- Kansas City, Missouri, United States
- Jun 13th
B2 Ultra Low-Modulus Silicone Joint Sealant Spectrem® 1 Product Description Spectrem® 1 is an ultra low-modulus, high-performance, onepart, moisture-curing silicone joint sealant. Basic Uses Spectrem 1 has exceptional physical properties, making it an ideal sealant for sealing the most demanding dynamically moving joints. This includes material having a high coefficient of linear expansion such as aluminum curtainwalls, precast concrete panels, metal panels and window perimeters.