Neopentyl Glycol Diglycidyl Ether contains two epoxy groups which can take part in curing reaction of epoxy resin. The Ether has good compressive strength, flexural strength, tensile strength, impact strength. The Ether is supplied as a colourless transparent liquid and has low toxicity and volatality and it is necessary to maintain insulated after use, in order to avoid negative influence arising from moisture absorption. The Neopentyl Glycol Diglycidyl Ether is a colourless transparent liquid.