IROSTIC® S 8612

IROSTIC® S 8612 is a polyester-based, linear, aromatic thermoplastic polyurethane (TPU) designed for solvent-based adhesives. It features a fast crystallization rate, good heat and hydrolysis resistance, strong green strength, short open time, and good solubility in solvents including methyl ethyl ketone (MEK), acetone, ethyl acetate, toluene, methylene chloride, MEK/toluene (8:2), and MEK/ethyl acetate (1:1).

Chemical Family: Polyurethanes (PU), Thermoplastic Polyurethanes (TPU)

Polymer Name: Thermoplastic Polyurethane (Polyester based)

End Uses: 2K (2 Component) Adhesive, Footwear Adhesives, Solventborne Adhesive

Features: Excellent Green Strength, Good Hydrolysis Resistance, Heat Resistance, Rapid Crystallization, Short Open Time

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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Adhesive & Sealant End Applications
Markets
Applications
Application Details

Do-it-yourself adhesive, footwear, automotive industry, textile industry and printing industry.

Properties

Physical Form
Soluble In
Notes

¹ = viscosity (Brookfield RVT) at 20°C for 15% solid in MEK.

Regulatory & Compliance

Technical Details & Test Data

Processing Parameters
  • This IROSTIC grade can be used as a 2-component system in combination with our IRODUR product range.
  • Clean and dry parts to be bonded.
  • If possible, roughen the two surfaces using abrasive material.
  • Apply a thin layer of adhesive solution.
  • Dry surfaces for approx. 30 min to allow solvent evaporation.
  • Activate both surfaces by warming up to 60 - 65°C.
  • Press surfaces together for 30 seconds.
  • The bonding is stable after approx. 1 minute.
  • Full bonding strength will be reached after 24 hours.
  • Please note that the procedure described here is for the adhesive solution prepared with the IROSTIC.

Safety & Health

Health and Safety Information

Before making any preparations with this product, it is essential that all personnel are aware of the necessary precautions that must be taken.

Packaging & Availability

Packaging Type
Regional Availability
  • Global

Storage & Handling

Storage Information

IROSTIC® S 8612 is supplied in boxes. IROSTIC® S 8612 has a minimum storage time of six months from the date of shipment, provided that the material is stored in a cool (10°C-25°C) and dry location, in its original closed packaging and protected from direct exposure to sunlight.

Other

Appearance (SDS)
Solid
Color (SDS)
Light yellow
Odor (SDS)
Odorless
Mechanical Properties
ValueUnitsTest Method / Conditions
Hardness40.0-45.0 Shore DShore DDIN 53505
Tensile Strength at Break13.0-24.0 MPaMPa
Physical Properties
ValueUnitsTest Method / Conditions
Density1.2 g/cm³g/cm³ISO 1183-1
Viscosity60.0-1400.0 mPa.smPa.sat 20°C, 15% solid
Viscosity400.0-600.0 mPa.smPa.ssolution