Tin Cured Liquid Silicone Rubber for Flowerpot Concrete Molds

Professional Liquid Silicone Manufacturing Experts
Shenzhen Jianghe New Materials Technology Co., Ltd. is a leading developer and manufacturer of high-performance polymer materials, including epoxy resin, PU resin, UV resin, and liquid silicone rubber. As an integrated source factory combining R&D, production, and sales, we operate a 20,000㎡ modern production base in Dongguan, certified with ISO9001 and other international standards. Supported by advanced equipment, a dedicated R&D team, and a strict QC system, we deliver over 25,000 tons of stable, high-quality, and cost-effective products annually to clients in over 100 countries. We specialize in customized formulations and OEM/ODM services, empowering industries from crafts and furniture to electronics and composites with reliable material solutions.

Why Choose This Tin Cured Liquid Silicone?

Highlight 1: Industrial-Grade Service Life
Designed for repetitive production with excellent tear strength, withstands 800-1000 demolding cycles. Ensures long-term mold stability for mass production of plaster or cement components, significantly reducing per-use cost.

Highlight 2: Professional Vacuum Degassing Process
Copy: For industrial-grade flawless molds, use with a vacuum degassing chamber. This crucial step eliminates bubbles introduced during mixing, ensuring dense, pore-free molds for smooth, detailed castings. A key professional step for high-quality replication.

Highlight 3: Built for Construction & Outdoors
Excellent weather, acid/alkali, and aging resistance, specifically for harsh environments like architectural decoration (GRC, cement), outdoor sculptures, garden components. Maintains stable performance under sun and rain.

Highlight 4: High-Viscosity Stability
Offers high-viscosity models up to 27,000 mPa·s, ideal for vertical or complex large-component mold making. Prevents sagging, ensures uniform thickness, and perfectly replicates 3D details like reliefs.

Detailed Technical Specifications

How to Use
1.Precise Weighing: Use a digital scale to accurately weigh components at a strict A : B = 100 : 2 (or 100:3) ratio by weight. Component B (curing agent) is used in very small amounts—accuracy is crucial for successful curing.
2.Initial Mixing: Add Component B to Component A. Mix with a stirrer at low speed, clockwise for 3-5 minutes until the color is completely uniform. Scrape the walls and bottom of the container to avoid unmixed spots.
3.Vacuum Degassing: Pour the mixed silicone into a container placed inside a vacuum degassing chamber. Turn on the vacuum pump and maintain a vacuum of -0.1 MPa for 2-3 minutes, until bubbling stops and the silicone surface settles flat. This is the core step to eliminate bubbles and ensure mold quality.
4.Pouring into Mold: After degassing, promptly and in one go, pour the silicone slowly from the container edge into the prepared master mold. Utilize its good flowability to self-level and fill every detail.
5.Curing: Allow to cure completely at room temperature (25°C) for 4-5 hours before demolding. Avoid vibration or movement. To accelerate, apply mild heat (40-50°C) to reduce time to 2-3 hours.

Precautions for Mold Silicone:
1. Adjust the amount of curing agent based on temperature—reduce it in high temperatures. Excessive curing agent will cause the mold to harden and become brittle; insufficient curing agent will prolong the working time.
2. To prevent changes in mold silicone properties, it is recommended not to add silicone oil.
3. For optimal mold performance, allow the mold to cure for at least 24 hours before use.
4. The curing speed of this product is closely related to ambient temperature. Higher temperatures accelerate curing. Users may adjust the amount of hardener based on ambient temperature to achieve the desired curing speed.

Shelf Life:
Unopened packaging at room temperature (25°C): 12 months. Finished silicone molds can be stored for up to six months without loss of performance.

Storage and Transportation:
1.Mold silicone should be stored at room temperature in a dry, sealed container. Avoid contact with water to prevent deterioration.
2.This product is classified as non-hazardous for transportation.

Applications & Project Gallery

Architectural Decoration Component Molds
Professional architectural silicone mold solutions for GRC components, Roman columns, cornices, railings, facade decoration lines, and other construction molds. Excellent weather resistance withstands outdoor construction environments, ideal for mass production of cement molds and plaster molds.

Sculpture & Artwork Batch Reproduction
Industrial formula designed for sculpture molding silicone, suitable for Buddha statues, figurines, garden sculptures, decorative reliefs, and other artwork molds. High tear strength supports 800-1000 reuse cycles, meeting sculpture mass production needs.

Industrial Plaster Product Production
Cost-effective plaster product mold silicone optimized for mass production of plaster cornices, decorative ornaments, plaster panels, and other plaster molds. Low shrinkage (≤0.3%) ensures dimensional stability, significantly reducing plaster production costs.

Candle Craft Molds
Professional grade candle mold silicone for various shaped candles, aromatherapy candles, decorative candles, and other candle production molds. Good heat resistance withstands candle pouring temperatures, an excellent choice for the candle making industry.

