Thanks Master. Yes, the seats were toast. I wasn't worried about long term since my client will replace them soon. Get it looking good for the summer is all he wanted as far as the seats were concerned.
Ok guys, Haven't really had much time to edit and cull through photos or do a real write up.
Products and equipment used:
Duragloss 541 cleaner/mildew buster
Pressure Pro Clearly Pink (hydro sulfuric acid diluted 20:1 for rust stain removal)
Marine 31 Gel Coat heavy cut (Makita rotary machine...