Insulation papers are a type of material that is used to insulate electrical components and circuits from each other and from their surroundings. These papers are made from a variety of materials including cellulose, cotton, aramid, and synthetic fibers. The primary function of insulation papers is to prevent the flow of electric current between conductive materials. They are used in a variety of applications such as transformers, motors, generators, and other electrical equipment.

There are several different types of insulation papers available, each with its own specific properties and uses. Some of the most common types of insulation papers include:

•  Lamiflex (Class B) Paper: Lamiflex is a Double-layer insulation paper made of Polyester film with an Insulating press paper overlay on the other side. The presence of polyester film gives high dielectric, tensile, and tear strength with good dimensional stability.
•  Laminex Aramid (Class F) Paper: Laminex is a 3-ply composite of aramid insulation paper bonded by high-temperature adhesive with high-quality electrical grade polyester film.
•  Lamifleece: Lamifleece is made of 2 layers of polyester fleece and 1 layer of polyester film. the polyester fleece protects the polyester film against oxidation and hydrolysis.
•  Diamond Dotted Paper (DDP): DDP is made of insulation paper coated with modified (dried) epoxy resin on both sides. The bond strength of epoxy resin is sufficient to prevent the displacement of the winding layers due to short circuit forces.
•  Fish paper: Fish paper is made from vulcanized fiber and is commonly used in low-voltage applications. It is a flexible material that is often used for electrical insulation and gaskets.
•  Nomex paper: Nomex paper is made from aramid fibers and is known for its excellent thermal and electrical insulation properties. It is commonly used in high-temperature applications such as motors, generators, and transformers.