Tonsan MS1937 is a high quality, neutral, elastic single component adhesive/sealant based on MS-Polymer, which cures by reaction with moisture to an elastic product. The skin formation and curing time are dependent on humidity and temperature, and the curing time also depends on joint depth. By increasing the temperature and moisture these time can be reduced; low temperature as well as low moisture retard the process. MS1937 is a good compromise between an adhesive and a sealant based on MS-Polymer. MS1937 is suitable for elastic seal which also high strength is required. MS1937 is odourless and free of solvents, isocyanates, silicones and PVC. It demonstrates good adhesion without primer to many substrates and is compatible with suitable paint systems. The adhesive/sealant also demonstrates good UV resistance and therefore can be used for interior and exterior applications.

Compatible Substrates & Surfaces: Acrylonitrile Butadiene Styrene (ABS), Aluminum, Brass, Fiberglass, Glass, Metal, Plastics, Poly(Methyl Methacrylate) (PMMA), Polycarbonate (PC), Polyesters, Polyvinyl Chloride (PVC), Stainless Steel, Steel

Features: Elastic Bonding, Excellent Primerless Adhesion, Good Adhesion, Good Color Stability, Good Mechanical Properties, Good UV Resistance, High Performance, High Strength, Non Corrosive, Non-Sagging, Paintable, Thixotropic

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
Ready-to-Use Product Features
Product Benefits
  • < 1% VOC
  • Odourless
  • Non-corrosive
  • Primerless adhesion on many substrates
  • High performance mechanical properties
  • Color stable and UV resistant
  • Ecological advantages – free of isocyanates, solvents, halogens and acids
  • Paintable

Applications & Uses

Markets
Applications
Application Area
Compatible Substrates & Surfaces
Cure Method
Application Limitations

When bonding and sealing PMMA and polycarbonate, under tension, stress corrosion cracking may occur. In such cases MS1937 should not be utilized.

Application Instructions
  • The substrates must be clean, dry, free of oil and grease.
  • Sausage is applied with the corresponding Hand or Air pressure pistols.
  • In the case of compressed air application, a pressure of (0.2-0.4) MPa is required.
  • After application, MS1937 can be smoothed with soapy water.

Properties

Physical Form
Technical Data
ValueUnitsTest Method / Conditions
Sag ResistanceNo sagging--
Specific Densityapprox. 1.45g/cm³-
Skin Formation Time (at 23 ± 2°C, 50 ± 5% relative humidity)5 - 20min-
Cure Rate (at 23±2°C, 50±5 % relative humidity)approx. 4mm/24h-
Hardnessapprox. 55Shore AISO 7619, GB/T531
Tensile Strengthapprox. 3.0MPaISO 37, GB/T528
Elongation (Break)approx. 200%ISO 37, GB/T528
Application Temperature5 - 40°C-
Operating Temperature-40 to 100°C-
Short Exposure120°C-
Storage Temperature8 - 28°C-
Adhesion Information

MS1937 has been tested and found to have excellent adhesion to the following unprimed substrates: aluminum, acrylic-coated aluminum, brass, steel, stainless steel, glass, fiberglass, ABS, rigid PVC, polyester etc. By the manufacturing of plastics, external release agents are used; these agents have to be removed prior to use. Depending on the surface it can be necessary to roughen the surface or to use a primer as an adhesion promoter to provide optimum adhesion.

Paintability Information

MS1937 may be over-painted, however due to the large number of paints and varnishes we strongly recommend a compatibility test before application. The drying time of alkyd resin based paints may increase.

Packaging & Availability

Regional Availability
  • Global
Packaging Information
Cartridge 430g
Sausage 400ml , 600ml

Storage & Handling

Shelf Life
12 months