The amount of small shell on our bottom these days in lower Sydney Harbour is beyond belief.

first used it 2020 it lasted well the first year with very little scrubbing ,2nd year the boat did not move much so it required more scrubbing 3rd year it was used more with 3 monthly scrubing and fist coat was starting to show i could of lasted another year but my anoids and drive oil were due. I redone it 14 months ago and have had to scrap itabout 1 month ago around water line, we have a lot of slime this year from heat and rain ,I am hoping to get over 3 years with careful scrubing. We don't get oyster shell growth up here so i am unsure if it is effective.

The very helpful bloke at Altex explained that VOC = volatile organic content..........guess see here............

www.dcceew.gov.au/sites/default/files/documents/antifouling-framework.pdf

He said Carboline 3000 and Altex no5+ were the same products, and newer and better than Altex no5, and their top performers. He admitted the fouling rate at the moment was a nightmare.