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Firesilicone B1 FR is a high quality, neutral, elastic, one-component sealant based on silicones which conforms to the DIN4102 B1 standard for fire retardancy and has a fire rating of up to 4 hours in certain joint configurations.
Shelf life And Storage: 9 months in unopened packaging in a cool and dry storage place at temperatures between +5°C and +25°. Do not expose to frost.