For the longest possible lifespan, platinum-cure (addition-cure) silicone is the ideal choice. Our HC-series, P-series, and VB series rubbers are all platinum-cure systems.
A platinum-cured silicone casting, mask, or sculpture can last for decades, with lifespans exceeding 30 years. Unlike tin-cure silicone, platinum silicones are more durable, as they do not easily evaporate or degrade.
Platinum-cure silicone rubbers are highly resistant to UV rays, extreme temperatures, and have minimal shrinkage. They also resist moisture, which can cause latex to break down. Additionally, cured platinum silicone is resistant to oils from handling and many solvents. These properties make platinum silicones a preferred material for applications requiring long-term stability, such as museum exhibits, props, sculptures, and animatronics.
Few room-temperature curing materials can match the long-term durability and stability of platinum-cured silicone rubbers.