WINDOWS  
We Silicone and mastic internal and external windows 
WINDOWS  
We Silicone and mastic internal and external windows 
 
With the right colour and right mastic. it is very important to choose the correct mastic when it comes to windows.  
 
For external windows a low modulus silicone must be used as it is more flexible and with stands the harsh weather conditions such as uv damage and acidic rain. More importantly to with stand the movement all building come across. 
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