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K-FLEX® UD-320

K-FLEX® UD-320 is a high solids, aliphatic, low molecular weight urethane diol oligomer. It is soluble in polar organic solvents and has broad compatibility with acrylic, polyester, and alkyd resins. K-FLEX® UD-320 will increase the hardness of a melamine crosslinked system. When used to modify a 2-component polyurethane, it will increase hardness and flexibility. K-FLEX® UD-320 responds best to a zirconium chelate catalyst when used in isocyanate crosslinked systems.

Brand: K-FLEX (16 products)

Chemical Family: Polyols

Labeling Claims: Low VOC

Hydroxyl Value: 300.0 - 300.0 mg KOH/g

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family
Polyols
CASE Ingredients Functions
Oligomer
Technologies
Base Chemicals & Intermediates,
CASE Ingredients
Product Families
CASE Ingredients — Monomers & Intermediates
Oligomers
Base Chemicals & Intermediates — Monomers & Oligomers
Diols & Polyols

Features & Benefits

Labeling Claims
Low VOC
Base Chemicals Features
Chemical Resistance,
Excellent Hydrolytic Stability,
High Hardness
CASE Ingredients Features
Chemical Resistance,
Improved Flexibility,
Improved Hardness,
Low VOC,
Outdoor Durability,
QUV Resistance
Advantages
  • Low VOC
  • Increased Hardness
  • Good Chemical Resistance
  • Good Exterior Durability
  • Excellent Hydrolytic Stability
  • Good QUV Resistance
  • Urethane Functionality without Isocyanates

Applications & Uses

Markets
Automotive & Transportation,
Industrial,
Paints & Coatings
Applications
Paints & Coatings — Automotive & Transportation
Aerospace Coatings,
Automotive OEM Coatings
Paints & Coatings — Building & Construction
Wood Coatings & Finishes
Automotive & Transportation — Coatings & Finishes
Aerospace Coatings,
Automotive OEM Coatings
Paints & Coatings — Industrial Coatings
Industrial Coatings
Industrial — Maintenance, Repair & Overhaul
Automotive & Transportation — Transportation
Aerospace & Aviation
Compatible Polymers & Resins
Acrylics,
Alkyds,
Melamines & Melamine Formaldehydes (MF),
Polyesters
Compatible Substrates & Surfaces
Paper,
Wood
Base Chemicals End Uses
Coatings
Use Level
5 - 25% (on TRS for 2-component urethanes), 5 - 10% (on total resin solids (TRS) for melamine baking systems)
Applications
  • Machinery and Equipment Coatings
  • Appliance Coatings
  • Automotive Coatings
  • Paper Coatings
  • Wood Coatings
  • Aerospace Coatings
  • Automotive Repair

Properties

Color
Transparent
Physical Form
Liquid
Appearance
Clear, Straw viscous liquid
Typical Properties
ValueUnitsTest Method / Conditions
% Active82%-
Viscosity (25°C)7000mPa.s-
Hydroxyl Number300--
Hydroxyl Equivalent Weight188--
Weight per Gallon (25°C)9.4lbs-
Gardner Color2--
VolatilePM Acetate--

Storage & Handling

Shelf Life
24 months
Storage/Shelf Life
  • Store in cool, dry location. Keep containers closed when not in use. Do not store near open flame or other sources of ignition. Periodic venting of containers is recommended.
  • 24 months from the date of manufacture when stored at room temperature in the original container.