Derby WS250 Weather Sealant

Product description
Derby WS250 Weather Sealant is a high movement factor, one component, self-curing silicone sealant especially suitable for general glass mounting and weather sealing on curtain walls, building facades and roofs.

Features
• Excellent resistance to weather conditions
• Excellent UV stability
• Temperature resistant from -40°C to +150°C
• Neutral and odorless
• Meets ISO 11600 25 LM G requirements
• Seals glass facades, curved glazing, roof glazing and other components
• Application temperature is between +5 °C and +35 °C.

Application
Derby WS250 is available ready to use in sausage packs and cartridges. It can be applied directly without mixing. Joints must be dry, clean, free from dust and oil. Care should be taken with plastics that are susceptible to stress cracking. For optimum adhesion, it is recommended to use a suitable primer.

Shelf life
It has a maximum shelf life of 12 months when stored at temperatures between 10°C and 25°C. Keep in its unopened package. Avoid direct contact with water.

Warning
It is not used in the production of double glazing.