Application：

SPH is a high-melting powder compound prepared from the reaction of organic acids with hydrazine. It can be used as a latent curing agent for epoxy resins (EP). The coating film of powder coating prepared with EP/SPH as adhesive system has very good flexibility, water resistance, weather resistance, corrosion resistance, insulation and decorative ability. At home and abroad, it is an indispensable latent curing agent, especially in the manufacture of excellent high-temperature fast solid heavy duty powders and in the fields of petroleum pipelines, aerospace, aviation oil, etc. It has very ideal effect in increasing strength of epoxy powder and FRP products.