M3303I MS Polymer / Silyl-Terminated-Polyether

M3303I is a polymer of alkoxysilane-terminated polyether, and its main chain is a polyoxypropylene structure. Due to the hydrolysis and cross-linking of alkoxy groups in a humid environment, it can be used to make moisture-curing elastic sealants, elastic structural adhesives, and sealing coatings. M3303I not only has excellent environmental performance, but also has excellent adhesion to different substrates. Compared with traditional sealants and adhesives such as silicone and polyurethane, it has many excellent characteristics such as no solvent, low VOC, no free isocyanate, surface finish, and no bubbles during the curing process. It is particularly suitable for various fields such as construction, industry, transportation, and new energy.

Product No.                                             Siwin-M3303I 

Chemical Name                                       Silane modified polyether / MS Polymer 

Appearance                                             Colorless, transparent 

Flash point                                              ＞100℃ 

Viscosity (25℃) / mpa.s                           30000-40000 

Density (25℃) / g/cm3                            1.002- 1.005 

Activity                                                     High activity 

Modulus                                                   Medium-low modulus 

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.

M3303I is the main resin raw material for the production of adhesives, sealants, potting compounds and coatings. It solidifies by absorbing moisture in the air under the action of catalysts (such as amines, tin, etc.) at room temperature. According to needs, we can design it into a one-component or two-component system formula product, which can widely bond different substrates.

Process characteristics

1. Since alkoxy groups hydrolyze and crosslink in a humid environment, it is very important to isolate moisture during storage and production.

2. The amount of M3303I added can be flexibly changed in the formulation design, and it can be mixed with most fillers, such as nano calcium carbonate, heavy calcium carbonate, white carbon black, silica powder, diatomaceous earth, aluminum hydroxide, etc.

3. In order to avoid premature curing of the product, the filler needs to be dehydrated, and Siwin-V31 is generally used as a dehydrator.

4. Commonly used plasticizers include phthalates (PPG, DOP, DINP, DIDP, etc.), low molecular weight polyethers, etc.

5. In order to obtain better performance, it can be mixed with other additives, such as tackifiers, antioxidants, mildew inhibitors, light stabilizers, etc.

Package 

IBC plastic drum：1000kgs Steel drum lined with aluminum foil bag: 200kgs (Other packaging can be customized.)

Store in a cool, dry place and avoid direct sunlight. Product shelf life is 12 months.

Transport as a general non-hazardous chemical.