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
Aliphatic polyisocyanate (IPDI trimer), using alternative feedstocks attributed via mass balance (ISCC PLUS certified).As the hardener component for lightfast polyurethane coating systems and as an additive resin for alkyd spray coatings.
Applications
Desmodur® CQ ultra Z 4470 SN is used primarily as the hardener component for lightfast two-component polyurethane coatings with high resistance to chemicals and weathering, very good gloss retention and outstanding mechanical properties. On account of its high hardness, Desmodur® CQ ultra Z 4470 SN is normally mixed with Desmodur® N products. Preferred co-reactants are flexibilised polyacrylate polyols and polyester polyols such as Desmophen® 670.The main applications for two-component coatings based on Desmodur® CQ ultra Z 4470 SN are in automotive OEM and automotive refinishing.As Desmodur® CQ ultra Z 4470 SN has very good physical drying properties, it is also used as an additive resin in alkyd spray coatings to accelerate drying. The main applications of such coatings are in automotive refinishing and industrial finishing.
Form supplied
approx. 70 % in solvent naphtha® 100
Specification
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| NCO content | 11,9 ± 0,4 | % | M105-ISO 11909 | |
| Non-volatile content | (0.2 g/1 h/120 °C) | 70 ± 2 | % | M020-ISO 3251 |
| Viscosity | at 23 °C | 2,000 ± 600 | mPa*s | M014-ISO 3219/A.3 |
| Color value (Hazen) | ≤ 60 | M017-EN 1557 | ||
| Monomeric IPDI | < 0,1 | % | M106-ISO 10283 |
Typical Values
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Viscosity | at 25 °C | approx. 1,700 | mPa*s | M014-ISO 3219/A.3 |
| Equivalent weight | approx. 360 | |||
| Flash point | approx. 45 | °C | DIN 53 213/1 | |
| Density at 20 °C | approx. 1,05 | g/ml | DIN EN ISO 2811 | |
| Alternative carbon share | 1) (bio-circular attributed) | 47 | % | calculated |
| Alternative raw material share | [2] (bio-circular attributed) | 38 | wt.-% | calculated |
Solubility / thinnability
Desmodur® CQ ultra Z 4470 SN is soluble or thinnable in polar solvents such as esters, ketones and ether esters, e.g. butyl acetate, methyl ethyl ketone and methoxypropylacetate, as well as in aromatics. Generally speaking, it has good compatibility with the solvents listed. However, the solutions formed must be tested for their storage stability. Only PU grade solvents should be used (max. 0.05 % water, absence of reactive groups such as hydroxyl or amino groups).Stable solutions with a minimum solids content of 20 % can be produced by thinning the supply form with, e.g. xylene, toluene or higher boiling aromatics such as solvent naphtha 100 or mixtures of aromatics. If prolonged storage stability of the thinned solutions is required, aliphatics should not be added. However, compatibility with aliphatically solved coating systems is given.
Compatibility
Generally speaking, Desmodur® CQ ultra Z 4470 SN can be mixed with the following products: aliphatic polyisocyanates such as Desmodur® N 100, N 75, N 3200, ultra N 3300, N 3400 and ultra N 3600; aromatic polyisocyanates such as Desmodur® L/ultra L, HL and IL/ultra IL; polyester polyols such as Desmophen® 670; alkyd resins such as Alkydal® F 48.However, the compatibility of the combinations used should always be tested.
Storage
- Storage in original sealed Covestro container. - Recommended storage temperature: 0 - 30 °C. - Protect from moisture, heat and foreign material. General information: The product is sensitive to moisture. 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 .
