Quote:
Originally Posted by Bnrc73
...I was always told not to use silicone on my RV The reason being that silicone will not seal on itself. If you ever have to repair the spot again ever bit of the old silicone must be removed before the new will stick.... JMI
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That's not always true. When I talked to GE about their silicone not curing if past the expiration date, I asked if their silicone would stick to it's self. The bottom line is that some will and some won't. If you are going to put new silicone over old, call who ever makes and ask if it will cure on top of the old. My information is for GE only.