Preparation H has a Petrolatum ( Vasaline) base and is a petroleum product- Generally the chemical makeup of vaslines contain various degrees of paraffin wax. Vasaline is composed of mostly consistant lengths of molecules with no unsatuartion, thus eleminating the oxidation that takes place in lard to form the sweet smell of rancidity.
Lard on the other hand is composed of many unsaturated molecules for which oxygen reacts with, forming orgainc acids that smell to high heaven. Lard can also serve as a flux in soldering lead and copper due to the organic acids.
Vegatable oils may also be useful as some have a high smoke point such as peanut oil. You can make your own coolant by using mobil 1 oil and a emulisifier. Dish soap such as DAWN or IVORY seem to work if you don't have access to emulsifiers specific to the oil. Use 1 ounce oil to 1/2 ounce soap/detergent, stir then dilute 1 ounce per quart of water or less as experiece. To prevent rust, add some sodium Nitrite/Sodium Sulfite Tom
Tom
Lard on the other hand is composed of many unsaturated molecules for which oxygen reacts with, forming orgainc acids that smell to high heaven. Lard can also serve as a flux in soldering lead and copper due to the organic acids.
Vegatable oils may also be useful as some have a high smoke point such as peanut oil. You can make your own coolant by using mobil 1 oil and a emulisifier. Dish soap such as DAWN or IVORY seem to work if you don't have access to emulsifiers specific to the oil. Use 1 ounce oil to 1/2 ounce soap/detergent, stir then dilute 1 ounce per quart of water or less as experiece. To prevent rust, add some sodium Nitrite/Sodium Sulfite Tom
Tom
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