LMN is an abbreviation of 'Low Modulus Neutral'.
When it comes to silicone sealants, the term "modulus" refers to a material's flexibility or rigidity, specifically, the substances resistance to deformation due to external forces.
In short:
Low modulus = Highly flexible (more elastic)
High modulus = More rigid, less flexible (less elastic)
Low modulus silicone sealants are specifically designed to withstand movement and shifting of materials, making them ideal for applications where flexibility is key. This allows them to maintain a strong and reliable seal, even in the face of external forces. So the next time you come across the term LMN in the silicone sealant world, remember that it's all about flexibility and resilience.
The term "neutral" refers to how it cures.