MS Polymer Type STPE
Medium Modulus Silyl Terminated Polyether MS4000H
Manta MS4000H is a silyl-terminated polyether (STPE) with medium modulus and low-to-medium activity, used as a base polymer for moisture-curing sealants, adhesives and coatings in industrial, transportation, construction and product assembly applications. It is designed for a balance of long-term durability, reactivity and storage stability.
- Grade
- MS4000H
- Chemical Name
- Silyl-terminated polyether (STPE)
- Form
- Light yellow viscous liquid
Overview
Manta MS4000H is a silyl-terminated polyether with moisture-reactive silyl functional groups, used as a base polymer for moisture-curing sealants, adhesives and coatings. It is designed to provide a balance of long-term durability, reactivity and storage stability.
Its silane end groups hydrolyze on contact with water or atmospheric moisture, releasing methanol, and condense to form a siloxane network. The tack-free time is 30 min, and the medium modulus suits sealants and adhesives that require medium hardness.
MS4000H is a medium-modulus option for formulators who do not need the high Shore A hardness of Manta MS2628 or Manta MS7500, which are both high-modulus polymers. Its viscosity of 15,000 – 30,000 mPa·s at 25 °C falls between those of the two high-modulus grades.
Key Features
- Medium modulus for sealants and adhesives that require medium hardness
- Tack-free time of 30 min
- Low-to-medium activity
- Balance of long-term durability, reactivity and storage stability
- Good storage stability of the polymer and formulated products
Cross-Reference
Performance similar to Kaneka SAX400.
Trademarks are the property of their respective owners; no affiliation is implied.
Specifications
| Property | Typical Value |
|---|---|
| Appearance | Light yellow viscous liquid |
| Viscosity (25 °C) | 15,000 – 30,000 mPa·s |
| Density (25 °C) | 1.002 – 1.005 g/cm³ |
| Flash Point | > 100 °C |
| Water Solubility | Practically insoluble |
| Tack-Free Time | 30 min |
| Tensile Strength | ≥ 0.4 MPa |
| Elongation at Break | ≥ 100 % |
| Hardness (Shore A) | ≥ 20 |
| pH Value | 6.0 – 9.0 |
| Activity | Low-medium |
| Modulus | Medium |
Typical values from the current Technical Data Sheet.
Applications
- Industrial: base polymer for sealants and adhesives
- Transportation: base polymer for adhesives and sealants
- Construction: base polymer for construction adhesives
- Product assembly: base polymer for product assembly adhesives
Processing
The silane end groups of Manta MS4000H hydrolyze on contact with water or atmospheric moisture, releasing methanol, and condense to form a siloxane network. Store and process the polymer with moisture excluded.
Dry fillers and pigments before use. Vinyltrimethoxysilane (VTMO) is commonly used as a water scavenger to improve the storage stability of the formulated product.
Fillers, plasticizers, catalysts and additives commonly used in silane-terminated polymer formulations can be used; their type and level should be confirmed by testing in the specific formulation.
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 does MS4000H differ from MS2628 and MS7500?
MS4000H is a medium-modulus polymer for sealants and adhesives that require medium hardness. MS2628 and MS7500 are high-modulus polymers for formulations requiring high Shore A hardness. Viscosity also differs: MS4000H is 15,000 – 30,000 mPa·s at 25 °C, MS2628 is 6,000 – 9,000 mPa·s at 25 °C and MS7500 is 40,000 – 60,000 mPa·s at 25 °C.
What cured properties can I expect from MS4000H?
The data sheet lists tensile strength ≥ 0.4 MPa, elongation at break ≥ 100 % and Shore A hardness ≥ 20, with a tack-free time of 30 min. Properties of a finished product depend on the formulation and should be confirmed by testing.
Is MS4000H classified as hazardous?
The TDS classifies MS4000H as non-hazardous. It is practically insoluble in water and has a flash point of > 100 °C. Refer to the current SDS for safety, handling and transport information; it is available on request.
How is MS4000H packed?
Packaging: 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. There is no fixed minimum order quantity; quantities are agreed case by case.
Related Products
MS4000H 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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