Covestro represents that, for a period of 6 months (180 days) following the day of shipment as stated in the respective transport documents, the product will meet the specifications or values set forth in chapter "Specification" above, what ever is applicable, provided that the product is stored in full compliance with the storage conditions set forth in and referenced under chapter "storage" above and is otherwise handled appropriately. The lapse of the 6 months (180 days) period does not necessarily mean that the product no longer meets specifications or the set values. However, prior to using said product, Covestro recommends to test such a product if it still meets the specifications or the set values. Covestro does not make any representation regarding the product after the lapse of the 6 months (180 days) period and Covestro shall not be responsible or liable in any way for the product failing to meet specifications or the set values after the lapse of the 6 months (180 days) period.
Product description
Bayhydrol® UH 2889 is an aliphatic polyurethane resin dispersion which is suitable for decorative peelable coatings applications in the automotive aftermarket. It is also suitable for protective coatings for transportationand construction applications
Applications
On demand customization is made possible with Bayhydrol® UH 2889 for decorative and protective peelable coating systems. For the automotive aftermarket, key properties include superior gasoline resistance, improved scratch resistance, and greater efficiency. Heavy duty properties combined with a safe and easy removal process allows users to customize the appearance of their vehicle. Other important features include easy peelability over a wide variety of substrates (i.e., automotive OEM and refinish coatings, various plastic substrates, polished aluminum and chrome) even after exposure to elevated temperatures. Bayhydrol® UH 2889 allows for the ability to formulate higher solids coatings which reduces the number of coats needed to reach optimum peelability.
Other applications for peelable coatings formulated with Bayhydrol® UH 2889 could include protective applications such as, automotive OEM delivery wraps, transportation, architecture, furniture and construction.
Form supplied
Form supplied is approximately 40% in water, neutralized with dimethylethanol amine, approximately 59.5 : 0.5.
Specification
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Non-volatile content | 39 - 41 | % | M020 - ISO 3251 | |
| Dynamic viscosity | 23 °C | < 150 | mPa·s | M014 - ISO 3219/A.3 |
| pH-value | 20 °C | 6.5 - 7.5 | M022 - ISO 976 |
Typical Values
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Density | at 20 °C | approx. 1.05 | g/ml | DIN EN ISO 2811 |
| Minimum film forming temperature (MFT) | < 5 | °C | DIN ISO 2115 | |
| Tensile strength | approx. 4800 | psi | ||
| Elongation at break | approx. 425 | % |
Compatibility
Bayhydrol® UH 2889 is generally compatible with water-reducible polyesters and some acrylic dispersions. Given the many resins available on the market, compatibility testing is recommended.
Storage
Bayhydrol® UH 2889 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. Recommended storage temperature is 5° to 23°C.
Storage time
Health and Safety Information
Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. Information is available in several forms, e.g., in particular in the currently valid safety data sheets and product labels. For further information contact your Covestro representative.
Disclaimer
General
The manner in which you use our products, technical assistance and information (whether verbal, written or by way of production evaluations), including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products to determine suitability for your processing and intended uses. Your analysis must at least include testing to determine suitability from a technical, health, safety, and environmental and regulatory standpoint. Such testing has not necessarily been done by Covestro, and Covestro has not obtained any approvals or licenses for a particular use or application of the product.
Unless we otherwise agree in writing, all products are sold strictly pursuant to the terms of our standard conditions of sale which are available upon request.
All information and including technical assistance is given without warranty or guarantee and is subject to change without notice. It is expressly understood and agreed by you that you assume and hereby expressly release indemnify us and hold us harmless from all liability, in tort, contract or otherwise, incurred in connection with the use of our products, technical assistance, and information. Any statement or recommendation not contained herein is unauthorized and shall not bind us. Nothing herein shall be construed as a recommendation to use any product in conflict with any claim of any patent relative to any material or its use. No license is implied or in fact granted under the claims of any patent.
Non Medical and non Food Contact
This product is not designated for the manufacture of a medical device or of intermediate products for medical devices (1). This product is also not designated for other specifically regulated applications (e.g. including cosmetics, plant protection, fertilisers, plant strengtheners, food processing, food contact and others). If the intended use of the product is for the manufacture of a medical device or of intermediate products for medical devices or for other specifically regulated applications Covestro must be contacted in advance to provide its agreement to sell such product for such purpose. Nonetheless, any determination as to whether a product is appropriate for use in a medical device or intermediate products for medical devices, for Food Contact products or cosmetic applications must be made solely by the purchaser of the product without relying upon any representations by Covestro.
1) Please see the Guidance on Use of Covestro Products in a Medical Application document.
Sample
Any samples provided by Covestro are for testing purposes only and not for commercial use.
Typical value
These values are typical values only. Unless explicitly agreed in written form, they do not constitute a binding material specification or warranted values
Contact
Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .
