Introduction

Although various aspects of the permanent mould casting process have been studied and developed, such as alloy selection, machine automation, etc., little attention has been given to the products and methods for preparing the surfaces of the die. It is often the operator that selects and prepares the coating material, and the final choice is based almost exclusively on practical experience rather than technical and theoretical considerations.

This latest revised and illustrated edition of the Foseco DYCOTE Manual comprises: An analysis of the functions of coating materials, preparation and application methods, and examples of die preparation for the most common castings. The tables with the characteristics of DYCOTE products have been extended, rationalised and now include a new family of DYCOTE’s, the DURA group. This offers extended coating life, to improve productivity.

Functions of DYCOTE

• 1. Control of the metal flow to ensure that it reaches all parts of the die at a sufficient temperature.
• 2. Control of heat transfer to obtain better solidification and ensure proper feeding.
• 3. Easy release to ensure castings do not come out deformed.
• 4. Good surfaces, leading to reduced finishing costs.
• 5. Longer die life, increased productivity and reduced maintenance.