Körapur® 940 Marine

Identification & Functionality

Chemical Family

Polyurethanes (PU)

Product Type

1K (1 component) Adhesive,

1K (1 component) Sealant,

Reactive Adhesive,

Reactive Sealant

Technologies

Adhesives & Sealants

Product Families

Adhesives & Sealants — Bonding Technology

1K Liquid Reactive Adhesives

Adhesives & Sealants — Sealing Technology

Reactive Sealants

Features & Benefits

Ready-to-Use Product Features

Excellent Elasticity,

Excellent Humidity Resistance,

Excellent Strength,

Excellent Substrate Adhesion,

Fast Curing,

Good Sagging Resistance,

Good Weather Stability,

High Elongation,

Temperature Resistance

Applications & Uses

Markets

Building & Construction

Applications

Building & Construction — Building Materials

Construction Adhesives

Application Area

Decking,

Hulls,

Marine Applications

Application Method

Gun

Compatible Substrates & Surfaces

Aluminum,

Metal,

Painted Surfaces,

Plastics,

Wood

Cure Method

Moisture Cure

Processing

Processing temperature: 5°C to 35°C

Preparation:

• The surfaces to be bonded must be clean, dry and free from dust and grease. For cleaning we recommend Körasolv PU. In the case of powder coated substrates, Körasolv WL should be used.
• To increase bond strength of non-porous substrates such as glass, glass-fiber reinforced plastics, gel coat, aluminum, stainless steel, etc. we recommend the use of Körabond HG 81. For porous substrates such as wood, Körabond HG 74 E is recommended. For certain plastics such as ABS or PVC we suggest the use of Körabond HG 77.

Bonding:

The thickness of the layer depends on the expected mechanical movement. Join the material to be bonded within 45 minutes after application. Due to the low initial tack, we re commend mechanical fixing until a complete cure is obtained. The cure time is dependent on temperature, humidity and the dimensions of the joint. The absolut moisture content depends on the air temperature. Therefore, we recommend the use of our hardener Köracur 110. Körapur 940 Marine will cure unaffected by water when using hardener Köracur 110.

Cleaning:

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

Properties

Technical Data

	Value	Units	Test Method / Conditions
Density	1.2	g/cm³	—
Skin Formation Time	70 - 90	min	DIN 50 014, NC 23/50-2
Curing Time (on the first day)	3.0	mm	DIN 50 014, NC 23/50-2
Change in Volume	7.0	%	DIN 52 451
Hardness	55.0	—	DIN 53 505, Shore A
Elongation at Break	400.0	%	DIN 53 504
Tensile Strength	4.0	N/mm²	DIN 53 504
Lap Shear Strength (at a layer thickness of 2 mm)	3.0	N/mm²	DIN 53283
Tear Resistance	7.0	N/mm	DIN 53 515

Regulatory & Compliance

Certifications & Compliance

International Maritime Organization (IMO) Compliant

Safety & Health

Precautions

When using Körapur 940 Marine, avoid direct skin contact of the uncured material. Wear suitable personal protective equipment (chemical resistant gloves/clothing).

Packaging & Availability

Packaging Type

Cartridges,

Drums,

Sachets

Regional Availability

• North America

Packaging Information

• 230 kg Drums
• 600 ml Sachets (carton a 12 pcs.)
• 310 ml Cartridges (carton a 12 pcs.)

Storage & Handling

Shelf Life

6 Months, 9 Months (Cartridges), 9 Months (Sachets)

Storage Condition

Do not store at temperatures above 25°C for longer periods of time.