High-Viscosity STP Polymer | Manta MS330B

Manta MS330B is an alkoxysilane-terminated polyether (STPE, also known as silane-modified polymer, SMP) with a polypropylene oxide (PPO) backbone. It is designed for moisture-curing systems that require a balance of flexibility and crosslinking, and it cures at ambient temperature with atmospheric moisture, typically accelerated by amine or organotin catalysts.

Compared with conventional silicone and polyurethane systems, MS330B is solvent-free and isocyanate-free and is suitable for low-VOC formulations. It cures with low odor and without bubbles, giving a smooth surface that can be painted over, and it has good adhesion to many substrates without primer. Renewable energy applications are subject to testing.

At 60,000 – 70,000 mPa·s at 25 °C, MS330B is more viscous than Manta MS3310, which has the same medium activity and medium-high modulus at 45,000 – 55,000 mPa·s at 25 °C. The higher viscosity typically means less fumed silica to reach the required thixotropy and allows a higher polymer content relative to fillers, which contributes to the mechanical strength, durability and elasticity of the finished product.

• Elastic sealants: reactive binder for sealants with a smooth surface that can be painted over
• Structural adhesives: reactive binder in one-component (1K) or two-component (2K) systems
• Potting compounds and coatings: reactive binder for potting compounds and protective coatings
• Thixotropic formulations: high base viscosity typically reduces the fumed silica needed to reach the required thixotropy, which can reduce formulation cost
• Market segments: construction, transportation and general industry; renewable energy applications are subject to testing

50 kg plastic drum with aluminum-foil liner bag;

200 kg drum with aluminum-foil liner bag;

1,000 kg IBC (tote);

Other pack sizes available on request.