Körapop 235

Identification

Chemical Family

Polyurethanes (PU),

Silanes

GBU

EA

RTU Product Type

1K (1 component) Sealant,

1K (1 component) Adhesive,

2K (2 component) Sealant,

Reactive Adhesive

Categories

Markets → Automotive & Transportation → Applications → Automotive → Interior

Markets → Automotive & Transportation → Applications → Bonding & Assembly → Transportation Assembly

Markets → Automotive & Transportation → Applications → Transportation → Commercial

Technologies → Adhesives & Sealants → Product Families → Sealing Technology → 1K (1 Component) Sealants

Technologies → Adhesives & Sealants → Product Families → Sealing Technology → Reactive Sealants

Application Information

Cure Method

Moisture Cure

Applications

Application Area

Seam Sealing,

Automotive Interior Trim,

Buses,

Recreational Vehicles,

Industrial Assembly,

Automotive Applications,

Construction Applications,

Transportation Application

Compatible Substrates & Surfaces

Glass,

Metal,

Plastics,

Galvanized Steel,

Coated Surfaces,

Aluminum Alloys,

Carbon Fiber Reinforced Plastics (CFRP),

Glass Fibre Reinforced Polymer (GFRP)

Applications & Uses

Processing Information

Preparation

• For some substrates the use of mechanical pretreatment and/or cleaner or primer is necessary to achieve good adhesion. Refer to the product properties section of this data sheet for special surface requirements and suitable adhesion promoters.

Processing

• Refer to the technical data table regarding processing parameters. Low temperatures can cause a temporary increase in viscosity resulting in reduced extrusion and slower curing rates.

Cleaning

• Clean tools immediately after use. Once cured, the material can only be removed mechanically. Appropriate cleaners are listed in the product properties table.

Dimensioning

• The required thickness of the adhesive layer depends on the expected maximum strength and joint movement. We recommend a minimum layer thickness of 2 mm.

Features

Ready-to-Use Product Features

Cold Resistance,

Excellent Moisture Resistance,

Very Good Heat Resistance,

Weather Resistance

Features & Benefits

Labeling Claims

Isocyanates-free,

Silicone-free,

Solvent-free

Product Features

Suitable Substrates	Metals
	Duroplastics
	Plastics
	Thermoplastics (except PE, PP, PTFE)
	Various composite materials (e.g. CFRP, GFRP) Glass
	Mineralic materials
	Coated surfaces
Consistency	Pasty
	Non-sagging
Surface Requirements	Clean
	Free of grease
Surface Cleaning	Körasolv GL
	Korasolv PU Körasolv WL
Adhesion Promoter (absorbing surface)	Korabond® HG 74 E
Adhesion Promoter (non absorbing surface)	Körabond® HG 81
	Korabond® HG 83
Application Equipment	Cartridge dispenser
	Sachet dispenser
	Dispensing system
Product Overpaintability	Wet-in-wet (depending on paint)
Product is free of	Isocyanates
	Silicones
	Solvents

 

• Cleaner for Tools Körasolv® GL Körasolv® PU
• Resistance against UV Radiation Not suitable for glass bonding with permanent UV radiation to the bonding area. Please ask your local sales office for products suitable for such applications.
• Stress Cracking Preliminary tests must be carried out on plastics with a tendency to stress cracking. (PMMA, ABS, PC or PS)
• Compatibility with Polystyrene Foams Not suitable for bonding polystyrene foams. Please ask your local sales office for products suitable for such applications.

 

Product Features

• Excellent weather resistance
• Excellent moisture resistance
• High heat resistance
• High cold resistance

Packaging & Availability

Country Availability

Australia,

Canada,

Switzerland,

China (Mainland),

Japan,

Korea,

Malaysia,

New Zealand,

Philippines,

Turkey,

Taiwan,

USA

Regional Availability

• Asia Pacific
• Europe
• North America
• Latin America
• India/MiddleEast/Africa (IMEA)

Properties

Physical Properties

	Value	Units	Test Method / Conditions
Density	1.4	g/cm³	-
Solid Content	100	%	-
Specific Volume Resistance	min. 10·10¹⁰	Ω·cm	Kö-test method 100262

Processing Properties

	Value	Units	Test Method / Conditions
Change in Volume	- 2	%	DIN EN ISO 10563
Curing to Depth (within first 24 h)	3	mm/day	DIN 50014
Elongation at Break	450	%	DIN EN ISO 527
Hardness (after 28 d, specimen thickness = 6 mm)	50	Shore A	DIN ISO 7619-1
Minimum Layer Thickness	2	mm	-
Processing Temperature	5 - 30	°C	-
Service Temperature	- 40 to 90	°C	-
Short Term Temperature Resistance (30 min)	120	°C	-
Skin Formation Time	10	min	Kö-test method 100109
Squeezing Pressure	2 - 5	bar	-
Storage Temperature	15 - 25	°C	-
Tear Strength	21	N/mm	DIN ISO 34-1 Type C
Tensile Strength	3.1	mPa	DIN EN ISO 527

Storage & Handling

Storage Information

Körapop® 235 should be used within the shelf life specified on the packaging. The storage stability applies to material stored under appropriate conditions only (original unopened containers, recommended storage temperature).