Enhanced TDS
Identification & Functionality
- Blend
- No
- CASE Ingredients Functions
- Chemical Family
- Chemical Name
- Function
- Crosslinking Agent
- Product Code
- MITM00270
- Single Ingredient
- Yes
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Product Benefits
- Excellent compatibility with hydrophobic resins
- Low viscosity
- Very good hydrocarbon tolerance
- Very good flow properties
Applications & Uses
- Coating End Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Markets
- Applications
- Product Applications
- Decorative metal finishes
- Coil coating primers
- Can coatings
Properties
- Physical Form
- Soluble In
Regulatory & Compliance
- Certifications & Compliance
- Contains any chemicals listed on Prop 65 (including impurities, residues, catalysts, monomers, and by-products and excluding heavy metals)?
Technical Details & Test Data
- Technical Data
- CYMEL U-216-8 resin contains a combination of butoxymethyl and methylol functionalities, making it a very effective crosslinking agent for backbone polymers containing hydroxyl, carboxyl, and amide functionality.
- In addition to entering into crosslinking reactions, CYMEL U-216-8 resin also has a tendency toward self-condensation.
- Therefore, its practical equivalent weight, on a solids basis, is in the range of 200-280. Increasing the level of CYMEL U-216-8 resin in a coating formulation will generally increase the hardness and chemical resistance of the cured film, although higher levels may also increase brittleness.
- The optimum level in a particular formulation should always be determined experimentally.
- Catalysis Information
- As with other urea-formaldehyde resins, CYMEL U-216-8 resin may not require the addition of an acid catalyst to the formulation in order to obtain effective cure.
- In many instances, the acidity of other formulation components is sufficient to catalyze reaction.
- If catalyst addition is required, then 0.5-1.0% of either CYCAT® 4040 catalyst or CYCAT 296-6 catalyst, based on weight of total binder solids, is recommended for normal bake schedules (15-20 minutes at 120- 150°C)
Packaging & Availability
Principal Information
- Group Principal Number
- S000001
- Principal
Storage & Handling
- Storage Conditions
- CYMEL U-216-8 resin has a shelf life of 4 years 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.
Other
- Appearance
- Clear liquid
- Appearance (SDS)
- Liquid
- Color (SDS)
- Colorless
- IATA/ICAO Proper Shipping Name
- Resin solution
- IATA/ICAO UN Number
- UN1866
- IMO/IMDG Proper Shipping Name
- Resin solution
- IMO/IMDG UN Number
- UN1866
- Item Number
- Odor (SDS)
- Formaldehyde and butanol
- Other Hazards
- Polymerization may occur from excessive heat , contamination or exposure to direct sunlight .
- TDG Canada Proper Shipping Name
- Resin solution
- TDG Canada UN Number
- UN1866
- USA/DOT Proper Shipping Name
- Resin solution
- USA/DOT UN Number
- UN1866
- Optical Properties
Value Units Test Method / Conditions Color Scale max. 70.0 APHA APHA Color Scale max. 70.0 Gardner Gardner ISO 6271 - Chemical Properties
Value Units Test Method / Conditions Free Formaldehyde Content max. 2.5 % % Sulfite Method - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life1 4.0 yr yr - Physical Properties
Value Units Test Method / Conditions Viscosity 500.0-1250.0 mPa.s mPa.s At 25°C - Material Composition
Value Units Test Method / Conditions Non-Volatile Content 57.0-61.0 %(W/W) %(W/W) at 105°C/2 hrs, pan - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Boiling Point (SDS) 118.0 °C °C Density (SDS) 1.01 g/cm³ g/cm³ Evaporation Rate (SDS) 0.43 % % Butyl acetate = 1 Flammable Limits (SDS) 1.4-11.2 %(V/V) %(V/V) Value for N-butanol Flash Point (SDS) 34.0 °C °C SetaFlash Closed Cup Vapor Density (SDS) 2.55 g/cm³ g/cm³ air = 1, value for n-butanol Vapor Pressure (SDS) 5.0 mm Hg mm Hg at 20°C Volatile Content (SDS) 41.0 %(W/W) %(W/W)