I'm not here to argue with anyone..We all have our pet peeves for certain products,good or bad.Silicone products have a bad rep on RV forums..I don't know if it is from actual experience or going with the tide..Myself,in 50 plus years of taking care of RV's,I have never had a silicone product I chose, not do it's job but that's irrelevant to this thread.
Proper maintenance is easily identified in a pre-buy walk around as I am sure the opp is very well aware of, already owning a fifth wheel.Whatever product that was used regardless of what it is,is better than know maintenance at all.
My recent Lance was well taken care of..Don't much care what any previous owner used in maintaining it as long as it was maintained because once I bought it,I re-did it all my way, to my satisfaction.
Just one trip out in a truck camper on wash boardy roads can break or crack last years seal.Thst's one reason my next camper will be Bigfoot or Northern lite.Truck campers of normal build are just tough to keep sealed properly when used hard in rough places.
Good luck to the opp in finding a good used truck camper!
