IROSTIC® S 7730

IROSTIC® S 7730 is a polyester-based, linear, aromatic thermoplastic polyurethane (TPU) for solvent-based adhesives. Key features include a fast crystallization rate, good heat resistance, excellent green strength, short open time, and good solubility in many solvents including Methyl Ethyl Ketone (MEK), Acetone, 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: 1K (1 Component) Adhesive, 2K (2 Component) Adhesive, Footwear Adhesives, Solventborne Adhesive

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

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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

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 70 - 75°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 7730 is supplied in boxes.IROSTIC® S 7730 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
Mechanical Properties
ValueUnitsTest Method / Conditions
Hardness41.0-44.0 Shore DShore DDIN 53505
Tensile Strength at Break26.0-36.0 MPaMPa
Physical Properties
ValueUnitsTest Method / Conditions
Density1.2 g/cm³g/cm³ISO 1183-1
Viscosity400.0-600.0 mPa.smPa.sInternal Method
Viscosity1200.0-1600.0 mPa.smPa.sInternal Method at 20°C, 15% solid in MEK
Viscosity2200.0-2800.0 mPa.smPa.sInternal Method of solution