Diethylene glycol methacrylate is also known as cross-linking agent G, colorless transparent liquid. The structure Simple Type ch2=c (CH3) Ccooh2ch2ooc (CH3) C=CH2, the relative molecular weight 198.21, the relative density 1.054, the solidification point one 40~c, the boiling point 97 ℃, the refractive index 1.4522. Flammable, non-toxic, easy to aggregate. Can be used as cross-linking agent.