Silicone 40A Resin is the first accessible 100% silicone 3D printing material, using Formlabs’ patent-pending Pure Silicone Technology™. Eliminate molding and labor-intensive casting processes and 3D print pure silicone parts in-house, in a matter of hours. Choose Silicone 40A Resin to create soft, pliable, and durable parts that can withstand repeated cycles of flexing, stretching, and compression without tearing.

• Shore Hardness: 40A
• Elongation at Break of 230%
• Tear Strength of 12 kN/m
• Operating temperature between -25 °C and 125 °C
• Ross Flexing Fatigue (-10 C, Notched) > 500,000 cycles

This silicone boot is a soft, pliable cover to protect the clutch actuator cylinder in a vehicle from water, dirt, and debris. Because Silicone 40A Resin shows excellent chemical and thermal resistance, the boot can be exposed to high temperatures and chemicals such as salt water, oils, alcohol, or polar solvents without showing any degradation in properties. The durability of Silicone 40A Resin allows for the boot to be used on the field for validation testing or as an end-use part.