Introduction to Liquid Silicone Rubber (LSR)

Liquid Silicone Rubber (LSR) is a high-performance elastomer widely used in the production of medical and foot care products. Due to its flexibility, durability, and skin-friendly characteristics, LSR has become a popular material in products that require comfort and long-term contact with the skin.

In the foot care industry, liquid silicone is often used to manufacture products such as:

• Toe separators

• Bunion correctors

• Gel toe protectors

• Heel cushions

• Metatarsal pads

• Orthopedic foot supports

These products require soft, durable materials that can provide reliable support while maintaining comfort during daily use.

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LSR Material Structure and Mixing Process

Liquid silicone rubber is typically supplied in two components: Part A and Part B.

During production, the two materials are mixed at a 1:1 ratio using precision mixing equipment. After mixing, the material undergoes vacuum degassing, which removes air bubbles from the mixture.

This process ensures that the final silicone product has:

• Smooth surface quality

• Stable internal structure

• Consistent elasticity and strength

Vacuum treatment is an important step in ensuring the quality of finished silicone products.

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Adjustable Hardness for Different Applications

One of the major advantages of liquid silicone rubber is its adjustable hardness range.

The material hardness can typically be controlled between:

Shore A0 – Shore A60

By adjusting the formulation and additives, manufacturers can produce materials suitable for different product requirements.

For example:

• Ultra-soft LSR (A0–A10) → Toe separators and toe protectors

• Medium-soft LSR (A10–A30) → Bunion correctors

• Medium firmness LSR (A30–A60) → Heel cushions and orthopedic supports

This flexibility allows manufacturers to design foot care products with the ideal balance of comfort and support.

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High-Quality Imported Silicone Raw Materials

The quality of raw materials plays a key role in determining the performance of silicone products.

Our production uses high-quality imported liquid silicone materials from Japan, which provide stable physical properties and consistent performance during mass production.

Advantages of high-quality silicone materials include:

• Excellent elasticity and softness

• Long-term durability

• Skin-friendly and non-toxic

• Stable performance in manufacturing

These characteristics make liquid silicone ideal for medical and personal care products.

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Professional Formula Adjustment

In addition to raw material quality, the final performance of silicone products depends on professional formulation and processing experience.

Our technical team carefully adjusts silicone formulations to meet different product requirements.

Key adjustment parameters include:

• Hardness control

• Elasticity optimization

• Transparency and surface texture

• Durability and tear resistance

Through these adjustments, manufacturers can produce silicone products that match specific market needs.

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Applications of Liquid Silicone in Foot Care Products

Liquid silicone rubber is widely used in many types of foot care and orthopedic products.

Common applications include:

• Toe separators

• Bunion correctors

• Gel toe protectors

• Heel cushions

• Metatarsal pads

• Orthopedic foot pads

Because of its softness, flexibility, and skin compatibility, liquid silicone has become one of the most important materials in the foot care product industry.

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📊 Liquid Silicone Rubber Physical Properties (Reference)

Typical physical properties of LSR materials include:

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📄 Safety Information (MSDS Overview)

Liquid silicone rubber is generally considered safe and stable when used in consumer products.

Typical MSDS characteristics include:

Chemical Stability
Stable under normal storage and processing conditions.

Toxicity
Non-toxic and suitable for personal care applications.

Skin Contact
Safe for long-term skin contact and widely used in medical and personal care products.

Environmental Safety
Silicone materials are environmentally stable and widely used in healthcare industries.

For complete safety data, customers can refer to the official MSDS documents provided by silicone material suppliers.

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🏭 About Our Manufacturing Capability

As a professional foot care product manufacturer, we specialize in producing orthopedic and comfort products using advanced materials such as liquid silicone and SEBS elastomers.

Our main product categories include:

• Toe separators

• Bunion correctors

• Toe protectors

• Heel cushions

• Metatarsal pads

• Orthopedic insoles

We provide OEM and private label production for global brands, distributors, and e-commerce companies.