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This won't turn yellow. Any silicone will turn yellow
If you use it on a sticks and bricks thats painted
with latex. It does ger dirty.hit it with a shot of
Simple green when you wash your rv. It'll return
Nice and clean. And clear!
I used 100% silicone. the thing is use electrical tape on each side of the seam then working very quickly push the caulk into the seam so its smooth . Silicon skins very quickly which is why it has to be worked quickly. I usually have a helper install the caulk and i finish right behind. 15 minutes or so pull the tape off in a way that causes the tape to shear the edge. I cut out what i can before application.
My go to caulk-sealant is polyurethane based but i like the silicon for the joints.
Another spot to keep an eye on is the joint over the shades.