with resin (2 coats to be exact)...
Cut out pieces of fibreglass cloth...
..and applied them to the underside of the helmet, then applied more resin...
When the helmet became really hard, I applied the 2 part bondo or car cement onto the helmet. Started with the visor section...
Still a long way to go...Stay tuned for more WIPs soon...
Cheers!!