Körapop 225-2K

Identification

Chemical Family

Silanes

GBU

EA

RTU Product Type

2K (2 component) Sealant,

2K (2 component) Adhesive,

Reactive Sealant,

Reactive Adhesive

Categories

Markets → Building & Construction → Applications → Building Materials → Construction Adhesives

Markets → Industrial → Applications → Chemical & Industrial Manufacturing → Equipment & Parts

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → 2K Liquid Reactive Adhesives

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

Application Information

Cure Method

Chemical Cure

Applications

Application Area

Travel Trailers,

Metalworking Equipment,

HVAC Applications

Compatible Substrates & Surfaces

Glass,

Metal,

Plastics,

Wood,

Steel,

Painted Surfaces,

Aluminum Alloys

Applications & Uses

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.

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.

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.

Features

Ready-to-Use Product Features

Excellent Elasticity,

Excellent Moisture Resistance,

Excellent Strength,

Exceptional UV Resistance,

Good Flexibility,

Good Sagging Resistance,

Good Weather Stability,

High Flexibility,

Paintable,

UV Resistant,

Improved Ageing Resistance,

Good 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

Physical Properties

Physical Form

Paste

Properties

Strain at Break:

450 %

Tear Strength:

18 kN/m

Tensile Strength:

2.6 MPa

Physical Properties

Part A Körapop 225

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

Cured Properties

	Value	Units	Test Method / Conditions
Change in Volume	-3.0	%	DIN EN ISO 10563
Elongation at Break	450.0	%	DIN EN ISO 527
Hardness (after 14d)	36.0	-	DIN ISO 7619-1, Shore A
Pot Life (with Köracur 310 L)	40.0	min	-
Pot Life (with Köracur 310 N)	20.0	min	-
Pot Life (with Köracur 310 SL)	60.0	min	-
Tear Strength	18.0	N/mm	ASTM D624
Tensile Strength	2.6	MPa	DIN EN ISO 527

Recommended Operating Conditions

	Value	Units	Test Method / Conditions
Service Temperature	- 60 - 90	°C	-
Short-Term Temperature Resistance (60 min)	120.0	°C	-
Solid Content	100	Wt(%)	-

Physical Properties

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

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	-

Storage & Handling

Storage Conditions

Körapop 225-2K 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).

Technical Details & Test Data

Curing of Körapop 225-2K

Curing of Körapop 225-2K with different boosters, build up of Shore A