CYMEL® UI-20-E Resin
- CASE Ingredients Functions
- Crosslinking Agent
CYMEL® UI-20-E Resin functions as a pivotal crosslinking agent, especially for the paints and coatings industry. It finds its primary applications in industrial coatings and furniture coatings, showcasing its versatility. The product, available in liquid form, presents a clear appearance. Additionally, its compatibility extends to acrylics, alkyds, and polyesters, making it a preferred choice for various wooden substrates.
Properties
- Physical Form
- Liquid
Product families
Applications
- Furniture Coatings
Product Families
- Chain Extenders & Crosslinkers
Other characteristics
- Brand
- CYMEL
- Functions
- Crosslinking Agent
- Compatible Polymers & Resins
- Acrylics, Alkyds, Polyesters
- Markets
- Paints & Coatings
- Pot Life
To extend catalyzed pot life of the formulation, addition of primary alcohols, such as n-butanol, ethanol, and methanol, is required at concentrations of 10- 25% on total resin solids. Faster evaporating alcohols will improve speed of dry
- Catalysis
CYMEL UI-20-E resin responds best to sulfonic acid catalysts, like CYCAT® 4040. Generally, 6-10% CYCAT 4040 catalyst on total binder solids of the formulation is sufficient to obtain fast drying behavior at room temperature.
- Stability
STORAGE STABILITY. CYMEL UI-20-E resin has a shelf life of 24 months from date of manufacture when stored at temperatures between 5°C and 30°C. Although low temperatures are not detrimental to stability, the viscosity of the product will increase making the resin more difficult to pump or pour. Product viscosity can be returned to normal by gentle re-warming, however, care should be taken to avoid excessive localized heating as this can cause an irreversible increase in viscosity.
- Appearance
- Clear Liquid
- Shelf LIfe
- 24 months
- Insoluble In
- Water
- Technology
- CASE Ingredients
- HIGHLIGHTS
- BENEFITS
- High film build
- Low odor
- Fast drying
- Excellent block resistance
- Low formaldehyde release
- APPLICATION AREAS
- Acid curing wood coating applications
- Backbone Polymer Selection
CYMEL UI-20-E resin is a very effective crosslinking agent for backbone polymer resins containing hydroxyl functional groups, such as alkyd, polyester or acrylic resins. CYMEL UI-20-E resin has high reactivity and a high tendency for selfcondensation providing fast drying films with good gloss, hardness and block resistance. The optimum level of CYMEL UI-20-E resin in an acid curing wood coating formulation should be in the range of 25-35% on total resin solids. To obtain formulations with optimum resistance properties, addition of a melamine resin, such as CYMEL MB 98 resin, at levels of 5-10% on total resin solids is recommended.
- Compatibility and Solubility
- SOLUBILITY
- COMPATIBILITY
- Compatible Polymers and Resins
- Acrylics
- Alkyds
- Polyesters
- Compatible Substrates and Surfaces
- Wood
Technical data
Table 1 of 1
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Color | max. 50 | APHA |
| Non-Volatile Content | 78 ± 2 | %wt |
| Free Formaldehyde Content | approx. 0.5 | % |
| Viscosity (23°C) | 1700-3500 | mPa.s |
