Covestro Bayhydrol® VP LS 2227/1 polyester polyacrylate dispersion

type polyester/polyester Acrylate Dispersion

Supply Form in proportion to approx. 48.9:8:1.1 in water/2-butoxyethanol and neutralizer dimethylethanolamine about 42%

Purpose

For the preparation of industrial baking varnishes, which have high whiteness when exposed to high temperature degree of retention. It can also be used to prepare two-component polyurethane primers and topcoats for plastics.

Products Specifications

Other Data

dissolve Sexuality/Dilution

Bayhydrol® VP LS 2227/1 can be diluted in water. It can be miscible with glycol ether and glycol ether ester in a certain proportion.

Phase Capacitance

Suitable industrial baking varnish co-reactants are: hexamethoxymethylmelamine resin, Partially etherified melamine resins such as Maprenal® MF 904 and 915, Cymel® 303, 325 and 327, water-based aliphatic polyisocyanates such as Bayhydur® BL 5140 and BL 5235.
We recommend using Bayhydur® VP LS 2306 and Bayhydur 3100 as co-reactants when preparing primers and topcoats for plastics.

Features /application

The viscosity of the product is largely dependent on the pH. During storage, the pH may drop, as may viscosity. Adding a small amount of 10% aqueous dimethylethanolamine solution can restore the viscosity to its original value.
Industrial paint:
For optimum pigment wetting, the pH can be adjusted to 8.5 to 9 with a 10% aqueous solution of dimethylethanolamine. Details can be obtained from the associated recommended formulations.
Bayhydrol VP LS 2227/1 is blended with melamine resins for the preparation of baking topcoats with a co-solvent content of less than 5% at the application viscosity. The paint was dried at 120°C for 30 minutes. The ratio of Bayhydrol VP LS 2227/1 to amino resin (calculated on resin solids) is 80:20. There are many different amino resins available on the market, but compatibility should be tested first.
Since the product contains hydroxyl groups, it can also be used as a co-reactant for waterborne aliphatic polyisocyanates such as Bayhydur BL 5140 and BL 5235. The ratio of OH to NCO should be 1:1.
In order to achieve good storage stability of coatings containing Bayhydrol VP LS 2227/1, the pH of the coating should be adjusted between 8.5 and 9 after preparation.
Coatings for plastics:
For coatings on plastics we recommend Bayhydrol VP LS 2306 and/or Bayhydur 3100. The ratio of OH to NCO should be 1:1.5.
Bayhydrol VP LS 2227/1 has good pigment wetting and high shear stability. Ball mills and sand mills are suitable grinding equipment. Even grinding temperatures of 50°C do not have a negative effect on the quality of the paint.
Since there are many different pigments to choose from, their storage stability should be tested. Kerr-McGee’s rutile titanium dioxide pigments, especially Tronox® R-KB-4, are particularly suitable.

Cleaning Preparation and construction equipment Can be cleaned with water, alkaline cleaner or isopropyl alcohol

Save

This product does not contain fungicides.
Stored between 5°C and 23°C in an airtight container, this product is stable for at least 6 months.
The product freezes at 0°C and may be destroyed. Therefore, product storage should avoid frost hazard.

Security

Hazard Identification
This product is not classified as dangerous according to European Commission Directive 67/548/EEC or 1999/45/EC.
1-Butoxyethanol that penetrates the skin can be hazardous.
The Safety Data Sheet (304232) must be observed which includes information on labelling, transport and storage as well as product handling, product safety and ecology.

Note

This product is experimental and we do not yet have extensive experience with it. Therefore, the company does not make any guarantees about the performance of the product in operation and use.

For storage stability, the pH of the coating should be adjusted between 8.5 and 9 after preparation.
Coatings for plastics:
For coatings on plastics we recommend Bayhydrol VP LS 2306 and/or Bayhydur 3100. The ratio of OH to NCO should be 1:1.5.
Bayhydrol VP LS 2227/1 has good pigment wetting and high shear stability. Ball mills and sand mills are suitable grinding equipment. Even grinding temperatures of 50°C do not have a negative effect on the quality of the paint.
Since there are many different pigments to choose from, their storage stability should be tested. Kerr-McGee’s rutile titanium dioxide pigments, especially Tronox® R-KB-4, are particularly suitable.

Cleaning Preparation and construction equipment Can be cleaned with water, alkaline cleaner or isopropyl alcohol

Save

This product does not contain fungicides.
Stored between 5°C and 23°C in an airtight container, this product is stable for at least 6 months.
The product freezes at 0°C and may be destroyed. Therefore, product storage should avoid frost hazard.

Security

Hazard Identification
This product is not classified as dangerous according to European Commission Directive 67/548/EEC or 1999/45/EC.
1-Butoxyethanol that penetrates the skin can be hazardous.
The Safety Data Sheet (304232) must be observed which includes information on labelling, transport and storage as well as product handling, product safety and ecology.

Note

This product is experimental and we do not yet have extensive experience with it. Therefore, the company does not make any guarantees about the performance of the product in operation and use.