Körapur® 177 is a one-component, flexible and high-performance direct glazing sealant designed for vehicle glass. The product is a polyurethane-based sealant that prevents contact corrosion in aluminum-body vehicles and is suitable for use with integral aerials. It has good stability and workability, with a non-sag consistency that makes it easy to apply.

Chemical Family: Polyurethanes (PU)

Product Type: 1K (1 component) Adhesive, 1K (1 component) Sealant, Reactive Adhesive, Reactive Sealant

Application Area: Vehicle Glass, Windows

Compatible Substrates & Surfaces: Glass

Features: Excellent Humidity Resistance, Excellent Strength, Fast Curing, Good Sagging Resistance, Good Weather Stability, High Elongation, High Performance, Highly Flexible, Improved Workability, Low Temperature Performance, UV Resistant

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Application Area
Compatible Substrates & Surfaces
Cure Method

Processing temperature: +5°C to +35°C


  • The adhesion on normal vehicle varnishes generally does not require the use of primer. It is advisable to carry out preliminary adhesion tests on the support. Specific guidance regarding the use of primers may be obtained by submitting substrate samples to our laboratories.
  • The surfaces to be bonded must be clean, dry and free from dust and grease. It is necessary to apply Körasolv CL 17 and Körabond HG 17 on glass. Due to the diversity of substrates, preliminary tests are recommended.
  • Avoid direct contact with isocyanate reactive substances, especially alcohol such as spirit, dilutions and cleaning compounds until the adhesive has attained full cure. This will prevent the adhesive from curing properly.
  • By direct or indirect contact with some other organic products preliminary tests are recommended.

Körasolv PU

  • Clean tools immediately after use.
  • Once cured material can only be removed mechanically.


Physical Form
Technical Data
ValueUnitsTest Method / Conditions
ViscosityPaste, spreadable, non - sag properties--
Tack Free Time35.0minDIN 50 014, NC 23/50-2
Curing Time (on the first day)3.0mmDIN 50 014, NC 23/50-2
Electrical Volume Resistivity10¹⁰Ω.cm-
Hardness55.0-DIN 53 505, Shore A
Elongation at Tearmin. 600%DIN 53 504
Tensile Strength7.5N/mm²DIN 53 504
Temperature Resistance- 40 to 100°Cwith brief points at +120 °C
Drive-Away-Times (Cars)4 - 6hFMVSS 212/208

Packaging & Availability

Packaging Type
Regional Availability
  • North America
Packaging Information

600 ml sachet (carton à 20 pcs.)

Storage & Handling

Shelf Life
12 Months
Storage Condition
  • Do not store at temperatures above 25°C, store in unopened container  in a cool, dry place.
  • Keep away from wet areas, direct sunlight and heat sources.

Precautions: When processing Körapur 177, avoid direct skin contact with the uncured material. Use of safety gloves is recommended.

Drive away information:

  • Drive Away Time: 5 hours (23 °C and 50% relative humidity)
  • On vehicles fitted with both driver & passenger airbags
  • Vehicle glass weight below 35 kg. Glass weight above 35 kg contact technical department