PlatSil Gel-10 – Platinum-Cure Silicone Gel for Mold Making & Life Casting

Premium Platinum-Cure Silicone Gel for Professional Applications

PlatSil Gel-10 is a versatile, platinum-cured silicone gel from Polytek Development Corp. with a Shore A10 hardness — firmer than Gel-OO, yet still extremely flexible. With a simple 1A:1B mix ratio (by weight or volume) and a demould time of just 30 minutes, this system is ideally suited to professional mould making, life casting and theatrical prosthetics.

Key Benefits

• Certified skin safe: Polytek has this product independently assessed as skin safe, in accordance with FHSA (16 CFR 1500), LHAMA (16 CFR 1500.14), ASTM D4236 and Sections 201(s) and 409 of the Federal Food, Drug, and Cosmetic Act.
• Fast demould: 30 minutes demould time at 73°F for efficient production and workshops.
• Ultra-realistic tissue feel: Combine with PlatSil Deadener LV for lifelike prosthetics without oil bleed.
• Adjustable working time: Part X Accelerator and Part R Retarder give full control over gel and cure speed.
• High mechanical strength: 970% elongation, 228 psi tensile strength and 80 pli tear strength for durable, flexible moulds.
• Broad accessory ecosystem: Compatible with PlatThix (thickener), SiliColors (pigments), Part H Hardener (up to Shore A40) and Silicone Fluid 50 cSt.

Typical Applications

• Mould making of industrial models in wood, plaster and plastic
• Life casting of hands, feet and faces for art and special effects
• Theatrical and film prosthetics with direct skin adhesion
• SFX make-up and simulated skin/tissue for film and television
• Prototyping of flexible parts in product design and engineering
• Educational and artistic sculpture moulds

Technical Characteristics

PlatSil Gel-10 is mixed in a 1A:1B ratio by weight or volume, with a pour time of 6 minutes and a demould time of 30 minutes at 73°F. Shore hardness: A10. Viscosity: 15,000 cP. Cured colour: milky white. Specific gravity: 1.1. Store at 15–32°C in unopened original packaging; use within six months. Source: Polytek Technical Bulletin PlatSil® Silicone Gels, V4 (06-02-2024).

Food contact

Polytek states for PlatSil Gel-10: "tested by an independent laboratory and was found to comply with 21 CFR 177.2600 (as published in the Code of Federal Regulations) for rubber articles intended for repeated use food contact surfaces when accurately measured, thoroughly mixed, and fully cured." This concerns a repeated-use food contact surface — that is, the mould itself.

Read the conditions alongside it. The statement applies only when the material is accurately measured, thoroughly mixed and fully cured. Any addition — Deadener, Part H Hardener, PlatThix, Part R, Part X or pigment — takes the mixture outside the tested composition.

21 CFR 177.2600 is US legislation. For this product there is no declaration of compliance under Regulation (EC) 1935/2004, no assessment against BfR Recommendation XV and no § 31 LFGB report. Polytek does not name the laboratory or the test date, and the statement appears on Polytek's product page and in its catalogue, not in the technical bulletin. If you need substantiation for the European market, look at Silicone Culinary (tested by TÜV Rheinland in accordance with § 31 LFGB, result Pass).

Polytek Development Corp. is an American specialist in polyurethane and silicone systems for professional mould making, life casting and industrial applications, with over 40 years of experience in the sector.

Professional Support

Do you have technical questions about the right formulation, additives or processing conditions for your specific application? Our team is ready with product-specific advice based on your project. Contact us for personal guidance.