EVERBUILD 500GREY Everflex 500 Bath & Sanitary Silicone C3 295ml Manhattan Grey\r\n- Very well-priced for a Premium Bathroom Sanitary silicone sealant mastic.- Everflex 500 Bath & Sanitary Silicone from Everbuild is a premium quality mid modulus acetoxy cure silicone sealant that contains a high level of powerful anti-fungal compound to prevent mould and fungal growth.- Typically used in areas of high humidity, such as bathrooms, toilets, showers and kitchens in both commercial and domestic applications.- Everbuild Everflex 500 bath & sanitary silicone, C3.