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
Hydrophilically modified aliphatic polyisocyanate based on isophorone diisocyanate (IPDI).Bayhydur® 401-60 PGDA might be used as co-reactant for aqueous resins and as hardener for chemically resistant and weather-stable coating systems.
Applications
Bayhydur® 401-60 PGDA can be easily emulsified into the aqueous phase of a water-borne lacquers or adhesive and is mainly used as co-crosslinker for aqueous resins of the Bayhydrol® range. Coating characteristics of aqueous two-component polyurethane coatings can be improved by addition of Bayhydur® 401-60 PGDA to HDI based Bayhydur® crosslinkers, such as Bayhydur® XP 2655 or Bayhydur® XP 2487/1.Typical blends of Bayhydur® 401-PGDA with said HDI-based Bayhydur® crosslinkers contain 5-30 % of Bayhydur® 401-PGDA on total solids of crosslinkers. Benefits of Bayhydur® 401-PGDA include for example: Final performance properties, such as Application properties, such as
Form supplied
Approx. 60 % in propylene glycol diacetate
Specification
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| NCO content | 7.7 - 8.7 | % | M105-ISO 11909 | |
| Viscosity | at 23 °C | 700 - 1,300 | mPa*s | M014-ISO 3219/A.3 |
| Color value | (Hazen) | ≤ 60 | M017-EN 1557 | |
| Monomeric IPDI | < 0,30 | % | M106-ISO 10283 |
Typical Values
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Equivalent weight | approx. 494 | |||
| Flash point | approx. 84 | °C | DIN EN ISO 2719 | |
| Density | at 20 °C | approx. 1,11 | g/cm3 | DIN 51757 |
Solubility / thinnability
Generally speaking, Bayhydur® 401-60 PGDA can be diluted with different polar to unpolar aliphatic solvents that are common when formulating lacquers. With polar solvents dilution of down to 20 % solid content can be reached. The storage stability of the corresponding dilutions needs to be checked, thoroughly. Especially, when using benzines dilutions need to be done with due care and skill. The addition of Bayhydur® 401-60 PGDA to the benzine-dissolved binder is recommended. Only PU grade solvents (< 0.05 % water) should be used. Also, the solvents have to be free off reactive groups such as hydroxyl or amino groups.
Compatibility
Generally speaking, Bayhydur® 401-60 PGDA can be mixed with various Desmodur® - and Bayhydur® - types, e.g. Desmodur® ultra N 3300 or ultra N 3600, Bayhydur® ultra 3100, XP 2655 or XP 2547. However, the compatibility must be tested in each case. As well, Bayhydur® 401-60 PGDA can be dispersed in various waterborne binders such as Bayhydrol® - types, e.g. Bayhydrol® A 2470, A 2646, A 242, A 2845 and U 2755. The overall formulation (solids content, co-solvent content, type of co-solvent) needs to be considered in order to achieve a stable and properly working formulation. In case you need technical support, please, ask your supplier.
Storage
- Storage in original sealed Covestro container. - Recommended storage temperature: 0 - 30 °C. - Protect from moisture, heat and foreign material. General information: Hydrophilic isocyanates are very moisture-sensitive and react with water to form carbon dioxide and insoluble urea. Containers must always be kept tightly closed. Contact with water in all forms (moist air, solvents, moist containers) must be avoided, because of generation of carbon dioxide and the dangerous increases of pressure. Storage at higher temperatures will result in increase of color and viscosity.
Storage time
Covestro represents that, for a period of six months following the day of shipment as stated in the respective transport documents, the product will meet the specifications or values set forth in section "specifications or characteristic data" above, what ever is applicable, provided that the product is stored in full compliance with the storage conditions set forth in and referenced under section "storage" above and is otherwise handled appropriately.The lapse of the six months 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 six months 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 six months period.
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 .
