boat needs the two front sections doing - these used to be blue as norm, and ideas as to a good way of doing this product wise a freind suggested a some sort of sand textured paint?
In the past my boat deck was painted with Protectakote, it certainly works very well though it is not cheap. You can get it on eBay http://www.ebay.co.uk/itm/200348384863?
Protectakote is bomb proof once applied but bear in mind you will be stuck with it! I've never encountered a surface paint or preparation as tough or durable. The texture can be a bit sharp but you can paint over it in the future. You'll not have to replace the non slip element again!