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
Blocked aromatic polyisocyanate based on TDI.In combination with cycloaliphatic diamines such as Laromin® C 260 (BASF) to formulate highly flexible, one-component stoving coatings.
Applications
Desmodur® BL 1100/1 is combined with Laromin® C 260 to formulate stoving coatings, including those for application by dipping and curtain coating, and adhesive cements. Combinations of Desmodur® BL 1100/1 and Laromin® C 260 with plasticisers can also be used as high-build coatings. Optimum film properties are produced by combining Desmodur® BL 1100/1 and Laromin® C 260 in the ratio 100 : 10 (by wt.). The mixing ratio was determined empirically. The films are rubber-like and have good mechanical properties.Stoving conditions: Longer stoving times at 180 °C and stoving temperatures above 190 °C will decrease the mechanical strength of the films.A special application is in stone-chip primer surfacers for the automotive industry. The film hardness and low-temperature crack resistance of Desmodur® BL 1100/1 / Laromin® C 260 combinations can be increased by the addition of Desmodur® BL 1265/1 MPA/X. The amount of Laromin® C 260 required to yield optimum film properties when combined with Desmodur® BL 1265/1 MPA/X has been determined empirically: Combinations of Desmodur® BL 1100/1 and Desmodur® BL 1265/1 MPA/X are cloudy and do not always have unlimited compatibility. Nevertheless, after stoving for 30 min at 160 °C, virtually clear films are obtained. Clear and pigmented one-component systems can be formulated using Desmodur® BL 1100/1 and Laromin® C 260. These are stable at room temperature and at 40 °C. When formulating pigmented systems using standard equipment, care should be taken that the temperature does not exceed 70 °C. Storage stability is limited at temperatures above 80 °C, even if exposure is brief.
Specification
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Color value (Hazen) | ≤ 150 | DIN EN 1557 | ||
| Viscosity at 23 °C | 43,000 ± 10,000 | mPa*s | DIN EN ISO 3219/A.3 | |
| Free NCO content | < 0,2 | % | DIN EN ISO 11 909 mod. |
Typical Values
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Flash point | > 150 | °C | DIN EN 22 719 | |
| Density at 20 °C | approx. 1,07 | g/ml | DIN EN ISO 2811 | |
| NCO content, blocked | approx. 3,0 | % | ||
| Equivalent weight | approx. 1400 |
Solubility / thinnability
Generally speaking, Desmodur® BL 1100/1 has good compatibility with the solvents listed. However, the solutions formed must be tested for their storage stability. Desmodur® BL 1100/1 is readily soluble in ethers, alcohols, esters and aromatic hydrocarbons. It has limited solubility in aliphatic hydrocarbons. Only PU grade solvents should be used (< 0.05 % water). The solvent should not contain reactive groups such as hydroxyl or amino groups.
Compatibility
Generally speaking, Desmodur® BL 1100/1 is miscible with various plasticisers such as Unimoll® BB, Adimoll® DO and Disflamoll® TOF. The combinations should always be tested for their compatibility.
Storage
- Storage in original sealed Covestro container. - Recommended storage temperature: 0 - 30 °C. - Protect from moisture, heat and foreign material. General information: Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product.
Storage time
Covestro represents that, for a period of nine 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 nine 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 nine 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 nine 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, 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.
Conditional Use in Regulated Applications
This product may be suitable for use in food contact. However, use in such applications requires prior written approval from Covestro. Legal requirements for such applications vary by country and jurisdiction, and the customer is solely responsible for verifying compliance with all applicable laws and regulations. Without Covestro’s written approval, the product may not be distributed or used for regulated purposes, and Covestro disclaims all liability for such use.
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 .