Cement Precast Component Molds
Industrial grade cement mold silicone solutions for cement tiles, cement components, garden paving, and other cement product molds. Excellent alkali resistance with good compatibility to cement materials, extending cement mold service life.

Resin Craft Production Molds
Cost-effective resin mold silicone designed for unsaturated resin crafts, polyester resin products, epoxy resin decorations, and other resin craft molds. High cost-performance ratio suitable for small to medium batch resin product production.

OEM Customization Service
1.Customized formulation: Viscosity, flowability, curing time, hardness, transparency, color, and various functional additives. Can be adjusted according to needs to meet different industry application scenarios.
2.Packaging Customization: Multiple packaging sizes are available to suit your production scale, including 1kg, 5kg, 20kg, 25kg, and 200kg drums. All packaging follows international shipping standards to ensure safety and durability.
3.Private Label: Supports brand customization, including bottle label design, outer packaging printing, and logo labeling, helping brand owners and wholesalers quickly build their own brands and enter the market.
4.Supplies and Kits: Pre-mixed kits (such as resin + pigment + mold + tools, etc.) are provided according to your end product.
5.Color Matching and Functional Additives: Offers color matching services, supporting adjustments for black, red, yellow, and other colors.
6.Sample support: We support sample orders for performance testing before mass production. This ensures compatibility with your process, equipment, and application requirements.
7.Technical consultation and process guidance: Engineers provide one-on-one technical guidance on construction suggestions, curing conditions, mixing ratios, application processes, etc., to help you solve practical problems.

Why Choose Our Customization Services?

1.Fast Response — Initial Technical Proposal Within 72 Hours
Once we receive your requirements, our engineering team will provide an initial formulation direction or technical recommendation within 72 hours. This significantly shortens your R&D cycle and speeds up time-to-market.

2. Cost Advantage — 15–30% Lower Than Trading Companies
As a factory with no middlemen, we offer highly competitive OEM pricing while maintaining strict quality standards. Ideal for distributors, factories, and brand owners seeking stable and scalable supply.

3. Confidentiality Guaranteed — 100% NDA Support, Formulations Never Disclosed
Every custom project can be secured with an NDA. We protect your formulations, data, and intellectual property with strict confidentiality standards and never share them with third parties.

4. End-to-End Control: One-Stop Service from Raw Materials to Delivery
Full in-house control over formulation, production, filling, private labeling, packaging, and logistics ensures consistent quality and stable supply.

5. 17+ Years of Material Manufacturing Expertise
With deep expertise in epoxy resin, PU resin, UV resin, liquid silicone rubber, and gypsum powder, we understand the performance needs of various industries including electronics, crafts, automotive, LED, molds, and flooring.

6.Technical Core: In-House R&D Center and Engineering Team
Experienced application engineers provide one-on-one support in formulation tuning, process optimization, and troubleshooting to ensure optimal performance.

7. Stable Quality — ISO9001 Certified Production
We follow strict quality control standards under ISO9001:2015. Every batch is traceable, stable, and tested to meet your specifications.

8. Fast Sampling & Flexible MOQ
We support rapid sample production and low-MOQ orders, reducing risks for new product launches, distributors, and factory procurement.

9. Brand Empowerment: Complete Private Label and Packaging Customization
Full white-label services including label design, multi-size packaging, and brand logo printing to help you build a professional brand image with ease.

10.Global Delivery: Scalable Production and International Logistics Network
Own large-scale production facilities paired with a mature global logistics network ensure stable output and on-time delivery worldwide.

If You Need Customized Packaging Or Other Specifications, Please Contact Us.

FAQ:

Q1: What Is Tin Cured Liquid Silicone Rubber And How Does It Work?

A: Tin cured liquid silicone rubber is a two-part condensation-cure silicone that vulcanizes at room temperature through a reaction between an organotin catalyst and silanol groups, releasing by-products such as ethanol. This curing method is simple and suitable for large mold making.

Q2: What Are The Key Differences Between Tin Cured And Platinum Cured Silicone?

A: Key differences: ① Curing mechanism: Tin cure is condensation reaction (with by-products); platinum cure is addition reaction (no by-products); ② Shrinkage: Tin cure ≤0.3%, platinum cure ≤0.1%; ③ Food safety: Tin cure generally not food grade; platinum cure is FDA compliant; ④ Cost: Tin cure is more cost-effective for mass production; ⑤Temperature resistance: Platinum cure offers higher heat resistance (up to 250°C).

Q3: Can Tin Cured Silicone Be Customized In Color?

A: Yes, we offer white, transparent, and other custom colors. Hardness, viscosity, and pot life can also be adjusted.

Q4: What Precautions Should Be Taken When Making Architectural Molds?

A: Master pattern must be clean and dry; For complex structures, pour in stages; Add fibers for reinforcement in large molds; Avoid moving the mold during curing.