CYMEL® 250 Resin
- CASE Ingredients Functions
- Crosslinking Agent
CYMEL® 250 Resin functions as a crosslinking agent within the CASE Ingredients domain, specifically falling under monomers and intermediates and chain extenders and crosslinkers. Tailored for the automotive, transportation, paints, and coatings markets, this clear liquid is vital for applications like automotive OEM coatings and finishes. Compatible with acrylics, alkyds, epoxies (EP), and polyesters, it is primarily designed for primer use, offering consistent quality and performance.
Properties
- Physical Form
- Liquid
Product families
Applications
- Automotive OEM Coatings
- Automotive OEM Coatings
Product Families
- Chain Extenders & Crosslinkers
Other characteristics
- Brand
- CYMEL
- End Uses
- Primer
- Functions
- Crosslinking Agent
- Compatible Polymers & Resins
- Acrylics, Alkyds, Epoxies (EP), Polyesters
- Markets
- Automotive & Transportation
- Paints & Coatings
- Catalysis
CYMEL 250 resin responds to catalysis by weak acids. At baking temperatures above 120°C, the carboxyl functionality of the other resins in a formulation would be an adequate catalyst. If catalyst is necessary, any soluble acid would be effective. Normally, phosphate esters such as CYCAT 296-9 are recommended. The acid concentration would have been determined for each system.
- Stability
FORMULATION STABILITY; The stability of solvent-borne systems containing CYMEL 250 resin can be enhanced by the addition of primary alcohols, amines, or a combination of these. Low molecular weight primary alcohols such as ethanol and n-butanol are most effective. Recommended amines are TEA, DMEA or 2-AMP at a concentration of 0.5-1.0% on total binder solids.; STORAGE STABILITY; CYMEL 250 resin has a shelf life of 1 year from the date of manufacture when stored at temperatures between 5°C and 30°C packed in unopened original containers .CYMEL 250 resin must be kept indoors and avoided the direct sunlight exposure. Although lower temperatures are not detrimental to stability, its viscosity will increase, possibly making the resin difficult to pump or pour. The viscosity will reduce again on warming, but care should be taken to avoid excessive local heat as this can cause an irreversible increase in viscosity.
- Appearance
- Clear Liquid
- Shelf LIfe
- 1 year
- Coating Type
- Primer
- Insoluble In
- Water
- Technology
- CASE Ingredients
- HIGHLIGHTS
BENEFITS; Fast low temperature cure response; Superior humidity and water resistance; Lower VOC than conventional butylated melamine resins; APPLICATION AREAS; Automotive primer/surfacer; Automotive basecoat
- Partially Soluble in
- Aliphatic Hydrocarbons
- Backbone Polymer Selection
CYMEL 250 resin is an efficient cross-linking agent for hydroxyl, amide, carboxyl, functional polymers or resins. Similar to other melamine resins with reactive functions, it is not only crosslinks with the above functionalities, but also selfcondenses readily.
- Compatibility and Solubility
- SOLUBILITY
- COMPATIBILITY
- Compatible Polymers and Resins
- Acrylics
- Alkyds
- Epoxies (EP)
- Polyesters
Technical data
Table 1 of 1
5 rows| Characteristic | Value | Unit |
|---|---|---|
| Solvent | N-butanol | — |
| Color | max. 1 | Gardner |
| Non-Volatile Content | 70.5± 2 | %wt |
| Free Formaldehyde Content | max.1.0 | % |
| Viscosity (25°C) | V-Z1 | — |
