First, Permatex makes good products.  This is no different.  There are some products labeled similarly but do not contain true silicone in the same way this product does.This is useful for lubricating all sorts of things.  From moving parts you wish to keep lubricated such as door slides and hinges and other hardware such as that.  It will also help to prevent oxidation (rust) from occurring.  It is also very good for applying to plastic and rubber to both keep them with a film of lubricant which you might want on something such as "rubber" weatherstripping on the sides of car windows.  It is also good for for using to keep rubber, vinyl and most plastic parts from drying out.This is a product that goes on wet and while it will dry it will not completely evaporate but leave a protective film of silicone which is a good thing.This is not like products such as penetrating oils like Liquid Wrench or WD-40.  Those are good for their purpose but they are lighter lubricants made for penetrating and not leaving the same sort of film as this silicone spray.There are some items that could also be well lubricated with spray lithium grease but this has the advantage of being clear so it does not remain white so it is nice in that sense.The price here right now is significantly more expensive than the local auto parts store.  I would check prices before purchasing.  I love Amazon and sometimes they have the best price and certainly some of the best customer serviceyou will ever find but you do need to check prices as sometimes prices can be much higher (or lower) from place to place.As an aside, contrary to one persons review, this product is NOT an electrical conductor but just the opposite it is an insulator.It is contained in dielectric grease so do not get it on contacts of electronic products!  It can be used carefully on sockets for electronic connections to be used such as dielectric grease but do not get it on the actual metal contact parts themselves.  I tried to post a link to Wiki about silicone that explains this but Amazon does not allow which is why you see the dots in brackets instead.[...]There are other silicone sprays out there, some are also good, some are not.  Be careful to ensure you get what you are after.That is one thing good about Permatex products, they are a trustworthy company and their products are usually one of the best options for their purposes and they have a huge variety of products for very specific uses, most often in automotive products.  So this is a trustworthy brand that you know what you are getting is as described on the label and you are getting what you pay for.  Just make sure you pay the most reasonable price you can find.