Before working with this product, you must read and become familiar with the available information regarding its risks, proper use, and safe handling. This information is provided in various formats, including the current Safety Data Sheet (SDS) and product label. SDS can be accessed via the following link:
Safety Data Sheets (SDS) for Covestro products | Covestro
For further questions, please use the contact information provided on this technical data sheet.
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
Responsibility and Liability
The use of Covestro products, technical assistance, and information (regardless of how provided) is outside Covestro’s control and is solely the responsibility of the customer. The customer must conduct adequate testing to determine the suitability of products for its intended use, including but not limited to technical, health, safety, and environmental aspects. Unless otherwise agreed in writing, all products are sold exclusively under Covestro’s standard conditions of sale, which prevail in case of conflict and are available upon request.
The terms and conditions of sale and delivery are available via the following link:
https://order.covestro.com/covestrostorefront/saleConditions
All information is provided “as is” without warranties, express or implied, including merchantability or fitness for a particular purpose, and is subject to change without notice. To the maximum extent permitted by law, Covestro disclaims, and the customer assumes all liability for losses, damages, or claims arising out of use of Covestro products, technical assistance, or information. Any statement or recommendation not expressly contained in Covestro documentation is unauthorized and shall not bind Covestro. Nothing herein shall be construed as encouraging or recommending the use of any product in conflict with any claim of any patent. No license is implied or in fact granted under the claims of any patent.
Restrictions on Regulated Applications
This product is not intended for use in regulated applications such as agriculture, cosmetics, drinking water contact, food contact, medical products (e.g., medical devices), toys, or similar uses subject to specific regulatory requirements. Prior written approval from Covestro is required before this product may be used in any regulated application. The customer is solely responsible for ensuring compliance with all applicable laws and determining product suitability. Covestro disclaims all liability and warranties for unauthorized regulated uses.
Trial or development Product
This product is provided on a trial basis only. Hazard and performance information may be incomplete and may be updated as additional data becomes available. No assurances are given regarding conformity, processability, or long-term performance. Use of this product is at the sole responsibility and risk of the customer. All warranties, express or implied, are disclaimed. Continued supply is not guaranteed and may be discontinued without notice. Covestro accepts no liability for damages or losses arising from the use of this trial product.
Typical Value
The values provided are typical only and do not represent binding specifications. Unless expressly confirmed in a written contract, these values are not part of the contractual quality agreement and must not be relied upon as a warranty or guarantee of product performance.
Sample
Samples provided by Covestro are intended solely for evaluation and testing purposes by the customer and may not be used in commercial applications, resold, transferred to third parties (except qualified testing service providers acting on behalf of the customer), reverse engineered, modified, or used in any manner not explicitly authorized in writing by Covestro. Samples are provided ‘as-is’ without any warranties, express or implied, including fitness for a particular purpose. Customers are solely responsible for ensuring safe handling, regulatory compliance, and suitability of the material for their intended evaluations. Covestro disclaims all liability for damages or losses arising from the use of samples.
Contact Information
Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .
