Product Summary
HONG YE SILICONE Silicone for Stone Cement Molding is a professional industrial-grade RTV 2 Silicone Rubber, specially formulated for molding natural stone, cement, concrete and plaster products. Available in Condensation Curing Silicone Mold Rubber and Addition Curing Silicone, it serves as high-quality Mold Making Silicone and liquid silicone, featuring strong alkali resistance, high tensile strength, low shrinkage and excellent fluidity. With good weatherability and easy demolding performance, it can perfectly replicate the texture, grain and carving details of natural stone, suitable for architectural stone components, garden sculptures and cement crafts. It helps global B2B buyers in stone and cement processing industries extend mold service life, improve casting precision and reduce comprehensive production costs.
Product Overview
This specialized Industrial mold silicone rubber is designed to address the core needs of stone and cement molding, with a special anti-alkali formula that can resist the corrosion of cement and concrete, ensuring long-term stable use. It is a two-component flowable liquid product, consisting of Part A (silicone base) and Part B (curing agent), which can be cured at room temperature without the need for additional heating equipment. Its moderate viscosity balances fluidity and stability, enabling it to fully fill the gaps of stone carvings and capture all delicate texture details. Suitable for both pouring and brushing molding methods, it can adapt to small stone crafts, medium-sized garden sculptures and large architectural cement components, providing reliable molding solutions for stone factories, cement product manufacturers, landscape engineering companies and sculpture studios.
Technical Specifications
Product type: RTV 2 Silicone Rubber, mold making silicone, Liquid Mold Silicone, industrial Mold Silicone rubber; Curing systems: Condensation curing (tin-cure), addition curing (platinum-cured); Mixing ratio: Condensation type 100:3, platinum type 1:1/10:1; Hardness range: 20-40 Shore A; Shrinkage rate: ≤0.2% (condensation type), ≤0.1% (platinum type); Temperature resistance: -65℃ to 350℃; Chemical resistance: Alkali-resistant, water-resistant, acid-resistant; Curing condition: Room temperature (25℃), 4-8 hours full curing, demoldable after 2-3 hours; Shelf life: 12 months (original sealed package, stored in dry and cool place ≤25℃); Packaging: 1kg/jar, 5kg/20kg/25kg/200kg drum, vacuum packaging available.
Product Images and Videos
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Product Features & Advantages
Special anti-alkali formula effectively resists the corrosion of cement and concrete, avoiding mold aging and damage, and greatly extending the service life of molds. High tensile and tear strength can withstand the weight of wet cement and stone materials, preventing mold tearing during demolding. Excellent fluidity ensures that the silicone can fully fill the tiny gaps of stone carvings and textures, realizing high-fidelity replication of natural stone details. Non-stick surface design enables easy demolding, without damaging the surface of cast stone and cement products, reducing defective rates. Low shrinkage ensures that the size of the mold is stable, and the cast products have consistent dimensions, improving production efficiency. Good weatherability, UV-resistant and water-resistant, suitable for outdoor stone and cement mold production and long-term use. Dual curing systems can meet the different needs of buyers, with condensation type for cost-saving mass production and platinum type for high-performance and long-service-life requirements.
How to Use the Product
Method 1: Pouring Molding (Suitable for Small Stone/Cement Crafts)
Step 1: Prepare the stone or cement prototype and molding frame, fix the prototype firmly, and seal all gaps to avoid silicone leakage.
Step 2: According to the selected curing system, weigh the silicone base (Part A) and curing agent (Part B) in the recommended ratio, and stir evenly for 3-5 minutes to ensure full mixing.
Step 3: Perform vacuum defoaming for 2-3 minutes to eliminate air bubbles generated during mixing, ensuring the smoothness of the mold surface.
Step 4: Slowly pour the mixed silicone into the molding frame, ensuring that all texture details of the prototype are fully covered.
Step 5: Cure at room temperature (25℃) for 4-8 hours, demold gently after full curing, and then use the mold for stone or cement casting.
Method 2: Brushing Molding (Suitable for Large Stone Components)
Step 1: Clean the surface of the large stone prototype, fix the molding frame, and apply a thin layer of silicone evenly on the prototype surface to cover all details.
Step 2: Embed glass fiber cloth on the first layer of silicone for reinforcement, ensuring the mold has sufficient toughness.
Step 3: Brush 2-3 more layers of mixed silicone, each layer with a thickness of 1-2mm, until the required mold thickness is reached.
Step 4: Cure at room temperature (25℃) for 6-8 hours, demold carefully, and fully cure for 24 hours before formal use.
Application Scenarios
Widely used for mold making of natural stone carving replication, architectural cement components, garden stone sculptures, concrete decorative parts, plaster crafts, municipal stone facilities and cultural relic restoration. It is suitable for stone processing factories, cement product manufacturers, landscape engineering companies, sculpture studios and cultural relic restoration institutions. This product can improve the detail restoration rate of stone and cement products, reduce the frequency of mold replacement, shorten the production cycle, and help buyers reduce production costs while improving product quality and market competitiveness.
Certifications and Compliance
The product complies with ISO 9001 quality management system and CE industrial standards, ensuring stable product quality and safe use. All formulas meet international chemical transportation and import and export regulations, supporting smooth cross-border B2B bulk procurement. The platinum-cured version meets international industrial safety standards, non-toxic and odorless, suitable for various stone and cement molding scenarios.
Customization Options
Supports customization of hardness within the range of 20-40 Shore A to adapt to different stone textures and cement product weights. Provides viscosity adjustment to meet the needs of pouring or brushing molding for different sizes of molds. Optimizes curing speed (adjustable within 3-10 hours) to match the production rhythm of buyers. Offers formula modification for high-alkali cement materials and ultra-large stone molds. Customizes packaging specifications from small test jars (1kg) to industrial bulk drums (200kg) according to buyer order volume and use needs.
Production Process
Adopts high-purity industrial-grade Silicone raw materials and special anti-alkali additives, and undergoes precise proportioning, closed-loop vacuum mixing (to avoid air bubbles and ensure uniform texture), multi-index quality testing (including alkali resistance, tensile strength, shrinkage rate, fluidity), automatic filling and sealed packaging. Each batch of products is tested with actual stone and cement materials to ensure compatibility and stable performance. Mature production lines and sufficient inventory can guarantee on-time delivery for both small-batch test orders and large-scale bulk orders.
FAQ
Q1: Can this silicone be used for molding high-alkali cement?
A1: Yes, it is specially formulated with anti-alkali ingredients, which can effectively resist the corrosion of high-alkali cement and ensure the service life of the mold.
Q2: Can it replicate the natural texture of marble and granite?
A2: Yes, its excellent fluidity can fully fill the tiny texture gaps of natural stone, realizing high-fidelity replication of marble, granite and other stone textures.
Q3: How to maintain the mold to extend its service life?
A3: After each use, clean the mold surface, avoid contact with sharp objects, and store it in a dry and cool place, which can effectively extend the reuse times.
Q4: Is it suitable for outdoor large-scale stone sculpture molds?
A4: Yes, it has good weatherability, UV-resistant and water-resistant, and can be used for outdoor large-scale stone sculpture molds for long-term use.
Q5: Do I need to apply a release agent when using it for stone prototypes?
A5: No, the product has a non-stick surface, which can realize smooth demolding without applying a release agent; release agent is only recommended for smooth non-porous prototypes such as glass and metal.
Shenzhen Hong Ye Jie Technology Co., Ltd
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