RTV-2 Silicone for Mould Making
Liquid silicone rubber for resin, concrete, PU, and industrial mould making.
- High Tear Strength for longer mould life
- Low Shrinkage for better dimensional accuracy
- Stable Curing for more reliable production
Tell us your casting material, mould size, and target hardness. We’ll recommend a suitable grade within 12 hours.
Lead Time:
3–7 Days
MOQ:
50kg
Sample:
Available
H.S Code:
39100000
Designed for Different Applications
01
Resin Mould Making
For jewelry, decorative parts, craft moulds, and detailed resin casting.
Fine detail reproduction, smooth surface finish and easier demolding.
02
Concrete & Stone Mould Making
For decorative concrete, textured stone moulds, wall panels and architectural casting.
Better durability, stronger tear resistance and more repeatable use.
03
GRC/GFRC Mould Making
For decorative panels, textured surfaces and larger mould structures.
Practical durability, good detail transfer and stable mould performance.
04
PU & Industrial Prototyping
For prototype parts, product development and functional casting moulds.
Stable curing, reliable molding performance and better size consistency.
How to Choose The Right Silicone for Mould Making
The right grade depends on your casting material, mould size, required detail and demolding stress. If you’re unsure, send us your application and we’ll recommend a starting grade.
| Application | Recommended Shore A | Key Features |
|---|---|---|
| Soft & Flexible Molds (Best for candle, soap, delicate designs) | 10–20 | Easy release, very flexible |
| General Purpose Molds (For resin, crafts, and standard applications) | 20–30 | Balanced strength and flexibility |
| Heavy-Duty Molds (For concrete, PU, and industrial casting) | 30–40 | Higher durability, longer lifespan |
WHAT SETS US APART
Why Choose Topsil As Mould Making Silicone Supplier
Low Shrinkage for Better Accuracy
Helps maintain mold dimensions and detail consistency during casting.
High Tear Strength for Longer Mold Life
Better suited for repeated demolding and more demanding mold structures.
Stable Curing for More Predictable Production
Designed for more consistent processing and more reliable batch-to-batch performance.
Supply Stability and Technical Support
From sample evaluation to bulk supply, we support application-based grade recommendation and technical document sharing for suitable projects.
For projects with specific market or application requirements, selected grades can be discussed together with available technical documentation.
Used in Real Mold Making Projects
Resin Mold Applications
Suitable for molds that require fine pattern reproduction and cleaner surface detail.
Concrete Mold Applications
Used in repeat casting projects where durability and release performance are important.
Prototype Mold Applications
Supports projects where stable molding and dimensional consistency matter.
You ask, we answer
Questions Buyers Usually Ask about Manufacturer
Lower Shore A grades are softer and easier to release. Higher Shore A grades are usually preferred for molds that need better durability and longer service life.
Platinum cure silicone is often chosen for lower shrinkage, better dimensional stability and cleaner molding performance. Tin cure may still suit some general-purpose projects depending on cost and application.
Yes. We can share technical data and discuss sample options based on your project requirements.
Yes. We can discuss packaging, bulk supply and private label support based on your business needs.
Factory Capacity
Built for Stable Supply — Not Just a Sample Order
For international buyers, mold performance is only part of the decision. Stable supply capacity, controlled production, and technical support also matter.
Our team supports projects with manufacturing capability, internal quality control, and application-focused technical coordination — helping customers move more smoothly from sample evaluation to repeat orders.
- manufacturing capability
- internal quality control
- application-focused communication
- sample-to-bulk supply support
Start with the Right Silicone for Better Mold Results
Tell us your casting material, application, and mold type. We will recommend a suitable grade and share the relevant technical information for your evaluation.
