Recently had new windshield installed by “professionals” . Bed area for sealant was throughly cleaned/repaired etc. Now there are several areas that leak at the top of the glass. I did the rear glass myself. Also several leaks. Due to the risk of breakage,if trying to remove again, is there a product that is liquid enough to seal these small areas yet will not just run thru like water? “professionals” blame bed area, rust etc. etc. Not their fault. Any help is appreciated. This is in a 1972 olds cutlass that I am restoring to a old style muscle car. Thanks in advance.