Desmophen® XP 2680

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技术属性和数据表

Product description

Desmophen XP 2680 is a 100% solids polyester polyol/amine blend.

Applications

Desmophen XP 2680 is used as a coreactant with a polyisocyanate in two component polyurethane elastomeric coatings. Coatings based on Desmophen XP 2680 and Desmodur N polyisocyanates are well suited for uses requiring high film build, light stability, and weatherability as well as good chemical and abrasion resistance. Suitable substrates include metal, concrete, wood, plastics, and geotextiles. As with any product, use of Desmophen XP 2680 in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.

Specification

Property Test Condition Value Unit Standard
Hydroxyl value 360 - 390 mg KOH/g
Water content ≤ 0,20 %

Typical Values

Property Test Condition Value Unit Standard
Appearance Light yellow liquid
Solids > 99 wt.-%
Specific gravity at 25°C 1,04
Weight per Gallon at 25°C 8,7 lb.
Flash point (Setaflash) 150 °C
Equivalent weight avg. (as supplied) 151
Theoretical hydroxyl number 170 - 190
Theoretical amine number 185 - 195
Color (Gardner) max. 2
Viscosity at 25°C 800 - 1,200 mPa∙s

Solubility / thinnability

Desmophen XP 2680 is typically formulated in a solvent free coating; however, Desmophen XP 2680 is soluble in esters such as ethyl acetate, in ketones such as methyl ethyl acetate, methyl isobutyl ketone, and diacetone alcohol, and in glycol ether esters such as PM acetate for purposes of clean up.

Compatibility

Desmophen XP 2680 is compatible with most aliphatic and aromatic polyisocyanates. It is recommended to be used with Desmodur® XP 2580 or N 3200A to produce durable, elastomeric coatings.

Storage

Desmophen XP 2680 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. The product is hygroscopic. Containers must be kept tightly sealed to prevent contamination with moisture and foreign materials. Recommended storage temperature is 0º-50ºC.

Storage time

Desmophen XP 2680 has a shelf life of six months from date of receipt at customer, provided the material is stored in sealed original containers at the recommended storage temperature.

Health and Safety Information

Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. Information is available in several forms, e.g.,  in particular in the currently valid safety data sheets and product labels. For further information contact your Covestro representative.

The Product Safety First Program | Covestro

Disclaimer

General

The manner in which you use our products, technical assistance and information (whether verbal, written or by way of production evaluations), including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products to determine suitability for your processing and intended uses. Your analysis must at least include testing to determine suitability from a technical, health, safety, and environmental and regulatory standpoint. Such testing has not necessarily been done by Covestro, and Covestro has not obtained any approvals or licenses for a particular use or application of the product.

Unless we otherwise agree in writing, all products are sold strictly pursuant to the terms of our standard conditions of sale which are available upon request.

All information and including technical assistance is given without warranty or guarantee and is subject to change without notice. It is expressly understood and agreed by you that you assume and hereby expressly release indemnify us and hold us harmless from all liability, in tort, contract or otherwise, incurred in connection with the use of our products, technical assistance, and information. Any statement or recommendation not contained herein is unauthorized and shall not bind us. Nothing herein shall be construed as a recommendation to use any product in conflict with any claim of any patent relative to any material or its use. No license is implied or in fact granted under the claims of any patent.

Trial or development Product

This is a trial product. Further information, including amended or supplementary data on hazards associated with its use, may be compiled in the future. For this reason no assurances are given as to type conformity, processability, long-term performance characteristics or other production or application parameters. Therefore, the purchaser/user uses the product entirely at his own risk without having been given any warranty or guarantee and agrees that the supplier shall not be liable for any damage, of whatever nature, arising out of such use. Commercialisation and continued supply of this material are not assured. Its supply may be discontinued at any time.

Non Medical and non Food Contact

This product is not designated for the manufacture of a medical device or of intermediate products for medical devices (1). This product is also not designated for other specifically regulated applications (e.g. including cosmetics, plant protection, fertilisers, plant strengtheners, food processing, food contact and others). If the intended use of the product is for the manufacture of a medical device or of intermediate products for medical devices or for other specifically regulated applications Covestro must be contacted in advance to provide its agreement to sell such product for such purpose. Nonetheless, any determination as to whether a product is appropriate for use in a medical device or intermediate products for medical devices, for Food Contact products or cosmetic applications must be made solely by the purchaser of the product without relying upon any representations by Covestro.

1) Please see the Guidance on Use of Covestro Products in a Medical Application document.

Sample

Any samples provided by Covestro are for testing purposes only and not for commercial use.

Typical value

These values are typical values only. Unless explicitly agreed in written form, they do not constitute a binding material specification or warranted values

Contact

Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .

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