RectorSeal has added a sprayable, silicone-based curtainwall joint sealant to its renowned Metacaulk 835+ elastomeric firestop sealant product line. The Metacaulk 835+ Spray is one of the construction industry’s most quick-curing and resilient silicone-based firestop sealants with elastomeric characteristics that aren’t compromised by seismic movement, rainfall, weather and other jobsite conditions. The easy-applying Metacaulk 835+ Spray is the perfect balance between sprayability, pot life and flowable viscosity. It outperforms the competition with its non-sag characteristics, resiliency, 30-60-minute tack time and quick 24-hour cure time (depending on ambient temperature). It’s manufactured in a concrete-matching gray color and is available in an … Read more