Quote:
Originally Posted by jgwmjw2
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As with all things you have to consider the source. One blog says No, while another says Yes.
Can I apply new silicone atop, or alongside old silicone caulk?
It is recommended that any old silicone is removed. While new, freshly applied silicone can be applied & will bond to old silicone – the bond isn’t as strong as if it were applied to a clean surface.
https://www.everkemproducts.com/reso...q/#appnewonold