CS25 Condensation Cure Silicone is a high-quality, versatile silicone ideal for a range of applications. This silicone features a fast cure time, making it ideal for projects that require quick turnaround times. The condensation cure process ensures a consistent and reliable cure, while the superior flexibility and durability of the silicone make it ideal for use in applications that require flexibility and resistance to wear and tear. Whether you're creating molds for casting, making gaskets, or sealing joints, CS25 Condensation Cure Silicone is sure to deliver reliable results every time. With its excellent adhesion properties, this silicone can be used on a wide range of surfaces, including metal, glass, and plastic, making it a must-have for any DIY or professional project.

Size: 1kg

Further Information

Mixing Ratio

100 p.b.w. CS25 Condensation Cure Silicone Rubber
5 p.b.w. CS25 Condensation Cure Silicone Rubber Catalyst

Brief Description of Typical Use

A part to be copied is positioned within a 'setup box' which will contain the silicone rubber whilst it cures.

The silicone rubber is thoroughly mixed with its catalyst at the correct ratio by weight and then carefully poured all over the surface of the part to be copied (the master). Once the surface of the part is covered the remainder of the silicone is poured into the setup box. The silicone will cure at room temperature in around 24hrs. Once the silicone has cured it is removed from the setup box and then the flexibility of the rubber is used to allow removal of the part from inside the new silicone rubber mould.

Compatibility Information - Dos and Don'ts

Although by no means an exhaustive list, the mould materials, pigments and additives listed below have all been tested and are known to work well with AS40 Addition Cure Silicone.

• Compatible Moulds
• Almost all Plastic moulds
• Metal moulds
• Condensation Cure Silicone moulds with a release agent

• Compatible Pigments
• RTV Silicone Colour Pigment (for vivid opaque colours)
• Translucent Tinting Pigment (for less vivid opaque colours)

Key Processing Information

• Ease of Use
• Suitable for professional and hobby use (follow SDS advice).

• Odour
• CS25 is almost odourless.

• Safety Precautions
• Wear gloves and goggles and work in a well ventilated area. Always read the SDS before use.

• Ambient Conditions
• Can be used from 10 to 30°C although pot-life and cure time will be affected significantly.

• Degassing
• Although CS25 will self degas, we recommend degassing for the best results.

• Mix Ratio
• Mix silicone and Catalyst 100:5 by weight. Use digital scales.

• Mixing
• Mix thoroughly by hand for at around 2 minutes.

• Pot-Life
• 60-90 Minutes. Be sure to pour your casting(s) before this time.

• Cure Time/Demould
• Demould Time 24 Hours @ 25°C

• Shelf Life
• 6 Months