Presto hardeners are suitable for all types of polyester putty. It is a benzoyl peroxide paste that is self-dyeing.

Quality and properties:

• Red: 50% benzoyl peroxide paste
• Serves as a catalyst for the polymerization of unsaturated polyester resins, especially Presto polyester filler and Presto polyester resin
• Nearly odourless
• Contains special plasticizers for homogeneous masses
• Guarantees increased safety in the storage and use of peroxide
• Self-dyeing

Physical and chemical data:

• Basis: Benzoyl peroxide
• Colour: Red
• Appearance: Creamy pasty
• Odour: Almost neutral
• Temperature resistance: After mixing with filler or resin, refer to the data sheet of the corresponding filler or resin product
• Application temperature: +5°C - +30°C, optimum results at room temperature
• Shelf life/storage: 2 years with proper storage (10°C - 25°C, relative humidity of max. 60%)
• Store away from light. Keep away from heat sources, rust, copper, or other metallic mixtures.