# 6.3.2 1c and 2C SMP Compositions

> From: LOCTITE®X Digital Manual for Bonding (https://www.loctitex.com/en/manuals/bonding/6.3.2-1c-and-2c-smp-compositions/)

#### 6.3.2 1c and 2C SMP Compositions

A 1C SMP adhesive cures using the moisture in the air, while 2C systems cure via an added water paste as a second component. This system makes 2C SMP adhesives cure much faster than 1C systems, independent of environmental relative humidity.

19) Proebster, Manfred. Industrial sealants. Landsberg am Lech, Germany: Verlag Moderne Industrie, 2004

20) Austerberry, Michael. ‘Silane-Modified Polymers (SMP) Combining the Best of Silicone & Organic Polymers.‘ International Silicone Conference –May 17, 2016. 2016. 1-25.