DO IT YOURSELF: Big or small, you can DIY it with J-B. It will not shrink or crack, resists weathering and is sensor safe.
J-B Weld 31914 Red High Temperature RTV Silicone Gasket Maker 10.3 oz,
J-B Weld 31914 Red RTV Silicone Gasket Maker High Temp Sealant 10.3 oz
JB WELD PermaLock RED Threadlocker 6ml
Temperature RTV Silicone Gasket Maker Sealant 10.3 oz Red J B Weld 31914
2 packs JB Weld 8280 Weld Welding Compound Professional size Cold Weld
JB Weld Cold Weld Steel Reinforced Epoxy for Metal Repair 5 oz Tubes 4 Hr Set