EBECRYL® 646

Identification & Functionality

Chemical Family

Acrylics & Acrylates,

Bisphenol Epoxy Resins,

Epoxy & Epoxy Derivatives

CASE Ingredients Functions

Binder & Resin,

Oligomer

Technologies

CASE Ingredients

Product Families

CASE Ingredients — Monomers & Intermediates

Oligomers

CASE Ingredients — Resins & Binders

Acrylics,

Epoxies

Features & Benefits

Labeling Claims

Low Carbon Footprint (PCF),

Solvent-free,

VOC-free

CASE Ingredients Features

Faster Cycle Time,

Good Pigment Wetting,

High Gloss,

Improved Chemical Resistance,

Improved Hardness,

Long Potlife,

Low Energy Consumption,

Low Temperature-Curing

Applications & Uses

Markets

Industrial,

Paints & Coatings,

Printing & Packaging

Applications

Paints & Coatings — Building & Construction

Wood Coatings & Finishes

Industrial — Leather & Textiles

Textile Manufacturing

Printing & Packaging — Packaging Coatings

Other Packaging Coatings,

Overprint Varnishes

Paints & Coatings — Packaging Coatings

Other Packaging Coatings,

Overprint Varnishes

Printing & Packaging — Printing & Inks

Gravure Printing,

Offset & Lithographic Printing,

Screen Printing

Application Method

Curtain Coating,

Gravure Coating,

Lithography,

Roller,

Screen Coating

Compatible Substrates & Surfaces

Wood

Cure Method

Radiation Cure

Coating Type

Radiation Curable Coating

Suggested Applications

Formulated UV/EB curable products containing EBECRYL® 646 may be applied by lithographic, screen, gravure, direct or reverse roll, and curtain coating methods.

EBECRYL® 646 is recommended for use in :

• Overprint varnishes
• Lithographic and screen inks
• Coatings for paper, paperboard, wood, chipboard and rigidplastics
• Paper upgrading
• Fast cure response
• Laminating adhesives
• Wood sealers and top coats.

Properties

Physical Form

Liquid

Appearance

Clear liquid

Physical Properties

	Value	Units	Test Method / Conditions
Density	1.15	g/cm³	—
Functionality (Theoretical)	2	—	—
Molecular Weight (Theoretical)	approx. 500	—	—
MPTA Content	30	% wt	—
Polymer Solids Content	70	% wt	—

Typical Properties

	Value	Units	Test Method / Conditions
Acid Value	max. 2	mgKOH/g	—
Color	max. 3	Gardner	—
Hopler Viscosity (25°C)	approx. 25000	mPa.s	—

Safety & Health

Precaution

The following is a summary of the precautions to be taken when handling this product. Please refer to the Safety Data Sheet for further details.The toxicological properties of this material have not been fully determined. Products of this type can be expected to be eye and skin irritant and have the potential to cause sensitization or other allergic responses. Appropriate precautions should be taken to avoid eye and skin contact and to avoid inhalation of the aerosols or vapors. Consult the relevant Safety Data Sheet for appropriate handling procedures and protective equipment prior to using this or any other material referred to in this bulletin.See Safety Data Sheet for emergency and first aid procedures.

Packaging & Availability

Regional Availability

• Africa
• Europe
• Middle East

Storage & Handling

Shelf Life

2 years

Storage and Handling

Care should be taken not to expose radiation curable products to temperatures exceeding 40°C for prolonged periods or to direct sunlight. This might causeuncontrollable polymerization of the product with generation of heat. Storage and handling should be in stainless steel, amber glass, amber polyethylene or baked phenolic lined containers. Do not store this material under an oxygen free atmosphere. Use dry air to displace material removed from the container. This material should not be stored for more than 2 years.