BYK-1640 Mineral Oil and Silicone-Free Defoamer for Aqueous Coatings

Mineral oil-based defoamers are widely used, mainly in applications in which price is a key criteria. Negative side effects such as separation tendency, odor, environmental aspects and the often lacking approvals for direct food contact mean that the market is looking for affordable alternatives.

Today, polymeric defoamers are the standard key technology to fulfill the strict regulatory requirements.

Excellent Price/Performance and Environmentally Sound Defoamers

Mineral oil

Native oil

Polymeric chemistry

Environmentally friendly

BYK-1640 is a polymeric defoamer demonstrating new technology of using polyamides as hydrophobic particles.

BYK-1640 Excellent in Price/Performance Ratio

Co

st

Silicone chemistry

Mineral oil

Performance

Polymeric chemistry e.g. BYK-1640

Fatty alcohol derivates

BYK-1640 Product Properties

Chemical Composition Defoamer compound based on polyamide particles and hyper-branched polymers

Non volatile matter 62 %

Solvent Water

Defoamer type Emulsion

Hydrophobic particles Polyamide – new patented technology

APEO- & Emissions-free Yes

VOC-free <1500ppm (Greenability HS GC)

FDA 175.105 Adhesives

175.300 Polymeric and resinous coatings

Recommended Levels

additive (as supplied)

based upon formulation:

0.1% - 05%

in exceptional cases up to 0.8 %

BYK-1640 Benefits • Versatile defoamer with excellent cost/performance ratio

• Mineral oil- and silicone-free, odorless

• Especially recommended for waterborne interior and exterior emulsion paints (PVC range 30-85)

• Easy to incorporate

• No negative influence on color-acceptance

• Emission-free and suitable for direct food contact

BYK-1640 Applications

recommended

suitable

Architectural Coatings

Construction

Industry Adhesives

Protective

Coatings

BYK-1640

Suitable binder systems are:

- Styrene acrylics

- VAE‘s

- VeoVa

- Acrylic copolymers

- Polyurethane dispersions

Paper

Coatings

Can

Coatings

Printing

Inks

BYK-1640

0

1

2

3

4

5

6

Macro Micro Macro Micro Macro Micro Macro Micro

Foam Foam Foam Foam

VAE PVC 31% Styrene Acrylic PVC 61% VeoVa PVC 53% Styrene Acrylic PVC 71

Rat

ing

BYK-1640

Mineral oil with silicone

Silicone emulsion

Polymer emulsion

Polymer

BYK-1640 in Comparison with Different Defoamers in Various Resins and PVC-Ranges

1 = no foam

5 = severe foam Incorporation: 0.3% Defoamer post addition, 3 min @ 2 m/s

BYK-1640 Comparison in the Grind

0.3 % Mineral Oil Defoamer 0.3% BYK-1640

System: Resin free titanium dioxide slurry

BYK-1640 Excellent Defoaming Action During Application

0.3 % Mineral Oil Defoamer 0.3% BYK-1640

System: Emulsion Paint (PVC 31) based on vinyl acetate ethylene (VAE)

Aqueous Can Coatings Varnish: Side by Side Application: Not Mixed – High Speed Mixed

0.3% BYK-1640

0.3% Silicone defoamer

Control

Foamtest: high speed mixing

Foamtest: high speed mixing

Foamtest: high speed mixing

Strong foam stabilization during mixing

Incompatible defoamer

Good defoaming and compatibility with BYK-1640

Results BYK-1640 Applications

Target applications

• Process defoamer during production

• Modern alternative to mineral oil defoamers

For

• Filled Wood adhesives

• Paper and board applications

• Flooring and Carpet adhesives

For systems based on

• Acrylic copolymers for Flooring adhesives

• Polyurethane dispersions for thermally activated adhesives for furniture, automotive, shoe and construction industries

• EVA dispersions for paper & board, converting

• Acrylic copolymers for PSA application

BYK-1640 in a Furniture, Automotive, Shoe and Construction Adhesive

0

100

200

300

400

500

600

no defoamer BYK-1640 BYK-014 Mineral Oil 1 Mineral Oil 2

Foam

Vo

lum

e in

ml

PU Dispersion

after 1 day after 1 week 40°C

BYK-1640 in an Adhesive for Paper and Packagings

0

50

100

150

200

250

300

350

no defoamer BYK-1640 BYK-014 Mineral Oil 1 Mineral Oil 2

Foam

Vo

lum

e in

ml

EVA Dispersion

after 1 day after 1 week 40°C

Excellent Defoaming Action in Emulsion based Plaster

Use Level:

0.3% Defoamer

on total

05.11.2014, Seite 14, Carsten Nagel, BYK, Entschäumer

0

0.2

0.4

0.6

0.8

1

1.2

1.4

W/O Defoamer BYK-1640 Mineral Oil w/osilicone

Mineral Oilwith silicone

Polymer 1 Polymer 2

Desit

y [

g/m

l] direct

after 1 d

ANTI-TERRA®, BYK®, BYK®-DYNWET®, BYK®-SILCLEAN®, BYKANOL®,

BYKETOL®, BYKJET®, BYKOPLAST®, BYKUMEN®, CARBOBYK®, DISPERBYK®,

DISPERPLAST®, LACTIMON®, NANOBYK®, PAPERBYK®, SILBYK®,

VISCOBYK®, and Greenability® are registered trademarks of BYK-Chemie.

ACTAL®, ADJUST®, ADVITROL®, ASTRABEN®, BENTOLITE®, CLAYTONE®,

CLOISITE®, FULACOLOR®, FULCAT®, GARAMITE®, GELWHITE®, LAPONITE®,

MINERAL COLLOID®, OPTIBENT®, OPTIFLO®, OPTIGEL®, PURE THIX®,

RHEOCIN®, RHEOTIX®, RIC-SYN®, TIXOGEL®, and VISCOSEAL® are registered

trademarks of BYK Additives.

AQUACER®, AQUAMAT®, AQUATIX®, CERACOL®, CERAFAK®, CERAFLOUR®,

CERAMAT®, CERATIX®, HORDAMER®, and MINERPOL® are registered

trademarks of BYK-Cera.

SCONA® is a registered trademark of BYK Kometra.

The information herein is based on our present knowledge and experience. The information

merely describes the properties of our products but 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.