The Metacaulk MC 150+ is an outstanding, versatile intumescent fire - rated sealant perfect for construction joints and through - penetrations. When exposed to fire, it quickly activates, effectively preventing the spread of flames, smoke, hot gases, and water. It offers up to 4 hours of reliable fire protection according to ASTM E814 (UL 1479) and ASTM E1966 (UL 2079) standards. With an STC rating of 51 for excellent sound control and a minimum 3 - year shelf life, this water - based, VOC - compliant sealant is a top choice for interior applications. It needs no dilution or mixing, and is easy to use. Key features include great fire and smoke protection as it expands under heat, being water - based and non - sag, flexible and durable for dynamic movement and freeze - thaw conditions, mold - resistant, easy to apply with various tools, and paintable for interior use. Applications range from construction joints on vertical and horizontal surfaces to through - penetrations of EMT, telephone, and power cables in different types of floors and walls. It comes in a red color, has an STC rating of 51, a minimum 3 - year shelf life, and is certified by ASTM E814 (UL 1479), ASTM E1966 (UL 2079), and Clean Air Gold. Choose Metacaulk MC 150+ for reliable fire protection, ease of use, versatility, environmental friendliness, and long - term performance.
Using the Metacaulk MC 150+ is a breeze. You can apply it with a caulking gun, bulk loading gun, trowel, or pump it directly from the pail. Just make sure the surface is clean and dry before application. When applying, keep an even pressure to ensure a smooth layer. As for safety, this product is VOC - compliant, so it's relatively safe to use, but still, make sure the area is well - ventilated. For maintenance, there's not much to worry about. It has a long shelf life of at least 3 years. Just store it in a cool, dry place. If you notice any mold, don't worry as it's mold - resistant, but if it gets too dirty, you can clean it gently with a damp cloth. It can be painted over to match your interior, so feel free to customize it to your needs.
