Industrial coatings
with NECOWELTM alkyd emulsions

Excellent performance,first-class application andenvironmental compatibility.
Tailor-made for you.

As a specialist in very effective resin
emulsions for water-based industrial
coatings, ASK Chemicals offers a wide
range of solutions for this area. In addition
to excellent performance, highly efficientbinding agents from ASK Chemicals also
feature very good environmental compa­
tibility and top-class application properties.
This makes them ideal for switching fromsolvent-based to water-based systems
without having any compromise on performance.

Your benefits at a glance: ood product quality thanks to high performance
Gresin systems
 op - class customer service, tailor-madeT
modifications and refinement
 ur alkyd emulsions are based on natural oils
Oand feature a high percentage of renewable raw
materials.
 ECOWEL™ products are VOC-free and meet allNenvironmental-friendliness and occupational healthand safety requirements.

NECOWEL™
Primers and top coats
PU-modified alkyd emulsions are the first choice toformulate air - and forced drying industrial coatings.
PU-modified alkyds exhibit better drying propertiesthan standard alkyds. Due to the reaction isocyanate /alkyd, the molecular weight of alkyds increases andcreates improved physical drying properties. After thephysical drying (evaporation of water) the chemicaldrying (oxidative drying) takes place. Additionally
the PU-modification improves weather and waterstability. For primers on wood and metal cost

NECOWEL™
Baking enamels
For formulating baking enamels unmodified alkyd
emulsion in combination with aminoplasts likemelamine or urea /  formaldehyde resins are recommended. These enamels exhibit outstanding gloss
and low yellowing tendency in combination withgood chemical resistance. Unmodified alkyd emul­sions like NECOWEL™ 580 are widely used in com­bination with acrylates to improve flow characteristics and gloss.

NECOWEL™
2K PU-coatings
Water-based 2K PU-coatings tend to blister, if they
are applied in high film thickness.
The reason for this blistering is CO2 formation due tothe reaction of isocyanates with water. Coatings
based on NECOWEL™ are more tolerant compared to the state of the art and can be applied withhigh film thickness in one layer. The chemical resistance of 2K PU-coatings depends on its crosslinking density which is influenced by the OH-content of the polyol and the type ofefficient aromatic PU-modified alkyd emulsions
are preferred. They combine fast drying, good
corrosion resistance and good compa­tibility
with anticorrosive pigments. For top coats
aliphatic PU-modified alkyd emulsions arepreferred. They offer fast drying, outstanding
gloss, good UV resistance and very low yellowing tendency.

Benefits• Good corrosion resistance• High gloss finish• Good shear resistance and stability• Fast drying properties• Very low smell• VOC-free

Application areas
Machinery, agriculture  and construction
equipment, corrosion protection, wood coatings

Due to their excellent wetting properties andshear resistance NECOWEL™ 580 can also
be used as grinding resin for pigment pastes.

Benefits• Easy-to-formulate• Excellent wetting properties• Good chemical resistance• VOC-free

Application areas
Outside drum coatings, machinery,steel furnitureisocyanate. NECOWEL™ 700 is a polyester
polyol that offers high OH content for very
high chemical resistance, for example tographiti removers. As cross linking agent werecommend oligomeric isocyanates based on
HDI or IPDI. Especially hydrophilic modified
isocyanates are easy to incorporate.

Application areas
Railway coatings, trucks and public
transportation vehicles, construction,machinery, floor coatings

Benefits• Low blistering tendency• No yellowing• Brilliant gloss finish• Excellent chemical resistance• VOC-freeNECOWEL™ Properties and technical data:

NECOWEL™ – Primers
Product

Type of oil

Oil length

Properties

NECOWEL™ 585

Sunflower oil

20 %Fast drying at ambient and elevatedtemperatures

NECOWEL™ 586 N

Soy bean oil

50 %Good corrosion resistance and wetting
properties

NECOWEL™ – Top coats
Product

Type of oil

Oil length

Properties

NECOWEL™ 2329

Spec. fatty
acids

35 %

Drying at ambient and elevatedtemperatures, high gloss

NECOWEL™ 5088

Spec. fatty
acids

35 %

Fast drying at ambient and elevatedtemperatures, high gloss

NECOWELTM 5286

Spec. fatty
acids

35 %

Very fast drying at ambient and elevatedtemperatures

NECOWEL™ – Baking enamels
Product

Type of oil

Oil length

NECOWEL™ 580

Sunflower oil

20 %Properties
Outstanding gloss, low yellowing
tendency

NECOWEL™ – 2 Component PU-coatingsProduct

Type of oil

OH-content

Properties

NECOWEL™ 700

Polyester

5.5 %Weather and high chemical resistance,very high gloss, no yellowing

NECOWEL™ 720

Polyester

6.5 %Excellent hardness, very high weather andchemical resistance, high gloss, no yellowing

NECOWEL™ 750

Peanut oil

3.5 %Weather and chemical resistance,very high gloss

ASK Chemicals GmbH
Reisholzstraße 16 – 1840721 Hilden, Germany
Phone: +49 211 71 103-0
Fax:+49 211 71 103-35
specialties@ask-chemicals.com
www.specialties.ask-chemicals.com

This information is based on our current state of knowledge and does not represent assurance of the properties of the products described. We are only liable for
product-related advice and information within the scope of duties of disclosure included in collateral contractualagreements unless expressly agreed otherwise. (02 / 19)

Technical datasheets and guide formulations are provided on
our website www.specialties.ask-chemicals.com.