For sure...I'm thinking more of using it to get rid of the hull crud after three weeks on the water during the summer. With the boat on it's trailer some of the stuff is hard to reach. Steaming around the rollers might work...
I'm careful around the tubes & console for obvious reasons.
I've always used TFR, simply because I have it to hand, I don't know if there's a better product available, but TFR works & it's cheap. I've used it on 3 boats so far & non of 'em have fallen apart (well not through using TFR anyway)
The best one I have ever used on Hypalon for a good deep clean is Rib Revive. I do a couple of feet square are at a time and rub it well in with circular motion with a soft cloth (gloves on of course) After about 5 mins I put a little water on it and give it a good rub in again. The second time with the water in seems to remove the worst of the dirt.
Never letting it dry in and rinsing really well is crucial. You get a bit of colour come off on the cloth but thats normal.
For a general clean where the boat is dirty but not absolutely bogging I use TFR in the same manner as above but the biodegradable stuff isnt as good as the old fashioned take your skin off used to be. I dont seem to be able to get that any more.