Polyurethane Coating Testing

Polyurethane coating is a polyurethane layer applied to the surface of a substrate for the purpose of protecting it or adding another element, such as color. It is made from polyisocyanates and polyols. Polyurethane coating has been widely used due to its significant advantages such as highly versatile chemistry, superior toughness, excellent resistance to abrasion and chemical corrosion, good balance between hardness with flexibility, and great adhesion capability to a wide variety of substrates in a broad range of temperatures. Polyurethane coatings are used for many different applications, including floors, metal roofs, pipelines, blades and bases of wind turbines, industrial equipment, aircraft, vessels and on top of other coatings.

STEMart provides a wide range of polyurethane coating testing to ensure that it is suitable for its intended use.

Chemical Analysis

Composition analysis
Toxic and harmful substance detection

Physical Properties Analysis

Appearance
Color
pH value
Molecular weight
Density
Viscosity
Fineness
Particle size
Hardness
Flexibility

Solid content
Ash content
Non-volatile content
Flash point
Glass transition temperature
Resistivity
Breakdown voltage
Water absorption rate
Storage stability
Dry time

Mechanical Properties Analysis

Abrasion and wear testing
Tear testing
Tensile testing
Impact testing
Adhesion testing

Puncture testing
Bend testing
Scratches resistance testing
Liquid water permeability testing

Protective Performance Evaluation

Wet resistance
Heat resistance
Low temperature resistance
Weather resistance
Oil resistance

Stain resistance
Washing and brushing resistance
Corrosion resistance (salt, acid, alkaline, detergent, chemical)
Flam resistance

Anti-microorganism Ability Assessment

Anti-bacterial testing
Anti-fungal testing
Anti-virus testing

For more information about our polyurethane coating testing services, please contact us.