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.
Product description
Bayhydrol UA 2961 is a waterborne aliphatic polyurethane/acrylate.
Applications
Bayhydrol UA 2961 can be used in the formulation of ambient-cure or bake coatings for a wide range of rigid and flexible substrates such as wood, metal, fiberglass, vinyl, and other plastic substrates. This product has been developed to exhibit a combination of film hardness, flexibility, good water and abrasion resistance, and excellent chemical and solvent resistance. As with any product, use of Bayhydrol UA 2961 in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.
Form supplied
Approximately 43% in water
Specification
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Viscosity | at 25°C | < 100 | mPa∙s | |
| Non-volatile content | (1 g/1 h/125°C) | 41,5 - 45 | % | |
| pH | (supply form) | 7,4 - 8,5 |
Typical Values
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Appearance | Milky white | |||
| Weight per Gallon | 25° C | 8,9 | lb/gal |
Storage
Bayhydrol UA 2961 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. In order to maintain product uniformity, protect from freezing. The containers must be tightly closed to prevent the evaporation of water and the introduction of contaminants that can adversely affect processability. Recommended storage temperature is 5° – 40°C.
Storage time
Bayhydrol UA 2961 has a shelf life of six months from date of receipt at customer, provided the material is stored in sealed original containers at the recommended storage temperature.
Processing
Bayhydrol UA 2961 must be formulated with coalescing solvents to form a uniform film. Utilizing solvents at approximately a minimum of 10% on resin solids will provide optimal film formation. Suitable coalescing solvent examples include: Dipropylene Glycol n-Butyl Ether (DPnB), Dipropylene Glycol Methyl Ether (DPM), Propylene Glycol n-Butyl Ether (PnB), and Propylene Glycol n-Propyl Ether (PnP).
Film properties
Physical Performance Properties (AAMA 614-20/615-20) of Pigmented Coating Film on PVC substrate. (Formulation 57864-B)The system was spray applied on PVC panels at a target dry-film thickness of 1.5 mils. Panels were initially wiped with acetone prior to coating application for performance testing. The panels were allowed to flash dry at ambient conditions and dried at 50°C for 10 min. All testing was conducted after an additional seven-day rest at ambient temperature.
Health and Safety Information
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.
Trial or development Product
This is a trial product. Further information, including amended or supplementary data on hazards associated with its use, may be compiled in the future. For this reason no assurances are given as to type conformity, processability, long-term performance characteristics or other production or application parameters. Therefore, the purchaser/user uses the product entirely at his own risk without having been given any warranty or guarantee and agrees that the supplier shall not be liable for any damage, of whatever nature, arising out of such use. Commercialisation and continued supply of this material are not assured. Its supply may be discontinued at any time.
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 .
