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K-FLEX® UD-350W

1 of 16 products in this brand
K-FLEX® UD-350W is an aqueous solution of an aliphatic, low molecular weight urethane diol oligomer. It is recommended as a modifier for amino crosslinked water soluble and emulsified acrylic, alkyd, urethane and polyester resins. K-FLEX® UD-350W can be used as a reactive cosolvent replacement to increase solids, crosslink density, improve film/resistance properties and flow/leveling.

Functions: Oligomer, Solvent

Chemical Family: Polyols

Labeling Claims: Low VOC

Technical Data Sheet
  • TypeDocument Name
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions

Features & Benefits

Labeling Claims
Advantages
  • Allows cosolvent reduction (lower-VOC)
  • Water soluble without using amine and cosolvent
  • Reduced Popping
  • Increased hardness
  • Good chemical/stain resistance
  • Improved flow/leveling (higher gloss)
  • Good hydrolytic stability
  • Excellent QUV resistance and exterior durability
  • Anti-skinning

Applications & Uses

Application Method
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Base Chemicals End Uses
Use Level
2 - 15% (Total resin solids)
Applications
  • Emulsions or water-borne thermoset coatings crosslinked with aminoplasts:
  • Coil coatings
  • Overprint varnishes
  • Appliance coatings
  • Automotive coatings
  • Wood coatings
  • Can coatings
  • Dip coatings

Properties

Physical Form
Appearance
Straw colored liquid
Diluent
Water
Typical Properties
ValueUnitsTest Method / Conditions
% Active88wt. %
Viscosity (25°C)4000mPa.s
Hydroxyl Number (Calculated on resin hydroxyls)325
Hydroxyl Equivalent Weight170
Gardner Color2
Weight per Gallon9.4lbs

Storage & Handling

Shelf Life
24 months
Storage/Shelf Life
  • Store in a cool, dry location.
  • Minimum of 24 months from date of manufacture, when stored in the original container at ambient conditions.