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Clear silyl-terminated polyether flowing onto a surface (Manta MS2030T)
MS Polymer Type STPE

Medium-Viscosity MS Polymer | Manta MS2030T

Manta MS2030T is a low-viscosity silyl-terminated polyether (STPE) with moderate activity and moderate modulus, used as a base polymer for moisture-curing elastic sealants, structural adhesives and encapsulants in construction, transportation and DIY markets. It releases no CO2 during cure, so formulations cure without bubbles, and tin-free catalysts can be used.

Grade
MS2030T
Chemical Name
Silyl-terminated polyether (STPE)
Form
Light yellow, transparent liquid
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Overview

Manta MS2030T is a low-viscosity silyl-terminated polyether based on a polyoxypropylene backbone with moisture-reactive silyl end groups. It is a solvent-free and isocyanate-free base polymer for elastic sealants and adhesives, and an alternative to conventional polyurethane and silicone systems. It can be formulated as a one-component (1K) or two-component (2K) system.

The polymer cures at ambient temperature by reaction with moisture. Unlike polyurethane systems it releases no CO2 during curing, so formulations cure without bubbles and with low odor. The low glass transition temperature (Tg) of the polyether backbone helps maintain flexibility over a wide temperature range.

MS2030T and Manta MS3030T share the same moderate activity and moderate modulus. MS2030T is the lower-viscosity of the two: 6,000 – 10,000 mPa·s at 25 °C compared with 10,000 – 15,000 mPa·s at 25 °C.

Key Features

  • Moderate activity and moderate modulus
  • Good adhesion strength
  • Room-temperature curing; tin-free catalysts can be used where required
  • Good resistance to aging and yellowing
  • Good resistance to water and chemical attack
  • Good elastic recovery
  • Good storage stability
  • Solvent-free and low odor
  • Can be blended with other Manta polymers

Cross-Reference

Performance similar to Kaneka S203H.

Trademarks are the property of their respective owners; no affiliation is implied.

Specifications

Typical properties of Manta MS2030T
PropertyTypical Value
AppearanceLight yellow, transparent liquid
Flash Point≥ 237 °C
Boiling Point≥ 250 °C
Viscosity (25 °C)6,000 – 10,000 mPa·s
Density (25 °C)approx. 1.0 g/cm³
Water SolubilityPractically insoluble
ActivityModerate
ModulusModerate

Typical values from the current Technical Data Sheet.

Applications

  • Construction: can be formulated into low-modulus sealants for expansion joints and facades with good weathering resistance and movement capability
  • Transportation: elastic sealants for rail vehicles, buses and specialty vehicles
  • Consumer and DIY: easy-to-use sealants with bubble-free curing
  • Interior decoration: solvent-free, low-odor and paintable decoration sealants
  • Industrial assembly: binder for elastic adhesives and potting compounds in electronics and general manufacturing; electrical properties to be verified in the final formulation

Processing

Manta MS2030T is readily soluble in common organic solvents (e.g., ethanol) and practically insoluble in water; formulation components should therefore be oil-soluble. The terminal silane groups hydrolyze with moisture to silanols, which condense in the presence of a catalyst to form a siloxane (Si–O–Si) network.

Without catalyst the polymer is stable in air for a limited time, but moisture must be controlled during processing and storage. Dry all raw materials and add a moisture scavenger such as vinyltrimethoxysilane (VTMO) to ensure the shelf life of the formulated product.

Conventional mixing equipment can be used. Please contact Manta technical service for formulation support.

Cleaning

Uncured material can be removed with common organic solvents such as ethanol or dimethyl carbonate (DMC). Cured material can only be removed mechanically.

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

Frequently Asked Questions

How does MS2030T compare with polyurethane sealant resins?

Unlike polyurethane systems, MS2030T releases no CO2 during curing, which gives bubble-free joints with low odor, and it is solvent-free and isocyanate-free. The low glass transition temperature of the polyether backbone helps maintain flexibility over a wide temperature range.

What solvents clean up MS2030T before it cures?

Uncured MS2030T can be removed with common organic solvents such as ethanol or dimethyl carbonate (DMC). Cured material can only be removed mechanically.

Is a moisture scavenger mandatory in MS2030T formulations?

Yes. Moisture must be controlled during processing and storage, so all raw materials should be dried and a moisture scavenger such as vinyltrimethoxysilane (Manta V31) added to ensure the shelf life of the formulated product. Without catalyst the polymer is stable in air only for a limited time.

Need a finished adhesive or sealant rather than the polymer? See our custom MS adhesives and sealants service.

Talk to our technical team

Tell us your application, target properties and estimated quantity. We will suggest grades and arrange documents or samples.

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