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Waterproof rating IP67 is a relatively high level, and the previous selection of the organic silicone potting gel must be selected. It uses the fed-forming system potty glue, under conventional potting, the waterproof level is generally IP65 or IP66, I want to increase to IP67, The process is required to increase or add waterproof assist in the process. The condensation type system potty is selected, and the IP67 can be reached under conventional potting. So before the selection, we must consult a professional to walk less.