Medium High Modulus Silyl Terminated Polyether MS3310

Manta MS3310 is a medium-high modulus silyl-terminated polyether (STPE) with 45,000–55,000 mPa·s viscosity and medium-activity alkoxy end groups, built on a high-purity polyoxypropylene backbone. It is formulated into structural adhesives, elastic sealants, potting compounds and coatings, giving primerless adhesion to diverse substrates and a bubble-free, odorless, isocyanate-free cure in 1K or 2K systems.

Manta MS3310 is an alkoxy-silylated polyether polymer built on a high-purity polyoxypropylene (PPO) backbone. It is specifically designed as a premium binder for moisture-curing elastic sealants and structural adhesives that require a balance of high flexibility and rapid curing.

Distinguishing itself from traditional polyurethane and silicone systems, MS3310 is entirely isocyanate-free, solvent-free, and low-VOC. It ensures a bubble-free, odorless curing process, delivering a superior surface finish. With exceptional primerless adhesion to a broad spectrum of substrates, MS3310 is an ideal choice for demanding applications in the construction, transportation, and renewable energy industries.

Properties

• Fast curing
• High transparency
• Excellent anti-aging and anti-yellowing properties
• Excellent bonding strength and tensile elasticity
• Excellent water resistance and chemical solvent resistance
• Excellent storage stability
• Solvent-free, odor-free, environmentally friendly
• Can be mixed with other polymers.

Manta MS3310 serves as the primary reactive resin for the production of high-performance adhesives, sealants, potting compounds, and coatings. It cures at ambient temperatures by absorbing atmospheric moisture, typically accelerated by catalysts such as amines or organotin compounds.

Depending on specific formulation requirements, it can be designed as either a one-component (1K) or two-component (2K) system, providing exceptional primerless adhesion to a diverse range of substrates.

Processing

1. Moisture Sensitivity: As alkoxy groups undergo hydrolysis and cross-linking in humid environments, it is critical to ensure hermetically sealed storage and a moisture-controlled production environment to prevent premature gelation.
2. Formulation Latitude: The dosage of Manta MS3310 can be flexibly adjusted. It exhibits excellent compatibility with various functional fillers, including PCC (Precipitated Calcium Carbonate), GCC (Ground Calcium Carbonate), fumed silica, quartz flour, diatomaceous earth, and aluminum hydroxide.
3. Dehydration: To avoid premature curing, all fillers must be thoroughly dehydrated before compounding. Vinyltrimethoxysilane (VTMO) is typically employed as a high-efficiency water scavenger.
4. Plasticizer Compatibility: Suitable plasticizers include various phthalates (e.g., DINP, DIDP, DOTP) and low-molecular-weight polyethers (PPG).
5. Performance Additives: For optimized end-product properties, MS3310 can be formulated with adhesion promoters, antioxidants, biocides (fungicides), and UV stabilizers.

Typical Performance of a Reference Sample