MS Polymer Selection Guide
Selecting an MS polymer starts with what the finished product has to do. Work through these decisions in order, then use the tables below to shortlist grades and request samples.
1. Backbone and end group
Silyl-terminated polyethers (STPE) cure through their silane end groups, and the end group influences cure speed and how the network builds. Silylated polyurethanes (SPUR) such as Manta SPUR M3050 use a polyurethane backbone instead. High-reactivity grades such as Manta MS313 cure rapidly on exposure to moisture.
2. Viscosity
Viscosity decides how the formulation flows and how much filler and plasticizer it can carry. Manta MS350 and Manta MS305D sit at the low end, for self-leveling and sprayable systems. Grades such as Manta MS314 sit at the high end, where the polymer has to build body.
3. Modulus
Low-modulus grades such as Manta MS27 and Manta MS201S suit joints that must accommodate movement. Medium to high-modulus grades such as Manta MS312 and Manta MS7500 suit adhesives that have to carry load.
4. Activity and catalyst
Higher activity shortens skin and cure times, while lower activity leaves a longer open time. Tin-free catalysts can be used with many grades, and the TDS of each grade states this. Confirm the cure profile with your own catalyst package.
5. Test in your formulation
Check cure speed, adhesion on the real substrates and storage stability before committing to a grade. Samples are charged. The sample fee includes courier delivery and is deducted from your first formal order.
MS Polymer Type STPE
| Grade | Viscosity | Modulus | Activity | Density | Tack-Free Time | TDS |
|---|---|---|---|---|---|---|
| MS201S | 18,000 – 28,000 mPa·s | Low | High | approx. 1.0 g/cm³ | – | |
| MS2030T | 6,000 – 10,000 mPa·s | Moderate | Moderate | approx. 1.0 g/cm³ | – | |
| MS2628 | 6,000 – 9,000 mPa·s | High | – | 1.002 – 1.005 g/cm³ | – | |
| MS27 | 28,000 – 38,000 mPa·s | Low | High | approx. 1.0 g/cm³ | – | |
| MS3030T | 10,000 – 15,000 mPa·s | Moderate | Moderate | approx. 1.0 g/cm³ | – | |
| MS314 | 80,000 – 130,000 mPa·s | Low | Medium | 1.002 – 1.005 g/cm³ | 30 min | |
| MS4000H | 15,000 – 30,000 mPa·s | Medium | Low-medium | 1.002 – 1.005 g/cm³ | 30 min | |
| MS7500 | 40,000 – 60,000 mPa·s | High | – | 1.002 – 1.005 g/cm³ | – |
Trimethoxysilyl STPE
| Grade | Viscosity | Modulus | Activity | Density | Tack-Free Time | TDS |
|---|---|---|---|---|---|---|
| MS305D | 1,400 – 1,600 mPa·s | High | High | 1.002 – 1.005 g/cm³ | 30 min | |
| MS311 | 4,000 – 5,000 mPa·s | Medium-high | High | 1.002 – 1.005 g/cm³ | 30 min | |
| MS312 | 8,000 – 13,000 mPa·s | Medium-high | Medium | 1.02 – 1.05 g/cm³ | – | |
| MS3303H | 50,000 – 60,000 mPa·s | Medium | High | 1.002 – 1.005 g/cm³ | 30 min | |
| MS3303I | 35,000 – 45,000 mPa·s | Low-medium | High | – | – | |
| MS3303M | 40,000 – 50,000 mPa·s | Medium | High | 1.002 – 1.005 g/cm³ | – | |
| MS3303T | 40,000 – 50,000 mPa·s | Medium | High | 1.002 – 1.005 g/cm³ | – | |
| MS330A | 25,000 – 35,000 mPa·s | Medium-high | High | 1.02 – 1.05 g/cm³ | – | |
| MS330B | 60,000 – 70,000 mPa·s | Medium-high | Medium | – | – | |
| MS330C | 25,000 – 35,000 mPa·s | Medium-high | High | 1.02 – 1.05 g/cm³ | – | |
| MS3310 | 45,000 – 55,000 mPa·s | Medium-high | Medium | 1.002 – 1.005 g/cm³ | – |
High-Reactivity STPE
SPUR & Specialty Binders
| Grade | Viscosity | Modulus | Density | TDS |
|---|---|---|---|---|
| MF3 | 1,000 – 2,000 mPa·s | – | 1.02 – 1.05 g/cm³ | |
| MS692 | approx. 150 mPa·s | – | 1.13 g/cm³ | |
| SPUR M3015 | 90,000 – 120,000 mPa·s | Low | 1.02 – 1.05 g/cm³ | |
| SPUR M3050 | 35,000 – 55,000 mPa·s | Medium | approx. 1.0 g/cm³ |
Need a finished adhesive or sealant? 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.