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Clear silyl-terminated polyether discharging from a stainless steel reactor outlet (Manta MS7500)
MS Polymer Type STPE

High Modulus Silane Terminated Polyether MS7500

Manta MS7500 is a high-modulus silyl-terminated polyether (STPE) used as a binder for semi-structural adhesives and high-strength sealants. It is designed to combine high modulus with high tensile strength and elongation in cured formulations, can be processed by hot or cold compounding, and can be formulated solvent-free and isocyanate-free.

Grade
MS7500
Chemical Name
Silyl-terminated polyether (STPE)
Form
Light yellow viscous liquid
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Overview

Manta MS7500 is a silyl-terminated polyether with moisture-reactive silyl functional groups, designed as a binder for semi-structural adhesives and high-strength sealants. It is intended for applications that require load-bearing capacity and elastic recovery, and combines high modulus with high tensile strength and elongation in cured formulations.

MS7500 can be processed by hot or cold compounding. It retains its mechanical properties over a wide temperature range and offers good reactivity and long-term storage stability. Its silane end groups hydrolyze on contact with water or atmospheric moisture, releasing methanol, and formulations based on MS7500 can be solvent-free and isocyanate-free.

MS7500 and Manta MS2628 are both high-modulus grades. MS7500 has the higher viscosity, 40,000 – 60,000 mPa·s at 25 °C compared with 6,000 – 9,000 mPa·s at 25 °C, and targets semi-structural bonding and high-strength sealants, while MS2628 is listed for flooring, industrial and general-purpose adhesives.

Key Features

  • High modulus and hardness for sealants and semi-structural adhesives requiring high Shore A hardness
  • High tensile strength and elongation in cured formulations
  • Short tack-free time for quicker handling and shorter production cycles, depending on the formulation
  • Retains mechanical properties over a wide temperature range
  • Suitable for hot or cold compounding
  • Good reactivity and long-term storage stability
  • Can be formulated solvent-free and isocyanate-free

Cross-Reference

Performance similar to Kaneka SAX750.

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

Specifications

Typical properties of Manta MS7500
PropertyTypical Value
AppearanceLight yellow viscous liquid
Viscosity (25 °C)40,000 – 60,000 mPa·s
Density (25 °C)1.002 – 1.005 g/cm³
Flash Point> 100 °C
Water SolubilityPractically insoluble
pH Value6.0 – 9.0
ModulusHigh

Typical values from the current Technical Data Sheet.

Applications

  • Industrial: semi-structural adhesives that require load-bearing capacity and elastic recovery
  • Transportation and automotive: adhesives and sealants that require load-bearing capacity and elastic recovery
  • Infrastructure and waterproofing: high-strength sealants
  • Construction: high-modulus sealants and adhesives
  • Specialty DIY: products that require load-bearing capacity and elastic recovery

Processing

The silane end groups of Manta MS7500 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 · Liquid Waterproofing & Construction

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

What distinguishes MS7500 from other Manta MS polymers?

MS7500 is a high-modulus grade designed to combine high modulus with high tensile strength and elongation for semi-structural adhesives and high-strength sealants. MS2628 is also high modulus but lower in viscosity (6,000 – 9,000 mPa·s at 25 °C versus 40,000 – 60,000 mPa·s at 25 °C), and MS4000H is a medium-modulus grade.

Does MS7500 support both hot and cold processing?

Yes. MS7500 can be processed by hot or cold compounding and offers good reactivity and long-term storage stability. Dry fillers and pigments before use and keep moisture out during storage and processing.

What are typical applications for MS7500?

Industrial and semi-structural adhesives, transportation and automotive, infrastructure and waterproofing, construction and specialty DIY products, in each case where load-bearing capacity and elastic recovery are required.

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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