Greater molecular pounds diglycidyl ethers (n ≥ 1) are shaped from the reaction with the bisphenol A diglycidyl ether formed with additional bisphenol A, this is known as prepolymerization: Hardeners which demonstrate only lower or constrained reactivity at ambient temperature, but which respond with epoxy resins at elevated temperature are https://www.propanraya.com/id/produk/epoxy-fast-dry