Sick on ones?? I don't think they could have worked let alone be fitted, blimey I have never heard of such a thing.
Why, if I may ask do you want a keel band. The bands are usually stainless steel, galve' iron or bronze. Each type copes with certain problems, so it would be handy to know what your particular needs are.
I believe there is a high-tec plastic keel band that can be fitted. Cannot remember what the trade name is but if you contact one of the boat builders - perhaps Arnie at Seahog boats - I am sure you will get a profesional opinion.
When I read about them they sounded OK - but never believe advertising claims.
Surely someone on this forum has first hand experience?
It's just to protect from beach landings, possible damage if I ever use nylon type rollers, (which I have sitting in my garage), and the very occasional scrape on a rock.
The stick on ones weren't that expensive, if my memory serves me, and would seem worth it for the extra protection.
I have a s/s one on my Warrior.I had it put on when I bought the boat 5 years ago and it has been money well spent, as I launch and retrieve on slipways so no worries about grounding coming back in!!..
I have fitted nylon rollers to my trailer as said keel band chewed the rubber ones!!!!.......However launching and retrieving now so much easier with them on,goes on and off like a dream!!!!!......
One of our club members used a nylon/plastic keel band and used stikaflex to stick it to the keel. A couple of screws were used only around the bow area to hold the shape.
Worked a treat, you have to make sure the keel is free from grease and totaly clean.