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
Bayflex WR 7149 is a moldable polyurethane elastomer system.
Applications
Bayflex WR 7149 aromatic PUR RIM system is designed for glass encapsulation applications and can be a suitable replacement for aliphatic PUR materials. It is processed on high pressure reaction injection molding (RIM) equipment and produces an elastomer with a hardness of 55 – 60 Shore D. This system combines rapid demold time, excellent green strength and outstanding physical properties. As with any product, Bayflex WR 7149 system must be evaluated and tested (included but not limited to field testing) in advance by the user to determine suitability for use in a given application.
Storage
Avoid moisture contamination during storage, handling and processing. For both components, pad containers with dry nitrogen or air (desiccant cartridge or air dryer at -40°C dew point). Polyol component will phase separate. Mix polyol component to a homogenous state before use and before removing any material from container, but avoid air entrainment. Maintain adequate mixing of the polyol component during use. Recommended storage temperature for the polyol component is 10 – 30°C. Recommended storage temperature for the isocyanate component is 10 – 30°C. Do not store isocyanate component at lower temperatures – material becomes viscous; freezing may occur.
Storage time
Storage period of both components is 9 months after the date of manufacture when stored in sealed original containers under recommended storage conditions.
Processing
Substrates must be clean and dry, and free of surface contaminants; especially surface oils and release agents. The need for primer must be determined in advance by the user.
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
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.
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 .
