In the production of plastics, rubber, or metal casting, product adhesion to the mold is a common issue that leads to time loss, surface damage, and reduced mold lifespan. Mold release agents were developed as an optimal solution, enabling quick demolding, minimizing surface defects, and improving productivity.

What Is a Mold Release Agent?

A mold release agent is a specialized chemical used in plastic injection molding, rubber molding, and metal casting processes to create a thin separating film between the product and the mold surface.
This film allows the product to be easily released without sticking or deforming during demolding, while also protecting the mold from wear and chemical corrosion.

Common Types of Mold Release Agents:

• Spray type – Convenient, evenly dispersed, and easy to use.

• Liquid type – Suitable for automated production lines.

• Wax or silicone-based type – Ideal for metal or rubber molds.

How Mold Release Agents Work

Mold release agents function by forming a thin, heat-resistant, non-stick layer between the mold and the molded material.
When sprayed or applied onto the mold surface, the solution spreads quickly and creates a coating with the following properties:

• High smoothness, reducing friction between the mold and the product.

• Excellent heat resistance, preventing evaporation or burning at high molding temperatures.

• Chemical neutrality, ensuring no reaction with plastics, rubber, or metals.

As a result, molded products have smooth, glossy, and consistent surfaces, while the mold’s lifespan is extended, and maintenance and cleaning frequency are significantly reduced.

Applications of Mold Release Agents in Industrial Manufacturing

Mold release agents are widely used in various fields such as industrial plastic molding, rubber molding, and precision metal casting. Below are some typical applications:

Plastic Injection Molding Industry

In factories producing plastic components, machine casings, automotive parts, and high-precision plastic products, using mold release spray prevents sticking, reduces surface defects, and saves time during demolding.

Rubber Molding Industry

Rubber materials have high adhesion, which can easily cause mold scratches. Mold release agents help reduce demolding force, minimize damage, and save energy during production.

Metal and Alloy Casting Industry

In aluminum, zinc, or alloy die casting, the process involves high temperatures. Heat-resistant mold release agents prevent flash adhesion, reduce surface oxidation, and enhance production efficiency.

Coating and Composite Industry

Mold release agents are also used in powder coating and composite material molding, helping the mold surface stay clean, smooth, and easy to demold.

Benefits of Using High-Quality Mold Release Sprays

• Increased production efficiency: Shorter demolding time and more molding cycles per shift.

• Reduced mold maintenance costs: Prevents wear, rust, and residue buildup.

• Improved product quality: Smooth, glossy surface with no sticking defects.

• Chemical savings: Small application volume with high efficiency and even distribution.

• Safe and eco-friendly: CFC-free, low odor, and non-corrosive to metal surfaces.