Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
Applications & Uses
- Markets
- Applications
- Compatible Substrates & Surfaces
- Coating Type
- Recommended Uses & Known Applications
Uses
As a binder in the formulation of stoving topcoats and primers.
Applications
- SETAQUA® B E 356 is an oil-free polyester with extremely good resistance to hydrolysis which is already neutralized with dimethyl ethanol amine. It is thinned with water for application. Combined with hexamethoxymethyl melamine resins (HMMM) and partially methyl-etherified melamine resins.
- SETAQUA® B E 356 can be used to formulate water-thinnable stoving top coats and primers. Combination with HMMM resins yields highly flexible primers and top coats. SETAQUA® B E 356 should be particularly suitable for dip primers applied beneath powder coatings. If SETAQUA® B E 356 is combined with partially methyl-etherified amino resins, stoving systems can be formulated which cure in 30 minutes at 120°C. As a rule, the ratio of SETAQUA® B E 356/amino resin is between 85 : 15 and 75 : 25, calculated on the solid resin. Given the many different amino resins on the market, compatibility should always be tested.
- Coatings based on SETAQUA® B E 356 will remain stable at room temperature for at least 6 months. It should be ensured that the pH is adjusted to 8.4 to 8.8 after formulation.
- Depending on the reactivity of the amino resin and the pigment/extender combination used, the viscosity of the coatings and primers may increase slightly after prolonged storage at room temperature. This increase may be minimized by checking the pH and adjusting it as necessary to 8.4 to 8.8.
- Formulation Guidelines
- SETAQUA® B E 356 is characterized by its good pigment wetting properties and high shear stability. Bead and sand mills have proved suitable for grinding. The pigments and extenders are ground in some of the SETAQUA® B E 356 and deionized water to ensure the necessary dispersion viscosity. Because of the excellent shear stability, dispersion temperatures of up to 50°C have no detrimental effect. The pigments and extenders used should have the lowest possible water-soluble content.
- Given the many different pigments and extenders available, the storage stability should always be tested. All rutile titanium dioxides from the Tronox® range, especially Tronox R-KB-4(1), are suitable. K-White® 140 W(2) has proved suitable as an anticorrosion pigment for these formulations. To ensure the rapid breakdown of foam during dispersion, a suitable defoamer, e.g. Dehydran® 671(3), must be added. Flow promoters such as BYK® -301(4) can be added to spray and dip coatings to improve their flow properties.
(1) Tronox Pigments GmbH, Krefeld, Germany
(2) Lehman & Voss & Co., Hamburg, Germany
(3) Henkel KGaA, Düsseldorf, Germany
(4) Byk-Chemie GmbH, Wesel, Germany
Properties
- Appearance
- Clear To Slightly Cloudy
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Color | max. 100 | Hazen | — |
| Density (20°C) | approx. 1.0 | g/ml | — |
| Flash Point (Pensky-Martens) | 80 - 100 | °C | — |
| Non-Volatile Content (1g; 1h; 125°C) | 56 ± 2 | % | — |
| Acid Value | 23.5 ± 1.5 | mg KOH/g | — |
| pH Value (10% solution with water) | 8.55 ± 0.25 | — | — |
| Viscosity (23°C) | 9,500 ± 1,500 | mPa.s | — |
Packaging & Availability
- Regional Availability
Storage & Handling
- Shelf Life
- 270 Days
- Storage and Handling
- When stored in originally sealed containers at temperatures not exceeding 30°C, the product will remain stable for at least 270 days.
- General information: The product is sensitive to frost. Freezing will damage the product irreversibly. Prolonged storage and storage at higher temperatures may result in a decrease of viscosity and/or an increase of average particle size, possibly resulting in sedimentation or coagulation. Contamination with certain bacteria, fungi or algae may render the product unusable.