Covestro Desmodur RC hardener - 广州昊毅新材料科技股份有限公司

Solvent-based adhesive raw materials

Covestro Desmodur RC hardener

 

type

Ethyl acetate solutions of polyisocyanates based on toluene diisocyanate (TDI)

form of supply

About 35% ethyl acetate solution

use

Colorless to pale yellow liquid. Color does not affect bonding properties


nature         
    As a cross-linking agent, Desmodur® RC is suitable for adhesives formulated with Desmocoll®, natural or synthetic rubber, and is especially suitable for light-colored adhesives for bonding rubber materials.

  Characteristic Parameters

characteristic

Numerical value

Units of measurement

method

NCO content

7.0±0.2

%

DIN EN ISO 11902Annex A

solid content

35

%

 

 

  Properties/Applications
       After adding Desmodo® RC, the two-component adhesive must be used within the pot life. The pot life is not only related to the polymer content in the adhesive, but also related to other components (such as resins, antioxidants, plasticizers, solvents, etc.) When the pot life is approached, usually a few hours or a working day, the adhesive becomes More difficult to apply, viscosity builds up quickly. Eventually, an irreversible gel appears.胶粘剂需要的交联剂The amount of crosslinking agent required for the adhesive can refer to the following data:
100 parts by mass of adhesive                 Dosage of Desmodo® RC
Desmoco® (Hydroxypolyurethane)

(Polyurethane content is about 20%)           4-7
Bayer Flat® (Neoprene)
(Rubber content is about 20%)            4-7

 

  Package  
     Metal container: 0.80kg 1L bottle

 store
      Store in airtight original packaging at 23°C.
All Desmodo® products are sensitive to wet conditions and react with water to generate carbon dioxide and insoluble urea, so the container must be kept tightly closed. The introduction of water in any form (wet container, aqueous solvent, humid air) should be avoided, otherwise the carbon dioxide produced may cause a dangerous increase in the pressure inside the container.
Exposure to air or light will accelerate yellowing, but it has no effect on the basic performance of the product.

  Safety: Dangerous nature
       Highly flammable, harmful if inhaled, irritating to eyes. Inhalation can cause allergy. Repeated exposure can cause dry or cracked skin.
Please refer to the Safety Data Sheet (072323), which contains information on product identification, transportation, storage, and product-related handling, safety and ecology.

 

  dispose     

Useless product residues should be incinerated according to local regulations, and should refer to the European Waste Catalogue (EWC) industrial waste code details. See Material Safety Data for details.
In areas not subject to German packaging regulations, carefully cleaned containers or packaging can be incinerated in local or industrial incinerators. For containers whose contaminants have not been removed, the hazard labels shall be retained.

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