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
Applications
Isocyanate component for two-component polyurethane resin for vacuum assisted resin transfer molding (VARTM).Desmodur 44CP23 in combination with Baydur® 120V2 is intended for the production of fiber-reinforced composites. For more details on processing please refer to the technical datasheet of the polyol component Baydur 120V2.The polyurethane resin has a very low viscosity and a long pot life at ambient temperature and a fast cure at elevated temperature.
Sampling
Moisture access should be prevented.
Specification
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Density at 25 °C | approx. 1,23 | g/ml | calculated | |
| Viscosity at 25 °C | 150 to 230 | mPa*s | DIN EN ISO 3219/A.3 | |
| NCO-content | 29,5 to 31,8 | % | DIN EN ISO 11909 |
Storage
Drums should be protected against strong sunlight and always kept sealed to protect the contents from moisture or damp air. Keep the container tightly closed in a well-ventilated place. Recommended storage and transport temperature: 10 - 30 °CShelf life (ex works): 180 days if stored in sealed, moisture-tight containers
Processing
Desmodur 44CP23 may undergo partial crystallization at temperatures below 10 °C. The product can, however, be brought back to the liquid state by allowing the entire contents of the drum to slowly reach 30 °C. Avoid applying heat, hot objects or use of steam to heat the drum. At temperatures below 0 °C formation of dimers may occur. These dimers cannot be melted and will lead to increased viscosity.Storage for long periods of time at temperatures above 30 °C leads to a deterioration in quality and deviant cure. Drums including empty ones should always be kept tightly sealed. The product should never be allowed to come into contact with water, which reacts with Desmodur 44CP23 to form polyureas and carbon dioxide. Contact with water in any form (damp drums, solvents containing water, moist air) must be prevented not only during storage, but also when removing material from drums and during processing. Failure to do so may lead to a dangerous build up of pressure in tanks and drums due to the generation of carbon dioxide. In addition, polyureas forming in Desmodur 44CP23 can cause solids to separate out, leading to blockages in the filters, pumps and pipelines of the processing equipment and resulting in production problems.
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.
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 .
