Addition-Cure Silicone Rubber for Visual Display & Mannequin

Product Overview

Hong Ye HY-E635 is a 35 Shore A addition-curing liquid silicone rubber engineered specifically for the visual display and mannequin manufacturing industry. In retail environments, window displays, museum exhibits, and fashion showrooms, the quality of display props and mannequins directly influences brand perception and customer engagement. HY-E635 delivers the precision, durability, and surface fidelity that professional display manufacturers demand.

Built on a platinum-catalyzed hydrosilylation system, HY-E635 cures without releasing volatile by-products, achieving shrinkage below 0.1% and a tear strength of ≥25 kN/m. At 35 Shore A, it strikes an optimal balance for display mold making — firm enough to support large, heavy mannequin forms without sagging, yet sufficiently flexible to release complex undercuts such as fingers, facial features, and clothing folds. The translucent formulation allows visual inspection of bubble entrapment during pouring, and the dual mix-ratio option (1:1 or 10:1 by weight) accommodates both large-format pour-in-place molds and fast-turnaround small-batch work.

Manufactured by Shenzhen Hong Ye Jie Technology Co., Ltd., a silicone specialist with 25+ years of experience and exports to 138+ countries, HY-E635 is fully certified to ISO 9001, FDA, REACH, RoHS, UL, and CE standards — ensuring compliance for international display brands and retail groups.

Key Advantages

1. High-Definition Surface Reproduction Display mannequins and props require lifelike skin texture, fabric drape details, and precise facial features. HY-E635's flowable consistency (22,000–27,000 cps) penetrates the finest surface details — from simulated skin pores and nail beds to woven fabric texture and jewelry details — reproducing them with sub-0.1 mm fidelity. The translucent cure allows operators to confirm complete pattern coverage before demolding.

2. Structural Stability for Large-Format Molds Full-body mannequins and large display sculptures can weigh 20–50 kg or more when cast in polyurethane foam or resin. At 35 Shore A, HY-E635 provides the rigidity to support these heavy forms without deformation, ensuring that every cast piece maintains the exact posture and proportions of the master pattern. Unlike softer grades, HY-E635 molds resist "creep" — the gradual deformation that occurs when soft silicone molds are stored under their own weight between production runs.

3. Extended Mold Life for High-Volume Production Visual display manufacturers often produce hundreds of identical mannequins or props for national or international retail rollouts. With ≥25 kN/m tear strength and ≥6.5 MPa tensile strength, HY-E635 molds survive 800–1,200 casting cycles — even when demolding complex forms with articulated fingers, extended limbs, and detailed facial features. This translates directly into lower per-unit tooling cost and fewer production interruptions.

4. Near-Zero Shrinkage for Consistent Assembly Mannequins are typically produced in segmented components (head, torso, arms, legs) that are assembled after casting. If each segment shrinks differently, joints misalign and assembly becomes difficult. HY-E635's ≤0.1% shrinkage ensures that all segments match perfectly, reducing fitting time and improving the overall quality of the finished mannequin.

5. Compatibility with Polyurethane Foam Most commercial mannequins and display props are produced from rigid or flexible polyurethane foam, which generates exothermic heat during cure and can be chemically aggressive. HY-E635 is inherently resistant to polyurethane systems, maintaining release properties and mechanical integrity through repeated foam pours. The -60°C to +200°C service range covers both the exothermic cure of foam and the cold storage of molds between production runs.

6. Dual Mix Ratio for Production Flexibility

• 1:1 ratio (Part A:B): 45–60 minute pot life — ideal for full-body mannequin molds and large display sculptures requiring time for careful pouring, degassing, and brush application to complex surfaces.
• 10:1 ratio (Part A:B): Faster cure — suitable for small props, hand molds, and rapid prototyping of new display designs.

7. Custom Color and Formulation Options While the standard product is translucent, HY-E635 can be pigmented to any color — allowing manufacturers to color-code molds by product line, size, or production batch. Hardness, viscosity, and pot life can also be customized for specialized display applications.

Technical Specifications

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Operating Instructions

Step 1: Master Pattern Preparation Ensure the master mannequin or display prop pattern is clean, dry, and free of contaminants that can poison platinum catalyst (sulfur, tin, amines, lead, latex). For clay or oil-based sculpts, apply a compatible barrier sealant. Clean the surface with isopropyl alcohol and allow to dry fully.

