Körapop 240-2K

Identification & Functionality

Chemical Family

Silanes

Product Type

2K (2 component) Adhesive,

2K (2 component) Sealant,

Reactive Adhesive,

Reactive Sealant

Technologies

Adhesives & Sealants

Product Families

Adhesives & Sealants — Bonding Technology

2K Liquid Reactive Adhesives

Adhesives & Sealants — Sealing Technology

Reactive Sealants

Features & Benefits

Ready-to-Use Product Features

Excellent Elasticity,

Excellent Moisture Resistance,

Excellent Strength,

Exceptional UV Resistance,

Good Cold Resistance,

Good Flexibility,

Good Sagging Resistance,

Good Weather Stability,

Heat Resistance,

High Flexibility,

Improved Ageing Resistance,

Paintable,

UV Resistant

Applications & Uses

Markets

Building & Construction,

Industrial

Applications

Building & Construction — Building Materials

Construction Adhesives

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts

Application Area

HVAC Applications,

Metalworking Equipment,

Travel Trailers

Compatible Substrates & Surfaces

Aluminum Alloys,

Glass,

Metal,

Painted Surfaces,

Plastics,

Steel,

Wood

Cure Method

Chemical Cure

Application Information

Applications	Fields of Application	Automotive
		Construction
		Industrial assembly
		Transportation
Processing	Suitable Substrates	Various galvanized steels
		Various aluminum alloys
		Various steel alloys
		Duroplastics
		Thermoplastics (except PE, PP, PTFE)
		Various composite materials (e.g. CFRP, GFRP)
		Glass
		Mineralic materials
		Wood
		Coated surfaces
	Consistency	Non-sagging Pasty
	Surface Requirements	Clean
		Free of grease
	Surface Cleaning	Körasolv GL
		Körasolv PU
		Körasolv WL
	Adhesion Promoter (absorbing surface)	Körabond HG 74 E
	Adhesion Promoter (non absorbing surface)	Körabond HG 83
	Application Method	Using side-by-side cartridge with static mixer via two part mixing and metering systems
	Product Overpaintability	Wet-in-wet (depending on paint)
	Product is free of	Solvents
Cleaning	Cleaner for Tools	Körasolv GL
		Körasolv PU
Hints	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.

Preparation

For some substrates the use of mechanical pretreatment and/or cleaner or primer is necessary to achieve good adhesion.

Processing

Low temperatures can cause a temporary increase in viscosity resulting in reduced extrusion and slower curing rates.

Cleaning Instructions

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

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.

Properties

Physical Form

Paste

Physical Properties

	Value	Units	Test Method / Conditions
Glass Transition Temperature	-64.0	°C	DIN EN ISO 6721-1

Cured Properties

	Value	Units	Test Method / Conditions
Pot Life (with Köracur 310 N)	10.0	min	—
Pot Life (with Köracur 310 L)	16.0	min	—
Pot Life (with Köracur 310 SL)	26.0	min	—
Change in Volume	-3.0	%	DIN EN ISO 10563
Hardness (after 14d)	54.0	—	DIN ISO 7619-1, Shore A
Tensile Strength	2.8	MPa	DIN EN ISO 527
Elongation at Break	350.0	%	DIN EN ISO 527
Lap Shear Strength (substrates: aluminum/aluminum)	3.0	MPa	DIN EN 1465
Tear Strength	20.0	N/mm	ASTM D624

Processing Parameters

	Value	Units	Test Method / Conditions
Mixing Ratio (Part A:Part B, by volume)	10:1	—	—
Processing Temperature	5 - 35	°C	—
Recommended Minimum Layer Thickness	2.0	mm	—

Recommended Operating Conditions

	Value	Units	Test Method / Conditions
Service Temperature	- 60 - 90	°C	—
Short-Term Temperature Resistance (60 min)	150.0	°C	—

Physical Properties

Part A Körapop 240

Physical Properties
Density	1.4 g/cm3	DIN EN 542
Solid-content by weight	100%
Processing Guidelines and Parameters
Storage Temperature	5 °C to 25 °C

 

Part B Köracur 310 N

Physical Properties
Density	1.49 g/cm3	DIN EN 542
Processing Guidelines and Parameters
Storage Temperature	15 °C to 25 °C

 

Part B Köracur 310 L

Physical Properties
Density	1.49 g/cm3	DIN EN 542
Processing Guidelines and Parameters
Storage Temperature	15 °C to 25 °C

 

Part B Köracur 310 SL

 

Physical Properties
Density	1.49 g/cm3	DIN EN 542
Processing Guidelines and Parameters
Storage Temperature	15 °C to 25 °C

Technical Details & Test Data

Curing of Körapop 240-2K

Curing of Körapop 240-2K​​​​​​​ with different boosters, build up of Shore A

Packaging & Availability

Country Availability

Australia,

Canada,

China (Mainland),

Japan,

Korea,

Malaysia,

New Zealand,

Philippines,

Switzerland,

Taiwan,

Turkey,

USA

Regional Availability

• Asia Pacific (Excluding Russia)
• Australia
• Canada
• China
• Europe (Excluding Russia)
• Japan
• Korea
• Malaysia
• North America
• Philippines
• USA

Storage & Handling

Storage Conditions

Körapop 240-2K should be used within the shelf life specified on the packaging. The storage stability only applies to material stored under appropriate conditions (original unopened containers, recommended storage temperature).