General-Purpose Fumed Silicone Rubber for Compression Molding — IOTA 91 Series High-Performance Compression Molding Solution-Iota

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News > Dynamic industry > General-Purpose Fumed Silicone Rubber for Compression Molding — IOTA 91 Series High-Performance Compression Molding Solution

General-Purpose Fumed Silicone Rubber for Compression Molding — IOTA 91 Series High-Performance Compression Molding Solution

The IOTA 91 Series general-purpose fumed silicone rubber is a high-performance material specifically designed to meet the diverse needs of compression molding processes. With its balanced physical properties, excellent processability, and outstanding reliability, it is widely applied in the production of consumer goods and industrial components. Through precise formulation design, the series maintains superior operability while satisfying the molding requirements for complex structures, delivering dual benefits in production efficiency and product quality.

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Core Performance Parameters

Hardness Range: Shore A 30 to 80, covering a spectrum from ultra-soft elastomers to high-hardness products, meeting a wide range of mechanical performance requirements for different applications.
Curing System: Utilizes 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane as a crosslinker, achieving medium-temperature rapid vulcanization with excellent efficiency and product stability.
Physical Properties:
- Tear Strength: Up to 30 kN/m, significantly enhancing durability and tear resistance.
- Tensile Strength: 11 MPa, ensuring structural integrity under stress.
- Elongation at Break: Up to 900%, offering superior flexibility to accommodate dynamic deformation.
- Density: 1.08–1.22 g/cm³, balancing lightweight requirements with a desirable tactile feel.
Safety Certification: Complies with LFGB standards for food contact. After dual-stage post-curing at 200°C for 4 hours, it is safe for direct use in kitchenware and tableware applications.

Processing Advantages

Optimized Flowability: Low-viscosity formulation ensures excellent mold filling in complex molds, reducing defects such as short shots and air bubbles.
Excellent Demolding Performance: The addition of efficient release agents allows for smooth demolding, reducing mold wear and post-processing costs.
Color Management: Supports both direct pigment mixing and surface spraying processes, ensuring uniform color distribution and meeting diverse aesthetic requirements.
Efficiency Enhancement: Fast curing significantly shortens production cycles. The broad recommended vulcanization temperature range (150–180°C) adapts well to various compression molding equipment and production capacities.

Typical Applications

Consumer Electronics: Phone cases, earphone covers, wearable device bands, requiring a balance of flexibility and surface aesthetics.
Daily Consumer Goods: Wallet linings, utensil handles, sports protectors, where comfort and durability are equally important.
Industrial Protection: Sealing rings, cushioning pads, cable sleeves, benefiting from excellent aging and environmental resistance.
Medical and Healthcare: Upon additional verification, the material can be extended to low-risk medical device components (subject to biocompatibility compliance).

Packaging and Storage Guidelines

Packaging: Standard 20 kg carton with moisture-proof inner liner to maintain material stability during transportation and storage.
Storage Conditions: Store unopened products in a cool, dry environment (≤30°C); shelf life is 12 months.
Usage Recommendations: It is recommended to use the material within 6 months after opening. If the material is overdue, processing performance can be recovered by extending the mixing time by 5–10 minutes, with less than 5% loss in physical properties.

Technical Support Services

Providing guidance for matching hardness and performance to assist in mold design and process optimization.
Supporting both small batch trial production and mass production to ensure manufacturing stability.
Custom development of special-grade products with flame retardancy, conductivity, or anti-static properties is available (subject to separate evaluation).

The IOTA 91 Series, with its rigorous scientific formulation and wide application adaptability, offers a one-stop solution for compression molding production, achieving an efficient balance between productivity, quality, and cost. It is a highly reliable fundamental material choice for modern manufacturing industries.

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