{"id":1486,"date":"2026-05-30T21:03:10","date_gmt":"2026-05-30T18:03:10","guid":{"rendered":"https:\/\/cfc.codev-eg.com\/?page_id=1486"},"modified":"2026-06-03T02:04:35","modified_gmt":"2026-06-02T23:04:35","slug":"mould-release-agent","status":"publish","type":"page","link":"https:\/\/cfc.codev-eg.com\/de\/products\/metallurgical-chemicals\/non-ferrous-metal-treatment\/aluminum-treatment\/mould-release-agent\/","title":{"rendered":"Mould release agent"},"content":{"rendered":"\t\t
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Aluminium Treatment \u2014 Mould Release\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Mould Release\nAgent<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Mould release agents for aluminium casting are applied to permanent moulds, gravity-casting dies, and sand cores to form a barrier layer that prevents the solidifying aluminium from bonding metallurgically to the die surface, ensuring clean casting release, protecting the die from erosion and soldering, and maintaining casting surface quality over many production cycles.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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When molten aluminium contacts bare steel or iron at casting temperatures without a release layer, iron-aluminium intermetallic compounds form at the interface and cause the casting to solder \u2014 sticking to the die on ejection and requiring mechanical removal that damages both the casting and the die surface. CFC Egypt's EGYDYE 10 and EGYDYE 88 release agents are sprayed onto the die surface between cycles, where they flash-dry to leave a thin, uniform release and thermal barrier layer. Correct release agent selection and application gives smooth casting surfaces, consistent cycle-to-cycle dimensional control, extended die life, and the ability to run production at the target cycle time without die maintenance stoppages. Both grades are manufactured at our Sadat City plant and supplied to gravity foundries and permanent mould casting operations across the MENA region.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Where Mould Release Agent Is Used\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Release agent is required in every aluminium casting process that uses a permanent metallic die or mould surface \u2014 gravity, low-pressure, and some semi-permanent mould processes.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Gravity Permanent Mould Casting\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Gravity permanent mould (GPM) casting pours molten aluminium directly into a steel die under gravity. The die is opened, the casting ejected, and the cycle repeats \u2014 typically at 2 to 6 cycles per hour depending on casting size and section thickness. Release agent is sprayed between each cycle to maintain the release layer on the die face. A release agent that provides effective release at the die operating temperature, without building up carbonised residue over repeated cycles, is critical for maintaining casting surface quality and die face integrity over a full production campaign.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Low-Pressure Permanent Mould (LPPM) Casting\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Low-pressure casting forces aluminium upward from a pressurised holding furnace into a closed permanent mould \u2014 used extensively for alloy wheels, cylinder heads, and suspension components requiring fine surface detail and controlled directional solidification. Release agent applied to the upper die halves between cycles protects the die cavity surfaces and cores from aluminium adhesion. LPPM tooling is expensive and has long lead times; release agent that minimises die erosion and extends the period between die maintenance operations directly reduces tooling cost per casting.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Sand Core Surfaces in Permanent Mould & HPDC\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Sand cores used in conjunction with permanent moulds and HPDC tools to form internal cavities \u2014 water jackets, oil passages, and hollow sections \u2014 benefit from a release coating on the core surface. A thin release layer applied to the cored surfaces helps the core break out cleanly after solidification, reduces finning at the core-die joint, and prevents mechanical damage to core surfaces during assembly into the die. CFC's EGYDYE grades can be applied to sand core surfaces as well as metallic die faces.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Surface-Critical & Cosmetic Casting Faces\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Aluminium castings with cosmetically visible surfaces \u2014 automotive exterior components, consumer electronics enclosures, architectural fittings \u2014 require a casting surface finish that matches the die cavity face without soldering marks, tearing, or release agent residue. A carefully selected and correctly diluted release agent applied in a consistent spray pattern produces the clean, bright surface finish that meets cosmetic acceptance criteria without post-cast machining or polishing. Surface quality is a direct function of release agent grade selection and application process control.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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CFC Mould Release Agents for Aluminium\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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EGYDYE 10 and EGYDYE 88 \u2014 release agents for aluminium gravity and permanent mould casting, providing clean release, die surface protection, and consistent casting surface quality.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Frequently Asked Questions\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Technical questions on mould release agents for aluminium permanent mould and gravity casting.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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What is soldering in aluminium permanent mould casting and how does release agent prevent it? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Soldering in aluminium casting is the metallurgical bonding of the solidifying aluminium casting to the steel or iron mould surface \u2014 the aluminium does not release cleanly and sticks to the die. Soldering occurs when aluminium is in prolonged contact with a hot steel surface without an adequate release layer, allowing iron-aluminium intermetallic compounds to form at the interface. A properly applied mould release agent provides a thin lubricating and barrier layer that prevents direct metal-to-metal contact, thermally insulates the interface, and lubricates casting ejection \u2014 preventing soldering and allowing consistent clean release over many production cycles.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t
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How is mould release agent applied to aluminium casting dies? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Mould release agent for aluminium gravity and permanent mould casting is typically applied by spray to the die surface between casting cycles, after the previous casting has been ejected and before the next pour. The die must be at the correct operating temperature for the release agent carrier to flash off quickly, leaving the active release layer on the die surface. Application should be even and thin \u2014 excess release agent builds up as carbonised residue and causes surface defects on subsequent castings. Spray pattern, dilution rate, and application frequency are all adjusted to match die temperature, cycle time, and casting geometry.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t
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What is the difference between EGYDYE 10 and EGYDYE 88? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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CFC Egypt manufactures two release agent grades for aluminium casting \u2014 EGYDYE 10 and EGYDYE 88 \u2014 formulated for different casting process conditions. Selection between the grades depends on die temperature, casting alloy, cycle time, and the specific release and surface quality requirements of your production. Contact CFC technical representatives for a product comparison based on your application parameters and to receive trial material for qualification in your process.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t
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Can mould release agent affect the surface quality of aluminium castings? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Yes, mould release agent selection and application directly affect casting surface quality. An insufficiently applied or wrong-grade release agent leads to soldering, tearing, and rough casting surfaces. Excessive release agent, or one that builds up carbonised residue on the die, causes surface roughness, cold marks, and cosmetic rejection of visible casting faces. The correct release agent applied at the correct dilution, temperature, and cycle frequency produces a smooth casting surface that matches the die surface finish, with consistent release and minimal die maintenance frequency.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t