25 Shore A RTV-2 Silicone Rubber for Mold Making
Model: 717AB-F (25°) Hardness: 25±2 Shore A
717AB-F (25°) is a 1:1 platinum mold silicone with 25±2 Shore A hardness, offering firmer mold support for repeated casting work. Its cured structure helps reduce deformation when molds hold larger parts, thicker walls or wider cavities. Good flow and self-degassing support accurate detail capture during mold preparation, while tear resistance helps the mold handle repeated release cycles. This grade suits resin, gypsum and craft casting where mold stability matters more than extreme softness. It provides a practical balance between flexibility, anti-deformation performance and long service use.
Inquire
TDS
Mold-Making Silicone – Tough, Flexible, and Reusable
Balanced flexibility and support. Soft yet strong. Resists deformation. Perfect for a wide range of mold-making projects. Precise replication. Tear-resistant. Easy demolding. Natural bubble release. Low odor. High performance. Safe and eco-friendly. JinHua's 25° silicone is built to last — and reuse.


Versatile Mold-Making for All Your Craft Projects
25 Shore A hardness. Flexible. Tear-resistant. Reusable. Cured molds work perfectly with various casting materials like epoxy resin and gypsum — making it easy to create all kinds of crafts. The ideal choice for producing accurate, high-quality molds.

Specifications
| Detection Indicator | National Standards | Qualification | Unit | |
| / | / | Component A | Component B | / |
| Resin Compound Appearance | Visual Inspection | Translucent | Translucent | / |
| Dynamic Viscosity | GB/T 1024T-2008 | 1500±500 | 1500±500 | mpa·s |
| Hardness | GB/T 531.1-2008 | 25±2 | ShoreA | |
| Tensile Strength | GB/T 528-2009 | ≥2 | Mpa | |
| Elongation | GB/T 528-2009 | ≥300 | % | |
| Tear Strength | GB/T 529-2008 | ≥12 | KN/m | |
| Operate Time | 25℃ | 0.5 | H | |
| Remarks | Curing Conditions: Curing at room temperature for 4 hours | |||
FAQ
-
What is mold-making silicone used for?
-
It is used to create flexible molds for resin crafts, candles, soap, plaster, concrete, and decorative art pieces.
-
Do I need to remove bubbles?
-
This silicone is designed for natural bubble release, but slow mixing and careful pouring help reduce trapped air even more.
-
Is the cured mold flexible?
-
Yes. The cured mold is soft, flexible,tear-resistant, and easy to mold without damaging delicate details.
-
Can the molds be reused?
-
Yes. With proper use and storage, silicone molds can be reused many times while maintaining fine detail.
-
Can I do OEM/ODM customization for silicone molding?
-
Yes, JinHua offers OEM/ODM customization services for silicone molding. We will customize the product packaging, labeling, specifications, etc., according to your needs.