Differences Between Platinum Curing and Peroxide Curing in Silicone Products

The performance, safety, and application area of silicone products are directly related not only to Shore A hardness or design, but also to the curing (vulcanization) method used. The two most common methods are platinum cure and peroxide cure systems. However, many users and buyers are unaware of the difference between these two methods.

What is Platinum Cure Silicone?

Platinum curing is an advanced curing method in which silicone is cross-linked using a platinum catalyst . This method ensures that the silicone is of high purity , odorless , and free of residue .

The main advantages of platinum-cured silicone are:

• It leaves no taste or smell.

• It ensures high purity and hygiene.

• Suitable for food and medical applications.

• It offers long-lasting and stable performance.

• It has high resistance to yellowing and aging.

For these reasons, platinum-cured silicones are preferred for food contact products , baby products , consumer silicone applications , and other applications requiring high quality .

What is Peroxide Cure Silicone?

Peroxide curing is based on curing silicone with organic peroxides . It is a more traditional and cost-effective method, but volatile byproducts can form after curing.

Properties of peroxide-cured silicone:

• Suitable for industrial applications.

• Provides high temperature resistance.

• It is more economical in terms of cost.

• There is a risk of residual taste and smell.

• Its use is limited in food and medical applications. Post-production curing is crucial. If not done properly, the product will not be food-safe and will fail the necessary tests.

  
  

Why is the Cure Method Important?

The curing method is a decisive factor in determining the odor , taste , durability , hygiene , and lifespan of a silicone product. Two silicone products that appear similar can perform completely differently due to different curing systems.

Silicone products manufactured using the correct curing method offer a more reliable , healthier , and longer-lasting solution in real-world usage conditions.