Manta MS3303T Silane Terminated Polyether

Manta MS3303T is an alkoxy-terminated polyether polymer with a polyoxypropylene backbone. It is specifically engineered as a base resin for moisture-curing systems, forming a resilient elastic network through the hydrolysis and cross-linking of alkoxy groups in ambient humidity.

Compared to traditional silicone and polyurethane technologies, MS3303T provides a superior balance of mechanical properties and environmental safety. It is a 100% solvent-free, low-VOC resin that contains no free isocyanates, ensuring a safe and eco-friendly formulation.

Properties

• Fast Curing: Accelerated curing profile for increased productivity.
• High Transparency: Crystal clear appearance for optical-grade applications.
• Excellent Weathering & Yellowing Resistance: Long-term UV stability and anti-yellowing performance.
• Superior Adhesion & Elasticity: High bond strength combined with excellent tensile elongation.
• Excellent Water & Chemical Resistance: Highly resistant to moisture and various chemical solvents.
• Superior Storage Stability: Long shelf life and consistent viscosity over time.
• Eco-Friendly: Solvent-free and odorless, ensuring a safe working environment.
• Broad Compatibility: Can be seamlessly blended with other polymers for formulation flexibility.

Manta MS3303T is a versatile base resin designed for the formulation of high-performance adhesives, sealants, potting compounds, and protective coatings. It features a flexible curing mechanism, triggered by atmospheric moisture at room temperature in the presence of catalysts (such as amines or organotin compounds):

1. Optically Clear Sealants & Adhesives: Due to its high transparency and anti-yellowing properties, it is ideal for “crystal clear” sealants used in glass assembly, decorative bonding, and visible joints.
2. Fast-Assembly Industrial Bonding: Optimized for production lines requiring rapid curing and high initial green strength. It is suitable for both one-component (1K) systems for ease of use and two-component (2K) systems for deep-section curing.
3. Electronic Potting & Encapsulation: Provides excellent moisture protection and chemical resistance for sensitive electronic components, ensuring long-term storage stability and reliability.
4. Transportation & Automotive: Used in the structural bonding and sealing of vehicle components where high elasticity and resistance to environmental aging are critical.
5. High-End Construction: Applicable for elastic sealing in curtain walls, window perimeters, and interior decoration, offering a paintable, solvent-free, and odorless finish.

Processing

1. Moisture Sensitivity: Due to the moisture-curing nature of alkoxy groups, it is critical to maintain a strictly dehydrated environment during storage and production to prevent premature cross-linking.
2. Formulation Versatility: The dosage of MS3303T can be adjusted based on specific requirements. It is highly compatible with a wide range of fillers, including PCC (Nano-precipitated Calcium Carbonate), GCC (Ground Calcium Carbonate), Fumed Silica (White Carbon Black), silica flour, diatomaceous earth, and aluminum hydroxide.
3. Dehydration Process: To avoid premature gelation, all fillers must be thoroughly dehydrated. Silane VTMO is typically recommended as a high-efficiency moisture scavenger.
4. Plasticizer Compatibility: Suitable plasticizers include Phthalates (such as DOP, DINP, DIDP), as well as PPG and other low-molecular-weight polyethers.
5. Functional Additives: For enhanced performance, MS3303T can be blended with various additives, including adhesion promoters (tackifiers), antioxidants, fungicides (mildew inhibitors), and UV/Light stabilizers.