I have not used it on seals but i bet it would work. My Dad bought a case of it on sale and he used it on everything with no problems. I personally use 303 protectant. Let us know how it works out for you. Thanks
I use a dry silicone spray lube (food grade) made by CRC and sold at Fastenal stores. 'Dry' because a polar solvent base is used which rapidly evaporates after spraying and leaves only the silicone behind. $12 a can, but I figured it's the perfect lube for the slide gaskets and gear racks on the slide where you wouldn't want something that dirt could adhere to.