type Contains blocked isocyanate Radical Polyurethane Dispersion
Supply Form in water/ The concentration in N-methylpyrrolidone/dimethylethanolamine is about 39.5%, and the ratio of the three is 53.2: 2.5: 4.8.
Purpose
Mixed with Bayhydrol® Hydroxypolyols to produce water dilutable sunfast sheets Component polyurethane lacquer. At the same time, it can also be used as an additive in traditional water-based baking systems to improve its flexibility, impact resistance and adhesion.
Products Specifications
| Features | Number | Units of measure | Test method |
| Viscosity, 23 °C D is about 10 s-1 |
8,000 ± 4,000 | mPa·s | DIN EN ISO 3219/A.3 |
| Content of non-volatile components 1 g / 1 hour / 105°C |
39.5 ±2 | % | DIN EN ISO 3251 |
| pH value 1:3 in deionized water |
9.5 ± 0.5 | DIN ISO 976 |
Other Data
| Features | Number | Units of measure | Test method |
| equivalent | about 955 | ||
| Closed NCO content (Theoretical value) |
about 4.4 | % | |
| density, 20 °C | about 1.1 | g/ml | DIN EN ISO 2811 |
| appearance | Red brown, transparent/turbid |
dissolve Sexuality/Dilution
Bayhydur® BL 5140 is compatible with water, alcohols, glycols and glycol ethers Make a dilution. However the storage stability of the solution has to be tested.
Phase Capacitance
Crosslinking reaction with equivalent polyols, Bayhydur® BL 5140 can be combined with Bayhydrol® Compatible with D 155, D 270 and FT 145. Mixtures must be tested for compatibility prior to preparation.
Features /application
Bayhydur® BL 5140 is formulated as a water dilutable lightfast one-component polyurethane The baking system is developed with a curing agent. Coating films based on Bayhydur® BL 5140 can achieve the effects of traditional two-component polyurethane coatings by adjusting the degree of crosslinking and selecting polyols. Its fields of application include automotive OEM coatings (impact primers, surfacers, topcoats) and high-quality industrial baking finishes such as coatings for electrical equipment, small components and automotive components. Bayhydur® BL 5140 can also be used in the preparation of fancy can coatings. Bayhydrol® D 155 is recommended as co-reactant to formulate coatings with high flexibility and hardness and excellent resistance to biocidal treatments. By selecting suitable co-reactive components, it is possible to achieve a weatherability matching that of the solvent-borne baking polyurethanes Desmodur® BL 3175 or 4265.
baked Baking Conditions
The following table shows Bayhydur® BL 5140 and water dilutable polyacrylate Necessary baking conditions for full crosslinking. Depending on bake temperature/time and the hydroxy polyol used, slight to severe thermal yellowing may occur.
Save
Store in the original sealed container at a temperature of 5 to 23°C When used, Bayhydur® BL 5140 has a shelf life of at least 3 months. Viscosity increases gradually during storage. However, the original value can be restored after dilution and the product quality will not be affected.
Bayhydur® BL 5140 freezes below 0°C and may damage product quality. Therefore, avoid freezing during storage.
Security
Hazard Identification
Harmful if swallowed. There is a lack of evidence that it causes cancer. Harmful to aquatic life, may cause long-term adverse effects in the aquatic environment. Contains 2-butanone oxime, which may cause allergies.
The product safety data sheet should be strictly followed. It includes relevant information such as labeling, transportation and storage, as well as relevant information on product use, product safety and ecology.
�Relevant information on safety and ecology.
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