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)

Application Method: Sachet Dispenser

Compatible Substrates & Surfaces: Coated Surfaces, Glass

Features: Excellent Corrosion Protection, 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

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

Processing temperature: +5°C to +35°C

Preparation: 

  • 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.

Cleaning:
Körasolv PU

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

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Density1.3g/cm³-
Specific Volume Resistancemin. 1 · 10¹⁰Ω·cmKö-test method 100262
Technical Data
ValueUnitsTest Method / Conditions
Drive-Away-Times (cars, respectively without and with double-sided airbags)4 - 6hFMVSS 212/208
Tack Free Time35.0minDIN 50 014, NC 23/50-2
Electrical Volume Resistivity10¹⁰Ω.cm-
Cured Properties
ValueUnitsTest Method / Conditions
Curing to Depth (within first 24 h)3mm/dayDIN 50014
Elongation at Breakmin. 500%DIN EN ISO 527
Hardness63Shore ADIN ISO 7619-1
Skin Formation Time35minDIN 50014
Tensile Strengthmin. 7.5mPaISO 37, DIN 53504
Processing Properties
ValueUnitsTest Method / Conditions
Processing Temperature5 - 40°C-
Service Temperature- 40 to 100°C-
Short Term Temperature Resistance140°C-
Storage Temperature10 - 25°C-

Technical Details & Test Data

Processing Information
Suitable Substrates Glass
Coated surfaces
Various other substrates
Consistency Non-sagging
Spreadable
Surface Requirements Dry
Clean
Free of grease
Free of dust
Surface Cleaning Körasolv" CL 17
Adhesion Promoter (non absorbing surface) Körabond HG 17
Application Equipment Sachet dispenser

 

  • Cleaner for Tools Körasolv® PU
  • Avoid Contact with Isocyanate Reactive Substances Avoid direct contact with isocyanate reactive substances, especially alcohol such as spirit, dilutions, cleaning compounds and reaction or curing products of silane-modified polymers or silicones until the adhesive has attained full cure. This will prevent the adhesive from curing properly.
  • Compatibility The adhesion on normal vehicle varnishes does not require the use of primer
  • Bonding of Glass For bonding on glass surfaces it is necessary to use Körasolv® CL 17 and Körabond® HG 17.

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