Abrasion Resistance Testing of Polyaspartic

Abrasion resistance is one of the core advantages of polyaspartic, making it particularly suitable for high-frequency wear scenarios such as industrial flooring, ore chutes, and logistics warehouses.
 

Standard Laboratory Testing Methods

1. Taber Abrasion Test (Rotary Wear)

Standard: ASTM D4060 (U.S.)
Principle: A specified abrasive wheel (e.g., CS-10 rubber wheel, 1 kg load) is rotated against the specimen (500–5000 cycles), and the mass loss (mg) or volume loss (mm³) is measured.
Typical polyaspartic value:

 
Comparison: Epoxy flooring typically shows 80–150 mg loss, PVC flooring about 50–80 mg loss.

2. Falling Sand Abrasion Test (Impact Wear)

Standard: ASTM D968 (U.S.), ISO 5470 (International)
Principle: Quartz sand of specified particle size (e.g., 0.5–0.7 mm) flows through a guide tube to impact the coating surface at a 45° angle. The volume of sand required to wear through 1 μm of coating thickness (L/μm) is measured.
Polyaspartic performance: ≥40 L/μm (epoxy resin approx. 15–25 L/μm)
Note: Higher values indicate greater abrasion resistance.
 

Simulated Service Condition Tests

1. Steel Wheel Reciprocating Rolling (DIN Abrasion)

Standard: DIN 53754 (Germany, simulating forklift traffic)
Method: A 50 kg steel wheel repeatedly rolls across the specimen surface (1000 cycles), and the depth of wear (mm) is measured.
Polyaspartic result: <0.02 mm (ordinary concrete >0.3 mm).

2. Drop-Hammer Impact + Abrasion Combined Test

Procedure:
1.Impact the specimen with a 1 kg steel ball dropped from a height of 1 m (GB/T 1732) to create an indentation.
2.Perform Taber abrasion (500 cycles) on the indentation area.
3.Observe whether the edges of the indentation show flaking or wear propagation.
Polyaspartic advantage: Due to high elastic recovery, indentation rebound is >80%, and no crack propagation occurs in the worn area.
 

Extreme Environment Abrasion Tests

1. High-Temperature Abrasion Resistance (80–120°C)

Method: Preheat the specimen to the set temperature, then conduct Taber abrasion (1 kg load, 1000 cycles).
Data comparison:

2. Wet/Chemical Medium Wear Resistance

Simulation: After soaking in water for 24 h, conduct Taber abrasion; apply 5% H₂SO₄ or engine oil to the surface and perform DIN rolling tests.
Result: Wet abrasion loss increases by <10%, with no performance degradation in acid/oil environments.
 

Field Verification Methods

1. On-Site Friction Coefficient Test

Standard: ASTM E303 (Pendulum Skid Resistance Tester)
Purpose: Ensures a balance between abrasion resistance and slip resistance (coefficient ≥0.6 is considered safe).
Polyaspartic data: Dry: 0.75–0.85; Wet: 0.65–0.75 (with anti-slip aggregate >0.8).

2. Industrial Site Monitoring

Case indicators:

Mechanism of Abrasion Resistance

1. Molecular Structure Support

High crosslink density: Three-dimensional network structure disperses stress, reducing cutting damage from abrasive particles.
Hard-segment/soft-segment microphase separation: Hard segments (urea bonds) provide rigidity, soft segments (polyether/ester) absorb impact energy.
 

2. Self-Recovery Characteristics

Elastic deformation recovery: Polymer chains rebound after compression, preventing permanent deformation (contrast with the brittle fracture of epoxy resin).
Microscopic wear surface morphology: SEM images show that polyaspartic wear surfaces are smooth with no flake detachment (epoxy shows a cracked pattern).
 

Recommendations for Accredited Testing and Certification

1. Mandatory Tests

Taber abrasion (ASTM D4060)
Falling sand abrasion (ASTM D968)
Additional wet/high-temperature tests
 

2. Certification Bodies

SGS (comprehensive abrasion and slip resistance reports)
Abrasion resistance reference table (for key application scenarios):

Key Engineering Selection Criteria

1.Severe wear scenarios (ore chutes, unloading zones): Taber abrasion ≤30 mg + Falling sand ≥35 L/μm
2.Temperature resistance requirement: For environments >60°C, provide high-temperature abrasion test results (loss ≤40 mg at 80°C).
3.Impact-abrasion combination requirement: Combine drop-ball impact (GB/T 1732) with abrasion testing to ensure no loss of abrasion resistance after impact.
 

Core Logic Chain of Polyaspartic Abrasion Resistance

Through a three-tier validation system—standard laboratory testing (Taber/Falling sand) → simulated service condition testing (high-temperature/wet/rolling) → on-site performance monitoring—the abrasion resistance of polyaspartic can be quantitatively assured. Its molecular-level wear-resistance mechanism and elastic buffering properties far exceed those of traditional materials, making it particularly suitable for long-term protection in extreme wear conditions.
 
Feiyang has been specializing in the production of raw materials for polyaspartic coatings for 30 years and can provide polyaspartic resins, hardeners and coating formulations.
Feel free to contact us: marketing@feiyang.com.cn
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• Polyaspartic Resin
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