Liquid Silicone for Decoration Gypsum Molds

Product Overview

Technical Specifications

Type: Addition-curing RTV-2 silicone rubber

Mix Ratio: 1:1 (by weight)

Operating Time (25℃): 30-40 minutes (customizable)

Curing Time (25℃): 4-5 hours; 80-120℃ for tens of minutes (customizable)

Temperature Resistance: -60℃ to 250℃

Hardness: 20-40 Shore A (customizable)

Certifications: FDA, ISO9001, CE

Shelf Life: 10 months (sealed, indoor storage)

Product Features & Advantages

1. Precision Pattern Replication: Superior fluidity penetrates fine details, ensuring gypsum products retain intricate carvings and textures.
2. High Durability: Exceptional tear and tensile strength, supporting 50+ mold turns, reducing replacement frequency and costs.
3. Flexible Curing: Room temperature or heat-curable, adapting to mass production or small-batch customization needs.
4. Safe & Non-Toxic: FDA-certified, odorless, and environmentally friendly, complying with global decoration safety standards.
5. Deep Curing: Unaffected by mold thickness, ensuring uniform hardness and structural stability for large or thick gypsum products.
6. Customizable Solutions: Tailor color, viscosity, operating time, and curing time to match specific gypsum molding processes.

How to Use

1. Mix Part A and Part B in a 1:1 weight ratio, stirring thoroughly for 2-3 minutes to avoid air bubbles.
2. Perform vacuum degassing for 2-5 minutes (adjust time based on viscosity and vacuum strength).
3. Pour the mixed silicone into the mold frame, ensuring full coverage of the decorative master model.
4. Cure at room temperature (4-5 hours) or heat (80-120℃ for tens of minutes) until fully set.
5. Demold gently and clean the silicone mold; it’s ready for gypsum casting.

FAQ

1. Is this silicone suitable for large gypsum decorations?Yes, it supports deep curing without thickness limitations, ideal for large wall panels and architectural ornaments.
2. How many times can the mold be reused?With high durability, it can be reused over 50 times, depending on the complexity of the decorative pattern.
3. Can it replicate complex textures (e.g., stone grain, carvings)?Absolutely—its excellent fluidity ensures precise replication of even the finest details.
4. Is the curing time adjustable for mass production?Yes, we can customize faster curing times (e.g., 2 hours at room temperature) to match your production line.
5. What storage conditions are required?Store in a sealed container indoors, avoiding direct sunlight and rain—shelf life is 10 months.