FS125 is a one-part, neutral curing, low modulus, low odour silicone sealant suitable for perimeter joint sealing applications with high movement capability. It has excellent primerless adhesion to multiple surfaces including masonry, brick, aluminium, PVC-U, polycarbonate, polyacrylate, wood, painted wood, glass and glazed surfaces.

Usage/purpose

FS125 is ideal for use in expansion & curtain wall joints, perimeter joints around windows or doors, panel joints between most common substrates, heel and toe beads, polycarbonate glazing and other general joint sealing applications.

• Not suitable for some substrates such as neoprene, butyl rubber, EPDM, bituminous or tar-containing surfaces. Contact with bituminous or tar-containing surfaces can lead to discolouration and failing adhesion.
• Not suitable for trafficable joints or areas subject to abrasion.
• Not suitable for over-painting. For safe sealing on natural stone use FA870/FA880. On other sensitive substrates test first.

Safety data sheet must be read and understood before use.

• Meets the requirements of EN ISO 11600 G&F 25LM
• High movement capability
• Long-term resistance to weathering, ageing and extra UV protection
• Low modulus formulation ensures minimum stress at joint faces
• Neutral cure: low odour
• Modern colour range in low sheen finish
• Easy to tool into place and smooth off
  
  
  

Data Sheets

Technical Data Sheet
Digital Colour Card




The above information is based on current test data, health and safety information and application instructions supplied by our suppliers and manufacturers of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products refereed to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.