SPREE Two Part Silicone Rubber (SPR-RTV-072) 5 KG Set
SPREE Two Part Silicone Rubber (SPR-RTV-072) is a premium-quality, high-performance RTV-2 (Room Temperature Vulcanizing, 2-part) silicone rubber specially formulated for creating highly detailed, durable, and flexible molds in demanding industrial, artistic, and prototyping applications. Supplied as a precise ratio system of Part A (Base Rubber) and Part B (Curing Agent), this condensation-cured (tin-cured) liquid silicone transforms into a tough, tear-resistant, translucent elastomer at room temperature.
Designed for smooth and reliable performance, it features excellent flowability and viscosity control, allowing it to accurately capture intricate details and undercuts from the master model. Its high tensile and tear strength ensures a long mold life, even when casting complex shapes and aggressive materials like resin, polyurethane, and polyester. The cured rubber exhibits superior chemical and heat resistance, maintaining its stability through numerous casting cycles.
SPREE Two Part Silicone Rubber is ideal for applications where precision, detail replication, and durability are critical, such as manufacturing custom industrial gaskets, seals, and technical components. Its translucent appearance allows for excellent visibility during pouring and curing, making it perfect for rapid prototyping and casting for electronics. This highly adaptable silicone is widely used across diverse fields, including creating detailed molds for arts & crafts, producing flexible and durable silicone for special effects (SFX), and fabricating complex industrial components.
Key Features & Benefits:
High-Performance 2-Part System: Accurate SPR-RTV-072 formulation for dependable curing and mold quality.
Excellent Detail Replication: Highly fluid liquid ensures exceptional flow into intricate features, undercuts, and textures.
Superior Mechanical Strength: Outstanding tensile and tear strength for durable, long-lasting molds and repeated use.
Durable & Flexible Mold Life: Maintains flexibility and shape integrity through numerous casting cycles and complex geometries.
Translucent Appearance: Provides high visibility for monitoring pouring, degassing, and curing.
Precision Casting & Prototyping: Ideal for applications requiring exact dimensional accuracy and material compatibility.
Smooth and Reliable Performance: Predictable mixed viscosity and cure times for consistent, high-quality results.
Chemical & Heat Resistant: Withstands aggressive casting resins and maintains stability at elevated temperatures.
Versatile Industrial & Creative Use: Suitable for everything from technical engineering molds to artistic reproductions.
Typical Applications:
Creating Detailed Molds for Arts & Crafts: Molds for sculpture, ceramics, plaster, wax, and complex art pieces.
Rapid Prototyping & Casting for Electronics: Producing functional prototypes, enclosures, and components.
Manufacturing Custom Industrial Gaskets & Seals: Fabricating durable, precisely shaped seals for machinery.
Flexible & Durable Silicone for Special Effects (SFX): Designing realistic prosthetics, props, and textured skin effects.
Industrial Engineering & Technical Molds: Custom tooling, intricate components, and multi-part mold systems.
High-Precision Technical Casting: Casting complex and dimensionally critical engineering parts.
⚙️ Technical Data (Typical Values)
| Property | Value (Typical) | Notes |
| Product Type | Two Part RTV-2 Silicone Rubber | Condensation (Tin) Cured |
| Model | SPR-RTV-072 | Precise formulation |
| Appearance (Part A) | Liquid Silicone (White/Base) | High viscosity fluid |
| Appearance (Part B) | Catalyst (Clear/Activator) | Low viscosity fluid |
| Mixed Appearance | Translucent Elastomer (Cured) | Excellent visibility |
| Net Weight | 5 KG Set | 5 KG Part A + 125 ML Part B |
| Mixing Ratio (Part A : B) | 100 : 3 (by weight) | Crucial for proper curing |
| Mixed Viscosity | ~18,000 – 25,000 mPa.s | Controlled flowability |
| Work Life (Pot Life) | ~30 – 60 Minutes @ 23°C | Ample time for processing |
| Demold Time | ~12 – 24 Hours @ 23°C | Cures fully at room temp |
| Tensile Strength | ~3.0 – 4.0 MPa | High mechanical strength |
| Tear Strength | ~18 – 22 kN/m | Outstanding tear resistance |
| Elongation at Break | ~400 – 500% | High flexibility and stretch |
| Hardness (Shore A) | ~25 – 30 | Medium softness |
| Temperature Resistance | -40°C to +180°C (Cured) | High thermal stability |
| Linear Shrinkage | ~≤0.3% | Low dimensional change |
| Cure Type | Room Temperature Vulcanizing | Condensation cure mechanism |
| Shelf Life | 9 – 12 Months (Unopened) | Store in cool, dry place |
