Manta MS330A MS Polymer
REACH Registered

Manta MS330A MS Polymer

Product Code: Manta MS330A

Chemical Name Trimethoxysilane Terminated Polyether
CAS Number 216597-12-5
Product Form Liquid
Synonyms STPE; Polyether with gamma isocyanato trimethoxy silane; MS Polymer; Silyl-Terminated-Polyether

Technical Specifications

PARAMETER VALUE / RANGE
Appearance Colorless Transparent Liquid
Viscosity (25℃) / mpa·s 22000 – 32000
Density (25℃) / g/cm3 1.02 – 1.05
Catalyst Dosage (Tin, %) 1-2
Flash Point (℃) 237
Activity High Activity
Modulus Medium-high modulus

Manta MS330A is a silane-terminated polyether polymer featuring trimethoxysilylpropylcarbamate functional groups on a linear Polypropylene Oxide (PPO) backbone.


Product Description

Manta MS330A is a silane-terminated polyether (STPE) polymer featuring trimethoxysilylpropylcarbamate functional groups on a linear Polypropylene Oxide (PPO) backbone.

Specifically engineered for premium moisture-curing elastic systems, MS330A undergoes a controlled hydrolysis process to form a robust, high-density siloxane network. This solvent-free and isocyanate-free binder ensures an odorless curing process with zero bubble formation, making it an ideal “green” alternative for high-end construction and industrial applications. It combines exceptional adhesive strength with superior elastic recovery, maintaining structural integrity across diverse substrates.

Properties

  • Optimal Balance of Activity & Modulus: High reactivity ensures fast tack-free times while delivering medium-to-high modulus for structural support.
  • Superior Elasticity & Recovery: Exhibits excellent mechanical strength combined with very high elastic recovery, ideal for joint movements.
  • Environmentally Friendly: 100% solids, zero VOC, and isocyanate-free; no bubbles or odors are generated during the cross-linking process.
  • Excellent Optical Properties: High transparency and outstanding resistance to yellowing, suitable for clear sealants and coatings.
  • Ease of Compounding: Low base viscosity allows for efficient mixing with standard fillers and auxiliaries, ensuring a smooth production process.
  • Primerless Adhesion: Provides strong, durable bonds to a vast range of substrates, including porous and non-porous surfaces, without the need for pre-treatment.

 

Specifically engineered for premium moisture-curing elastic systems, MS330A undergoes a controlled hydrolysis process to form a robust, high-density siloxane network. This solvent-free and isocyanate-free binder ensures an odorless curing process with zero bubble formation, making it an ideal “green” alternative for high-end construction and industrial applications. It combines exceptional adhesive strength with superior elastic recovery, maintaining structural integrity across diverse substrates.


Applications

  1. Automotive & Transportation: High-performance elastic sealants for vehicle bodies, rail transport, and container construction where vibration resistance is essential.
  2. Construction & Architecture: Medium-to-low modulus joint sealants for high-rise buildings and infrastructure, offering excellent weatherability.
  3. Transparent Encapsulation: Precision potting compounds and crystal-clear adhesives for electronic components and decorative glass bonding.
  4. Eco-Friendly Interior Design: Sustainable DIY and professional adhesives for interior decoration, ensuring healthy indoor air quality (Low VOC).
  5. Industrial Sealing Coatings: Protective coatings requiring high flexibility, durability, and superior adhesion to metallic and plastic surfaces.

 

Processing

Manta MS330A is highly soluble in common organic solvents but virtually insoluble in water. Upon exposure to moisture, it undergoes slow hydrolysis—releasing methanol—to form a chemically inert siloxane network. While uncatalyzed MS330A exhibits temporary stability in air, it must be stored and processed under moisture-controlled conditions to prevent slow polycondensation.

Standard mixing and compounding equipment are suitable for formulating Manta MS330A. To ensure long-term shelf life, the addition of water scavengers is essential. Vinyltrimethoxysilane (VTMO) or Trimethoxysilylmethyl-methylcarbamate(Alpha-silane) are highly recommended to prevent premature gelation during production and storage.

 

Typical Performance of a Reference Sample

MS330A Inspection Items Standard Analysis Results
Appearance Colorless or light yellow

transparent liquid

Colorless transparent liquid
Viscosity(25℃) mPa.s 20000 – 38000 26880
pH Value 6-9 7.0
Tensile Strength Mpa ≥0.5MPa 0.77
Elongation at tensile break% ≥80 109
Hardness(Shore A) ≥35 36

 

 

 

Guide formulation:  

Component Parts by Weight Example / Function
Manta MS330A 30 – 40 MS Polymer
Plasticizer 10 – 20 PPG, DINP, or DOTP
Water Scavenger 1 – 2 Vinyltrimethoxysilane (VTMO)
Thixotropic Agent 2 – 5 Fumed Silica

(Hydrophilic or Hydrophobic)

Fillers 40 – 50 Ground Calcium Carbonate (GCC) / TiO₂
Antioxidants and UV-stabilizers 0.1 – 2 Hindered Phenols (AO) / HALS (UV)
Adhesion Promoter 1 – 2 Amino-silanes (e.g., AMEO, AMMO)
Catalyst 0.3 – 0.6 Organotin (DBTDL) or Tin-free alternatives

 

Application Areas

Adhesives & Sealants Paints & Coatings

Packaging & Handling

Packing

50kg plastic drum lined with aluminum foil bag;

200kg drum lined with aluminum foil bag;

1000kg IBC/Tote;

Can be customized.

 

Safety and Storage

Keep in a cool and dry place and avoid storage in direct sunlight. Shelf life is 24 months. It is non-hazardous substance.

Support

Frequently Asked Questions

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