company tower banner
Union Specialties, Inc. Company Logo

UNITHANE IC-438 SF

1 of 11 products in this brand
UNITHANE IC-438 SF is a NMP and APEO free, uniquely hard waterbased polyurethane designed specifically for use in a formulating topcoat for concrete, metal, wood and selected plastics. UNITHANE IC-438 SF produces an extremely clear, high gloss coating with exceptional abrasion and chemical resistance properties.

Chemical Family: Polyurethanes (PU)

End Uses: Solventless & High Solids Coating, Top Coat

Compatible Substrates & Surfaces: Concrete, Metal, Plastics, Wood

Features: Abrasion Resistance, Chemical Resistance, High Gloss, Low VOC

Technical Data Sheet

Similar Products

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Features
  • Solvent Free (SF), NMP-Free (NF), Low VOC (<100 g/L)

Applications & Uses

Compatible Substrates & Surfaces
Application Types
  • Interior, Automotive, Synthetic Leather, Flooring, Wood, Concrete, Paint, Plastics - Rigid

Properties

Physical Form
Appearance
Semi-translucent
Typical Properties
ValueUnitsTest Method / Conditions
Total Solids36 - 38
pH7.5 - 9.0
Viscosity at 25°C10 - 250cps
VOC15.36g/l
VOC (Total Weight)1.56%
Specific Gravity1.01
Gloss at 60°C70 - 100
Freezethaw Cycles3D2243
Harmonize tariff number3909.50.6000
Film Properties
ValueUnitsTest Method / Conditions
Tensile4840D-882
Tensile at 100% Elongation2600psi
Elongation331%D-882
Cold crackbelow 30°CISO 17233
Softening point155°C
Pencil hardnessHBhD-3363
Sward hardness24.3D-2134
Uv resistance (1000 hours at 340 nm)No damageD-4587
Impact resistance at 160 psi ReverseNo DamageD-2794
Impact resistance at 160 psi DirectDamageD-2794
Tabor abrasion (Loss) (CS-10, 1000 cycles)11mgD-4060
Mandrel bendPass 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 1D-522
Dry Time89.3minutesD-5895
Hydrolysis resistance (200 hours, 70ºc, 95% rh)Retained 81% of tensile properties
Hydrolysis resistance (200 hours, 70ºc, 95% rh)Retained 81%

Technical Details & Test Data

Chemical Resistance Testing

Chemical Resistance Testing (D-1308):

  • WATER: 5
  • ACETIC ACID: 5
  • METHYL ETHYL KETONE: 3
  • 2-PROPANOL: 3
  • TOLUENE: 5
  • GASOLINE: 5
Various Substrate Cross-cut Adhesion

Various Substrate Cross-cut Adhesion (D-3359)

  • COLD ROLL STEEL - UNPOLISHED: 5B
  • ALUMINUM - UNTREATED: 3B
  • BRASS - UNTREATED: 5B
  • ABS - UNTREATED: 0B
  • POLYCARBONATE - UNTREATED: 0B
  • NYLON - UNTREATED: 5B
  • HDPE - UNTREATED: 0B

Storage & Handling

Shelf Life
max. 12