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Around 1960.

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15y ago

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What part of the pig is antifreeze made out of?

Antifreeze is not made out of any part of the pig. Antifreeze is a combination of chemicals used to keep your engine's liquids from freezing. It works by lowering the freezing point of liquids.


Who made the first fireproof suit?

DuPont made the first fireproof suit in 1960 and it was available on the market in 1967.


What makes antifreeze turn redsome antifreeze is green and some is clear. what is the ingredient that causes it to turn red in color also can you add that ingredient to other antifreezes?

The color of the antifreeze is made that way and no dye is available. There is no reason to color it afterwards. The reason for the different colors these days is because they have made it with different properties to match specific engine manufactuerers needs. Newer engines now take pink or red for example due to blocks and cyl heads being made from different metals and they are also trying to prevent engine failures due to the way earlier coolants had on engine parts. Mixing colors isn't a good idea but that's still up for debate by many people.Go with what the owners manual states.


Are refrigerant and freon the same thing?

Yes and no... Freon is a name trademarked bu DuPont for their line of CFC and HFC refrigerants... so it's not actually Freon unless manufactured by DuPont and marketed as such. Not all refrigerant is made by DuPont, and not all refrigerant is of the HFC or CFC type.


Does every Dupont lighter make ping sound Does every Dupont lighter make ping sound?

According to a specialized dealer only Line 2 and Gatsby Duponts are made to ping.


Who made pan?

Dr. Roy Plunkett invented them in 1938 while working for the DuPont company.


Who Made Nonstick Pans?

Dr. Roy Plunkett invented them in 1938 while working for the DuPont company.


What are kapton films made from?

Kapton film is made from polyimide and is a product that is manufactured by DuPont. It is a product that can remain stable in a wide range of temperatures.


What do you look for to see if a S.T. Dupont is real?

To determine if a S.T. Dupont item is genuine, check for high-quality materials and craftsmanship, as authentic products are made with premium materials and precise detailing. Look for the brand's logo, which should be engraved or printed clearly, without any spelling errors. Additionally, examine the packaging; genuine S.T. Dupont items typically come in well-made boxes with proper branding. Lastly, verify the item's serial number against S.T. Dupont's official records if possible.


What was first made by suspending paraffin in a solution of water and antifreeze?

lava lamp


What are fireproof jackets made out of?

Fireproof fabrics are made of a fabric called Nomex, a registered trademark of DuPont. It is a chemical version of nylon similar to Kevlar.


Who invented the tootbrush?

an emperor in China in 1498, and in 1938 Dupont made one with synthetic materials. ( according to toothbrushes.com)