BYK-1794
Data Sheet
Issue 08/2021
BYK-1794
Emissions-free and silicone-free polymer defoamer for solvent-borne, solvent-free, high-solid,
and UV systems.
Product Data
Composition Emissions-free
Polyolefin copolymer
Typical Properties
The values indicated in this data sheet describe typical properties and do not constitute specification limits.
Density (20 °C): 0.85 g/ml
Non-volatile matter (10 min., 150 °C): 100 %
Applications
Liquid Coatings
Special Features and Benefits
BYK-1794 is an emissions-free defoamer and air release agent in accordance with the AgBB (Committee for the
Health-Related Evaluation of Building Products) and the French standard. The additive is particularly recommended
for high-solids and solvent-free systems based on epoxy, PUR, polyaspartics, and UV systems. It is suitable
for pigmented and non-pigmented systems, has no impact on surface properties and takes effect both during
production and subsequent processing. The additive has 100 % solids and is VOC-free. BYK-1794 is used,
for example, in thick layer systems such as floor coatings. BYK-1794 is highly compatible with solvent-free coatings
for ballast tanks, tank interiors, etc. It is also extremely effective in 100 % polyurethane and polyaspartic acid ester
systems for pipelines and concrete coatings as well as other solvent-free coating systems for high-performance
protective coatings. In typical solvent-borne coil coating systems (e.g. polyester melamine or PUR), BYK-1794 is
very compatible and also provides good, spontaneous defoaming. Excellent results are achieved in UV systems
for wood and furniture coatings.
Recommended Use
Architectural coatings X
Coil coatings X
Protective coatings X
Wood and furniture coatings X
X especially recommended
BYK-1794
Data Sheet
Issue 08/2021
Recommended Levels
0.1-1 % additive (as supplied) based on the total formulation.
The above recommended levels can be used for orientation. Optimal levels are determined through a
series of laboratory tests.
Incorporation and Processing Instructions
BYK-1794 can be incorporated in the millbase as well as in the letdown product. If post-added, ensure
sufficient shear forces are applied.
Ambient Curing Systems
Special Features and Benefits
BYK-1794 is an emissions-free defoamer and air release agent in accordance with the AgBB (Committee
for the Health-Related Evaluation of Building Products) and the French standard. The additive is particularly
recommended for high-solids and solvent-free systems based on polyurethane. BYK-1794 is used, for
example, in thick layer systems such as floor coatings. It is suitable for pigmented systems, has no impact
on surface properties, and takes effect during production and subsequent processing. BYK-1794 has
100 % solids and is VOC-free.
Recommended Levels
0.1-1 % additive (as supplied) based on the total formulation.
The above recommended levels can be used for orientation. Optimal levels are determined through a
series of laboratory tests.
Incorporation and Processing Instructions
BYK-1794 can be incorporated in the millbase as well as in the letdown product. If post-added,
ensure sufficient shear forces are applied.
Printing Inks Industry
Special Features and Benefits
BYK-1794 is an emissions-free defoamer and air release agent. Excellent results can be achieved in
pigmented UV printing inks. The additive shows no impact on surface properties or transparency, and
takes effect both during production and in subsequent processing. BYK-1794 has 100 % solids and is
VOC-free.
Recommended Levels
0.1-1 % additive (as supplied) based upon the total formulation.
The above recommended levels can be used for orientation. Optimal levels are determined through a
series of laboratory tests.
Incorporation and Processing Instructions
BYK-1794 can be incorporated in the millbase as well as in the letdown product. If post-added,
ensure sufficient shear forces are applied.
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BYK-1794
Data Sheet
Issue 08/2021
Adhesives & Sealants
Special Features and Benefits
BYK-1794 is an emissions-free defoamer and air release agent in accordance with AgBB (Committee for
the Health-Related Evaluation of Building Products) and the French standard. The additive is particularly
recommended for solvent-free systems based on PUR and epoxy. BYK-1794 can be used, for example,
in laminating adhesives both for thin layers and thick layer systems. It is suitable for filled and unfilled
systems and has no impact on surface properties or transparency. BYK-1794 has 100 % solids and is
VOC-free.
Recommended Levels
0.1-1 % additive (as supplied) based upon the total formulation.
The above recommended levels can be used for orientation. Optimal levels are determined through a
series of laboratory tests.
Incorporation and Processing Instructions
BYK-1794 can be incorporated easily and takes effect both during production and processing.
3
BYK-1794
Data Sheet
Issue 08/2021
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Tel +49 281 670-0 PURE THIX®, RECYCLOBLEND®, RECYCLOBYK®, RECYCLOSSORB®, RECYCLOSTAB®, RHEOBYK®, RHEOCIN®, RHEOTIX®, SCONA®, SILBYK®,
Fax +49 281 65735 TIXOGEL®, VISCOBYK® and Y 25® are registered trademarks of the BYK group.
info@byk.com The information herein is based on our present knowledge and experience. The information merely describes the properties of our products but
www.byk.com no guarantee of properties in the legal sense shall be implied. We recommend testing our products as to their suitability for your envisaged purpose
prior to use. No warranties of any kind, either express or implied, including warranties of merchantability or fitness for a particular purpose, are made
regarding any products mentioned herein and data or information set forth, or that such products, data or information may be used without infringing
intellectual property rights of third parties. We reserve the right to make any changes according to technological progress or further developments.
This issue replaces all previous versions.
