2-Methyl-1,3-Propanediol is a branched aliphatic diol. It is a clear, colorless, low-viscosity liquid with two hydroxyl groups, making it reactive and useful in a range of polymer applications.

PTMEG 1000 stands for Polytetramethylene Ether Glycol with a molecular weight of approximately 1000 g/mol. It's a liquid polyether diol widely used in high-performance polyurethane elastomers, spandex fibers, adhesives, sealants, and coatings.