Food-Contact Grade HTV Silicone Rubber Compound YKS-8850 - High Elongation Peroxide-Curing Base for Compression Molding
url-slug: food-contact-htv-silicone-rubber-yks-8850
Product Summary
Food-contact grade high consistency silicone rubber (HCR/HTV) base compound, model YKS-8850, developed for compression molding. This peroxide-curing compound offers a balanced combination of 50 Shore A hardness, minimum 700% elongation, and at least 7.0 MPa tensile strength. Supplied without pigment or curing agent, it enables custom color selection and curing system optimization for production flexibility.
This grade is suitable for food-contact applications including bakeware, kitchenware, flexible molds, gaskets, and seals. Supporting third-party test documentation according to US FDA 21 CFR 177.2600 is available upon request, along with TDS, SDS, and COA from our ISO 9001 certified facility.
Key Selling Points
- High Elasticity for Durability: Minimum 700% elongation at break ensures components withstand repeated flexing and deformation without cracking, extending product service life.
- Balanced Mechanical Strength: Tensile strength ≥7.0 MPa and tear strength ≥18 kN/m provide robust performance for demanding food-contact applications like bakeware and molds.
- Consistent Processing: Plasticity of 250-280 and recommended cure at 180°C×5 min with DBPMH (35% active, 1.5% dosage) ensure stable compression molding cycles and repeatable part quality.
- Formulation Flexibility: Supplied without pigment or curing agent, allowing you to tailor color and cure system to specific production needs.
- Food-Contact Compliance Support: Third-party test documentation per US FDA 21 CFR 177.2600 is available on request, supporting qualification for food-contact applications.
- Convenient Packaging: Standard 20 kg carton facilitates handling, storage, and production planning.
Technical Specifications
| Appearance | Milky white to slightly yellow |
| Hardness | 50 ± 3 Shore A (GB/T 531.1-2008) |
| Density | 1.14 ± 0.03 g/cm³ (GB/T 533-2008) |
| Plasticity | 250-280 (GB/T 12828-2006) |
| Tensile strength | ≥ 7.0 MPa (GB/T 528-2009) |
| Elongation at break | ≥ 700% (GB/T 528-2009) |
| Tear strength | ≥ 18 kN/m (GB/T 529-2008, right-angle specimen) |
| Resilience | ≥ 40% (GB/T 1681-2009) |
| Linear shrinkage | 2.7-3.2% (GB/T 1692-2008, molding method) |
| Recommended molding cure | 180°C × 5 minutes |
| Recommended curing agent | DBPMH, 35% active preparation |
| Recommended curing-agent dosage | 1.5% by weight |
| Standard packaging | 20 kg net per carton |
| Recommended storage temperature | ≤ 30°C |
| Shelf life | 6 months in original unopened packaging |
Models and Options
Base model: YKS-8850 (50 Shore A). This compound is supplied without pigment or curing agent, and color and curing systems can be optimized on request. For other hardness grades or custom formulations, contact our team to discuss your specific requirements.
Materials and Structure
High Consistency Silicone Rubber (HCR/HTV) base compound, supplied without pigment or curing agent. The formulation uses premium raw materials and advanced compounding to achieve the specified mechanical and processing properties.
Applications
Food-contact silicone products; bakeware and kitchenware; flexible molds; gaskets and seals; general compression-molded silicone products.
Customization
Yakows supports customized formulations, including hardness adjustments, color matching, and curing system optimization. Our R&D team of 10+ engineers can assist with process optimization. Documents such as TDS, SDS, COA, and third-party test reports can be provided. Minimum order quantity (MOQ) and lead time are available on request.
FAQ
What is the hardness of YKS-8850?
Hardness is 50 ± 3 Shore A per GB/T 531.1-2008.
What is the recommended curing agent and dosage?
DBPMH, 35% active preparation, at 1.5% by weight, with molding cure at 180°C × 5 minutes.
Is this compound FDA compliant?
Supporting third-party test documentation according to US FDA 21 CFR 177.2600 is available upon request.
What is the packaging size?
Standard packaging is 20 kg net per carton.
What is the shelf life?
6 months in the original unopened packaging.
Can I get samples for evaluation?
Yes, contact our sales team at sales@yakows.com to discuss sample availability and documentation.
Can the color and curing agent be customized?
Yes, the compound is supplied without pigment or curing agent, allowing you to select colors and optimize the curing system.
What certifications does Yakows hold?
Our quality management system is ISO 9001 certified. Applicable grades are supported by FDA food-contact compliance documentation, LFGB test reports, and REACH compliance documentation.
Inquiry Information
For pricing, MOQ, and delivery details, please contact Charlotte:
Email: sales@yakows.com | Tel/WhatsApp: +86 13549310838
Address: Tongsha Industrial Park, Dongcheng District, Dongguan City, Guangdong Province, China
Product Images
Image filenames: Food-Contact_HTV_Silicone_Rubber.png, HTV_Silicone_Rubber_Inside_Kneader.png, HTV_Silicone_Rubber_After_Unloading.png, Compression-Molding_Application.png
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