Step 2: Mold Framing and Parting Line Setup Large mannequin molds are typically produced in 2–4 segments. Establish parting lines along the least visible contours (e.g., center-back of torso, underside of arms). Build containment walls using foam board or wood, leaving 15–25 mm clearance for silicone wall thickness. Insert registration keys (cones or notches) at 15–20 cm intervals along parting lines to ensure precise alignment of mold segments.

Step 3: Release Agent Application Apply a thin, even coat of platinum-compatible release agent to the entire pattern surface and mold walls. Avoid over-application, which can cause surface defects. Allow 10–15 minutes for the release agent to flash off before silicone application.

Step 4: Weighing and Mixing Calculate required silicone volume (pattern surface area × wall thickness × 1.2 safety factor). Weigh Part A and Part B at the selected ratio. Mix slowly in one direction for 2–3 minutes, scraping container sides and bottom to ensure complete homogenization.

Step 5: Vacuum Degassing Degas at -0.095 MPa for 2–3 minutes. For large mannequin molds requiring several kilograms of silicone, mix and degas in batches to avoid overflow and to maintain sufficient pot life.

Step 6: Brush Coat and Build-Up Apply a thin first coat (1 mm) of degassed silicone to the pattern using a soft brush, working carefully into facial features, fingers, toes, and texture details. Allow this coat to tack up (20–30 minutes), then apply 2–3 additional coats to build a total wall thickness of 4–6 mm. For large mannequin molds, embed a layer of fiberglass cloth in the second coat for added tear resistance.

Step 7: Mother Mold (Support Shell) Once the silicone is fully cured (4–6 hours at 25°C), apply a rigid mother mold using fiberglass and resin, or plaster bandages. The mother mold should follow the silicone contour closely and include reinforcement ribs for large sections. This support shell prevents the flexible silicone from deforming under the weight of casting materials.

Step 8: Demold and Segment Separation Remove the mother mold, then carefully peel the silicone from the pattern. Start from parting line edges and work gradually toward complex features. For fingers and facial details, use compressed air to gently separate the silicone from undercuts.

Step 9: Post-Cure and Production Allow the mold to post-cure for 12–24 hours before first production use. Clean with water, dry thoroughly, and apply release agent (for PU foam or resin casting) before each pour. Store molds on a support form or in a flat position to prevent deformation.

Typical Applications

• Fashion Mannequins — Full-body display mannequins, head forms, dress forms, tailor dummies, and lingerie display forms
• Retail Window Displays — Branded props, product display stands, themed window sculptures, and seasonal display elements
• Museum & Exhibition Figures — Historical figure replicas, anatomical models, scientific exhibit displays, and diorama figures
• Entertainment & Theme Parks — Character statues, walk-around prop molds, attraction theming elements, and photo-op figures
• Medical & Anatomical Models — Anatomy teaching models, prosthetic display forms, and medical training simulators
• Commercial Signage & 3D Logos — Raised letter molds, 3D brand logo reproduction, and point-of-sale display units

Certifications

• ISO 9001:2008 Quality Management System
• FDA Food Contact Material Compliance (21 CFR)
• REACH EU Chemicals Registration
• RoHS Restriction of Hazardous Substances
• UL Safety Recognition
• CE European Conformity

Packaging, MOQ & Logistics

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• MOQ: 2 kg (sample and trial orders accepted)
• Lead Time: 3–7 working days (stock); 10–15 days (custom color/hardness)
• Shipping: Non-hazardous cargo; sea freight, air freight, and express (DHL / FedEx / UPS) worldwide
• Payment: T/T, L/C, Western Union, Alibaba Trade Assurance
• Customization: Color, hardness, viscosity, and pot life tailored to specifications

About Hong Ye Silicone

Shenzhen Hong Ye Jie Technology Co., Ltd., established in 1998, is a national high-tech enterprise specializing in silicone R&D, manufacturing, and global distribution. Our 6,000 m² modern facility produces 220+ tons monthly, serving visual display, retail, museum, entertainment, and industrial customers in 138+ countries.

We understand that display manufacturers face unique challenges — seasonal demand spikes, tight project deadlines, and the need for consistent quality across large production runs. Hong Ye provides not just silicone material, but complete technical support including formulation advice, mold design consultation, and on-site process optimization for display manufacturing clients.