China (Mainland)
DESMODUR RC Crosslinking Agent CAS NO.141-78-6
- FOB Price: USD: 10.77-12.56 /Kilogram Get Latest Price
- Min.Order: 16 Kilogram
- Payment Terms: L/C,D/A,D/P,T/T,MoneyGram,Other
- Available Specifications:
industrial(16-5000)Kilogramindustrial(5000-50000)Kilogram
- Product Details
Keywords
- DESMODUR RC
- Crosslinking Agent
- a solution of the polyisocyanurate of toluene diisocyanate (TDI) in ethyl acetate
Quick Details
- ProName: DESMODUR RC Crosslinking Agent
- CasNo: 141-78-6
- Appearance: virtually colorless to slightly yellow...
- Application: Desmodur RC polyisocyanate is a suitab...
- DeliveryTime: 15 days
- PackAge: Desmodur RC polyisocyanate is supplied...
- ProductionCapacity: 50 Metric Ton/Day
- Purity: 35%
- Storage: stored in its sealed original containe...
- Transportation: by express delivery or sea shippin...
- LimitNum: 16 Kilogram
- Grade: Industrial Grade
- NCO content of solution: 7.0
Superiority
Desmodur RC polyisocyanate is a solution of the polyisocyanurate of toluene diisocyanate (TDI) in ethyl acetate.
Application
Desmodur RC polyisocyanate is a suitable crosslinker
for adhesives based on Desmocoll polyurethane,
natural rubber or synthetic rubber. Desmodur RC
polyisocyanate is especially useful for crosslinking
pale-colored adhesives used to bond rubber-based
materials.
After adding Desmodur RC polyisocyanate to a
polyurethane or rubber-based adhesive, the ready-to-
use two-component mixture must be used within its
pot life. Pot life is not only governed by the polymer
content of the adhesive but also by its other compo-
nents (resins, antioxidants, plasticizers, solvents, etc.).
At the end of the pot life, which can vary from
several hours to one working day, the adhesive
becomes increasingly difficult to process and its
viscosity increases rapidly. Finally, irreversible gelling
occurs. The following guide values are suggested for
determining the amount of crosslinker to be used.
Amounts given are parts by weight (pbw).
To crosslink 100 pbw adhesive: Desmocoll®
(hydroxyl
polyurethane) based adhesives (containing 20%
polyurethane) should be crosslinked with 4 - 7 pbw
Desmodur RC polyisocyanate. Baypren®
(polychloroprene rubber) based adhesives (containing
approximately 20% rubber content) should be
crosslinked with 4 - 7 pbw Desmodur RC
polyisocyanate.
Details
Product Specifications
Property Value
NCO content of solution
(DIN EN ISO 11 909,
Annex A)(%) 7.0 ± 0.2
Typical Properties*
Property Value
Form supplied approx. 35% in ethyl acetate
Non-volatile content
(DIN EN ISO 3251) approx. 35%
Density at 20°C (DIN 53 217/5) approx. 1.015g/cm³
Viscosity at 20°C (DIN 53 015) approx. 3 mPa•s
Solvent ethyl acetate
Flash Point (DIN 51 755) -4°C
Appearance virtually colorless to
slightly yellowish liquid
The color does not influence the quality of the bonds.