Weight Per Epoxide equivalent(WPE)value one determines the optimum amount of DDSA or NMA in grams to combine with 100 grams of resin for stoichiometric balance, minimizing unreacted starting materials and producing reproducibly stainable, sectionable embedding blocks. Exact WPE value for each lot of Araldite resin is on the label of each container.
Grade: 732 WPE: 305 - 33 (Weight Per Epoxide equivalent)