FSI Pyrolastic Silicone Fire Resistant Sealant  

Offering up to 4 hour fire rating to BS476 Part 20 & 22

A single part Silicone Sealant with excellent adhesion to both porous and non-porous substrates.  High performance fire rated silicone for fire sealing applications up to 50mm wide. Neutral curing fire resistant silicone sealant with excellent weatherability and flexibility. This product is capable of up to 4 hours fire resistance to EN1366-4 and BS476 pt 20 & 22 & up to 4 hours integrity. 

Pyrolastic Fire Rated Silicone Sealant can be used for fire sealing of curtain walling, building facades, expansion joints, door frames and block work walls etc.

• Up to 4 hours fire rating to BS476 Parts 20 & 22 in both horizontal and vertical joints
• No priming required for most substrates
• Can be used in joints up to 50mm wide
• Acoustic Isolation to EN10140 to 38db
• Air Permeability testing to EN1026 to 600Pa
• Weathering testing to ISO 11431
• Non-slump, easy to apply and tool off
• Low Smoke and Toxicity
• Halogen free, ozone and radiation resistant
• Causes no known effects to plastic pipes, plastic cables, sheathing or metallic components
• Joint movement capability +/- 25%
  

Packaging 
310ml Cartridges

Colour                                                
White & Grey 

Application Temperature                        
+ 5° up to 40°C

Slump                                                
Nil at joints up to 30mm

Shrinkage                                            
Approximately 5% 

Cure Rate                                            
3mm per day at 50% relative humidity 25°C

Shore A Hardness                                  
16

Tack Free                                            
20 mins at 25°C, 50% RH 

Water Resistance                                  
Waterproof when fully cured                              

U.V Resistance                                    
Good

Joint Movement                                   
25% of original joint size 

Elastic Recovery                                  
>90%

PERFORMANCE

Product Data Sheets
Pyrolastic Data Sheet
Pyrolastic Installation Manual
Pyrolastic Safety Data Sheet
Pyrolastic Declaration of Performance

All orders are usually despatched within 24 hours of receiving cleared payment (Mon–Fri).

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.