About Us. Established in 1972 and reconstituted in 1988 POLYCHEM INTERNATIONAL is a family managed business unit. Started with distribution of Bakelite Sheet manufactured by legendary company M/s: Bakelite Hylam Ltd. and subsequently we were appointed distributor by various India’s top ranking Manufacturers of Electrical Insulating materials.

> Choose which conversion page you wish to use. Common Density Conversions A few of the more common density units will be found here. Such as kilogram/liter, pound/gallon, etc. This is a good place to start. Traditional US and UK Density Conversions This page contains just the traditional U.S. and U.K. density conversions.