Two-part resins give materials superior mechanical protection and chemical properties and better durability. They comprise a mixture of two components, a resin and a hardener, which are kept in separate packs or compartments until the product is mixed. The pre-defined mix ratios must be respected.
Two-part resins can be used as encapsulation resins or as mould-release resins and provide optimal protection. Epoxide, polyurethane or silicone formulations are often used to coat a winding which has already been varnished to provide additional protection, and are more commonly used to protect electronic components and circuits.