Neutral-cure silicone sealants have been successfully used with the range of steel finishes on our roofing and walling; and on flashings, cappings, and gutters made from the same materials as the cladding.
Neutral-cure silicone sealants:
- have good adhesion to the clean surface of all our roofing and walling;
- are water resistant and non-corrosive;
- are resistant to extremes of heat and cold while retaining good flexibility;
- are excellent gap fillers;
- provide high resistance to ultra-violet rays (sunlight);
- have a long service life;
- are not adhesives.
It is important that only neutral-cure silicone be used with sheet steel. Other silicone sealants, often have a vinegar or ammonia smell, and give off aggressive by-products during curing which are detrimental to sheet steel.
If in doubt, look for a message on the sealant package, such as Suitable for use with galvanised steel and ZINCALUME® steel.