Health and Safety of MS Polymers silicone sealant

2025-02-15

Health and Safety During Formulation and Application

Perhaps the most compelling value proposition associated with MS Polymer silicone sealant sealants is their lack of isocyanates and solvents. Their absence broadens the range of formulation possibilities and allows the sealants to meet stringent environmental regulations.

news (1).png

Isocyanates free : The silyl-terminated polymer eliminates the need for isocyanate. Isocyanates are highly reactive chemicals. Consequently, formulations containing isocyanates must be protected from contact with reactive agents, including moisture, as this will drastically decrease shelf life.

Isocyanates are also considered to be hazardous materials to use. Caution must be exerted in using materials containing isocyanate including adequate ventilation and prompt washing of contacted body areas. The isocyanate can jeopardize compliance with safety and health regulations as well as the welfare of contractors.

Since no isocyanates are present, bubbling during curing is not a concern as it often is with polyurethane systems. Bubbles can damage the integrity of the sealant or adhesive. MS Polymer silicone sealant sealants do not bubble on the surface at all. The sealant’s surface is kept smooth and intact. A constant and uninterrupted joint is easily achieved.

Solvents free: The low viscosity of MS Polymer silicone sealant resins allows for a solvent-free formulation that is less dependent on temperature change. Therefore, formulations are easy to process and have low-temperature gunnability. MS Polymer silicone sealant sealants can be easily extruded from cartridges with a low force even at low temperatures. Furthermore, the smoothing and tooling of the joint are easily accomplished.

The absence of solvent provides environmentally friendly sealants that meet environmental regulations regarding VOCs, out-gassing, and toxicity. Furthermore, the lack of solvents protects the formulator from the rising cost of solvent raw materials and VOC mitigating facilities.

Applications: One-part MS Polymer silicone sealant sealants cure relatively fast even at low temperatures. Thus, they find use in applications where property development speed is important (e.g., application when expecting inclement weather or high traffic areas). Once cured, MS Polymer silicone sealant sealants also exhibit little dirt pick up when compared to silicone sealants.