Hi has anyone used this for sealing their grill? I used the 650 degrees rtv red versachem. I'm also using a bottle of black versachem gasket sealer for the for door in going to seal a gasket on. I used the red for putting together my BTMLE charcoal smoker to prevent leakage of air and smoke. I guess I'm wondering if this will stand up to the heat and being a silicone sealant it should be food safe I hope? I really don't want to rip the thing apart and re do it so any info would be great.