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K-FLEX® XM-359

1 of 16 products in this brand
K-FLEX® XM-359 is designed to provide long pot life in 2K polyurethanes and to prevent yellowing resulting from interaction with benzotriazole (BZT) UV absorbers in clearcoat systems. K-FLEX® XM-359 is a saturated, aliphatic resin modifier.

Functions: Anti-Yellowing Agent

Chemical Family: Polyols

Compatible Polymers & Resins: Polyurethanes (PU)

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions

Features & Benefits

Base Chemicals Features
Advantages
  • Optical Clarity/Low color
  • No yellowing from interaction with BZT UV Absorbers
  • Long pot life for 2-component polyurethane systems
  • Excellent compatibility and solubility (including exempt solvents)
  • Hardness with flexibility

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Base Chemicals End Uses
Use Level
5 - 25% (on TRS for 2-component urethanes), 5 - 10% (on total resin solids (TRS) for melamine baking systems)
Applications
  • Aerospace
  • Automotive OEM & Refinish
  • Plastic Coatings
  • Marine/Maintenance
  • Optically Clear Coatings, Elastomers and Laminates

Properties

Appearance
Clear, Light straw liquid
Typical Properties
ValueUnitsTest Method / Conditions
% Active100%
Viscosity (25°C)9800mPa.s
Hydroxyl Number230
Hydroxyl Equivalent Weight244
Weight per Gallon (25°C)9.3lbs
Gardner Color1

Storage & Handling

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