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Product Info for UNITHANE IC-438 SF

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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.

Industrial Applications:

This product is recommended for: Paint and Coating Resins

Product Characteristics:

Product Class	Solids %	pH	Viscosity @25ºC	Gloss	VOC g/L	Tensile (D-882)	Elongation (%)	Modulus 100% (psi)	Sward Hardness
	36 – 38	7.5 – 9.0	10 – 250	70 – 100	16.0-18.0	4840	331%	2600 psi

Full product details can be found in this section:

GENERAL INFORMATION

Special Features: Solvent Free (SF), NMP-Free (NF), Low VOC (<100 g/L)
Application Types – Industrial Coatings: Interior, Automotive, Synthetic Leather, Flooring, Wood, Concrete, Paint, Plastics – Rigid

TYPICAL SPECIFICATIONS

Total Solids %: 36 – 38
pH: 7.5 – 9.0
Viscosity @ 25⁰ C: 10 – 250
VOC (Grams/Liter): 16.0-18.0
VOC (% of total weight): 1.6-1.8
Specific Gravity: 1.01-1.04
Appearance: Semi-translucent
Gloss (60): 70 – 100
Freeze/Thaw Cycles (D-2243): 3
Shelf Life: Maximum 12 months
Harmonize Tariff Number: 3909.50.6000

TYPICAL FILM PROPERTIES

Tensile (D-882): 4840
Tensile at 100% Elongation: 2600 psi
Elongation (D-882): 331%
Cold Crank (ISO 17233): below 30°C
Softening Point: 165°C
Pencil Hardness (D-3363): 2H
UV Resistance (D-4587): No Damage (1000 hours at 340 nm)
Impact Resistance (D-2794): No Damage at 160 psi Reverse, Damage at 160 psi Direct
Tabor Abrasion (D-4060): 11 mg loss (CS-10, 1000g, 1000 cycles)
Mandrel Bend (D-522): Pass 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 1
Dry Time (D-5895): 89.3
Hydrolysis Resistance (200 hours, 70ºC, 95% RH): Retained 91% of Tensile Properties

CHEMICAL RESISTANCE TESTING (D-1308)

note: 5= no damage, films dried for 15 minutes at 80ºC, then equalized at room temp for 7 days.
Water: 5
Acetic Acid: 5
Methyl Ethyl Ketone: 3
2-Propanol: 3
Toluene: 5
Gasoline: 5

VARIOUS SUBSTRATE CROSS CUT ADHESION (D-3359)

Cold Roll Steel – Unpolished: 5B
Aluminum – Untreated: 5B
Brass – Untreated: 5B
ABS – Untreated: 0B
Polycarbonate – Untreated: 0B
Nylon – Untreated: 5B
HDPE – Untreated: 0B

Certified to ISO-9001:2015

Contact Information:

3 Malcolm Hoyt Drive
Newburyport, Massachusetts 01950 ∙ U.S.A.
Tel: (978) 465-1717 ∙ Fax: (978) 465-4194
E-mail: union@unionspecialtiesinc.com ∙ www.unionspecialtiesinc.com

Disclaimer:

The information and data contained herein are believed to be correct. However, we do not warrant either expressly or by implication the accuracy thereof.