Trimethoxysilyl STPE
Medium High Modulus Silyl Terminated Polyether MS3310
Manta MS3310 is an alkoxysilane-terminated polyether (STPE) with medium activity and medium-high modulus, designed as a binder for moisture-curing elastic sealants and structural adhesives that require a balance of flexibility and curing speed. It is isocyanate-free and solvent-free, cures without bubbles and adheres to many substrates without primer.
- Grade
- MS3310
- Chemical Name
- Silane-terminated polyether
- Form
- Transparent viscous liquid
Overview
Manta MS3310 is an alkoxysilane-terminated polyether (STPE, also known as silane-modified polymer, SMP) with a polypropylene oxide (PPO) backbone. It is used as the reactive base polymer for adhesives, sealants, potting compounds and coatings, and it cures at ambient temperature with atmospheric moisture, typically accelerated by amine or organotin catalysts.
MS3310 is isocyanate-free, solvent-free and suitable for low-VOC formulations. It cures without bubbles and with low odor, gives a smooth surface and adheres to many substrates without primer. It can be formulated as one-component (1K) or two-component (2K) systems. Typical fields of use are construction and transportation; renewable energy applications are subject to testing.
Compared with Manta MS3303M, MS3310 has medium rather than high activity and a medium-high rather than medium modulus. Its viscosity is 45,000 – 55,000 mPa·s at 25 °C, against 40,000 – 50,000 mPa·s at 25 °C for MS3303M.
Key Features
- Medium activity with medium-high modulus
- Room-temperature curing
- High transparency
- Good resistance to aging and yellowing
- Good bond strength and tensile elasticity
- Good resistance to water and chemical solvents
- Good storage stability
- Solvent-free and low odor
- Can be blended with other polymers
Specifications
| Property | Typical Value |
|---|---|
| Appearance | Transparent viscous liquid |
| Flash Point | ≥ 100 °C |
| Viscosity (25 °C) | 45,000 – 55,000 mPa·s |
| Density (25 °C) | 1.002 – 1.005 g/cm³ |
| Activity | Medium |
| Modulus | Medium-high |
Typical values from the current Technical Data Sheet.
Typical Performance of a Reference Sample
| MS3310 Test Item | Standard | Result |
| Appearance | Colorless, transparent liquid | Colorless, transparent liquid |
| Viscosity (25 °C), mPa·s | 45,000 – 55,000 | 52,830 |
| pH Value | 6.0 – 9.0 | 7.0 |
| Tensile Strength, MPa | ≥ 0.5 | 0.54 |
| Elongation at Break, % | ≥ 100 | 124.8 |
| Hardness, Shore A | ≥ 20 | 29 |
Applications
- Elastic sealants: reactive base polymer for moisture-curing sealants that need a balance of flexibility and curing speed
- Structural adhesives: binder for moisture-curing structural adhesives
- Potting compounds and coatings: reactive base polymer in 1K or 2K systems
- Market segments: construction and transportation; renewable energy applications are subject to testing
Processing
- Moisture sensitivity: the alkoxysilane end groups of MS3310 hydrolyze and crosslink on contact with water or atmospheric moisture. Store the polymer in tightly sealed containers and process it under moisture-controlled conditions to avoid premature gelation.
- Fillers: MS3310 can be compounded with common fillers such as precipitated calcium carbonate (PCC), ground calcium carbonate (GCC), fumed silica, quartz flour, diatomaceous earth and aluminum hydroxide. The polymer content can be adjusted to the required properties.
- Drying: dry all fillers thoroughly before compounding. Vinyltrimethoxysilane (VTMO) is recommended as a water scavenger.
- Plasticizers: suitable plasticizers include phthalates (e.g., DINP, DIDP), DOTP and low-molecular-weight polyethers (PPG).
- Additives: adhesion promoters, antioxidants, fungicides and UV/light stabilizers can be added to adjust the end-use properties.
Related applications: Adhesives & Sealants
Related reading: Difference Between MS, STPE, SMP, STPU and SPU
Packaging & Storage
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.
Safety and Storage
Store in the tightly closed original container in a cool, dry place, protected from moisture and direct sunlight. Shelf life: 12 months from the date of production when stored as recommended. The product is classified as non-hazardous. Refer to the current Safety Data Sheet (SDS) for safety, handling and transport information.
Note: The values in this data sheet are typical values and are not intended for use in preparing specifications. Users should test the product to determine its suitability for their specific application.
Documents
- Technical Data Sheet · PDF Download TDS
- SDS and COA · on request Request Documents
Frequently Asked Questions
How do Manta MS3310 and Manta MS3303M differ?
MS3310 has medium activity and a medium-high modulus, with a viscosity of 45,000 – 55,000 mPa·s at 25 °C. MS3303M has high activity and a medium modulus, with a viscosity of 40,000 – 50,000 mPa·s at 25 °C. Choose by the activity and modulus your formulation needs, and confirm the cure profile in your own system.
How does MS3310 cure?
MS3310 cures at ambient temperature with atmospheric moisture, typically accelerated by amine or organotin catalysts. It can be formulated as a one-component (1K) or two-component (2K) system.
Related Products
MS3310 is one step in the sealant and adhesive formulation chain. One inquiry can cover the other raw materials in your formulation, with samples, technical documents, quotation and shipment handled together.
- End Cappers
- MS, STPE & SPUR Polymers
- Adhesion Promoters
- Water Scavengers
- Crosslinkers
- Catalysts
![Chemical structure of [(Methylcarbamato)methyl]dimethoxymethylsilane (Manta AM121)](/images/products/manta-am121-methylcarbamatomethyl-methyldimethoxysilane-chemical-structure.webp)
Need a finished adhesive or sealant rather than the polymer? See our custom MS adhesives and sealants service.
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