PERMABOND MS359

Harmonization Code : 8001.20 | Unwrought tin: Tin alloys

PERMABOND MS359

Main features

  • No-Mix Moisture Cure
  • 10-20 Minute Skin Formation
  • High-Elongation Exterior Bonding

Product Description

Permabond MS359 Grey is a single-part, moisture-curing MS polymer adhesive for exterior bonding and sealing. Its grey, high-viscosity formulation requires no mixing and develops a skin in 10-20 minutes, with an approximate cure rate of 5 mm per 24 hours. The cured material combines 45-60 Shore A hardness with 150-350% elongation for an elastomeric bond on supported metals, plastics, composites, PVC, polycarbonate, polystyrene, and wood. The adhesive is primer-free on supported substrates and can be painted after cure. Applications include exterior frames, fascias, and related construction assemblies.

Key features

  • No-Mix Moisture Cure: Single-part MS polymer cures by humidity without component mixing.
  • Controlled Skin Formation: Develops a skin in 10-20 minutes before continued cure.
  • Flexible Cured Bond: Provides 150-350% elongation and 45-60 Shore A hardness.

Applications

Applications include exterior construction bonding and sealing for frames and fascias, plus supported assemblies using metals, plastics, composites, PVC, polycarbonate, polystyrene, or wood.

Product Family

PERMABOND MS359

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Grey
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.5
Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
1,500,000-2,500,000 mPa.s
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
150-350 %
Other Properties
Storage Temperature
5-25 °C

Additional Information

Technical properties

As supplied / before processing

Property Value Unit Method / condition
Chemical compositionMS polymerAs supplied
AppearanceGreyAs supplied
Viscosity1,500,000-2,500,000mPa s5 rpm at 25 deg C
Low-shear viscosity4,500,000-9,000,000mPa s1 rpm at 25 deg C
Specific gravity1.5As supplied
Curing mechanismHumidityRoom-temperature moisture cure
Skin-over time10-20minutesTypical curing property
Cure rateApprox. 5mm/24 hoursTypical curing property
Technical properties

After processing / final state

Property Value Unit Method / condition
Shear strength - steel, aluminum, zinc, PVC, or wood2-3MPaISO 4587
Shear strength - polycarbonate or polystyrene1-1.5MPaISO 4587
Tensile strength2-3MPaISO 37
Elongation at break150-350%ISO 37
Hardness45-60Shore AISO 868

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