What is ASTM Tested Coatings and Why It Matters

Why ASTM Testing Matters ASTM International is one of the most respected standards organizations in the world, providing rigorous testing protocols for materials and coatings across industries. ASTM tests are scientifically structured to simulate real-world stresses such as impacts, corrosion, UV exposure, and thermal cycling.

At P1 Smart Repairs, we follow ASTM testing standards to validate each stage of our coating process. This ensures that every primer, paint, and clear coat layer performs to the highest expectations of strength, flexibility, and durability. Our commitment to ASTM standards reflects our core values: craftsmanship, transparency, and long-term performance.

When you choose P1, you’re not just getting a cosmetic finish—you’re getting a coating system engineered to outlast and outperform, backed by globally recognized testing methods.

Comparison of Coating Layers & Benefits:

Coating Layer	ASTM Highlights	Key Benefits
Etching Primer	Salt Spray: 1500 hrs (B117)Humidity: 2000 hrs (D2247)	Excellent corrosion resistanceImproves base adhesion
Powder Primer	Impact: 60 in.lbs (D2794)Flexibility: 80%+ (D1737)	Provides mechanical strengthBuilds a strong base for color
PPG Solvent Paint	High pigment saturation	Color depth and edge coverage
Clear Coat	Impact: 100 in.lbs (D2794)Flexibility: 100%Gloss: 90% ±5%	UV protection, gloss retentionScratch and impact resistance

This engineered, multi-step coating architecture ensures the highest standards in finish quality, adhesion, and longevity, setting P1 Smart Repairs apart as a leader in the automotive refinishing industry.

ASTM-Tested Coatings All coatings applied at P1 Smart Repairs are tested according to ASTM (American Society for Testing and Materials) standards. This ensures our finishes meet or exceed industry benchmarks for:

Salt spray corrosion resistance
Adhesion strength
Abrasion durability
Thermal cycling endurance

Full List of Coatings and Tests at P1 Smart Repairs

P1 Smart Repairs Aluminum Primer Coating for 6061 T6 Treated and 356A Wheels
Test	Method	Parameters	Result
Salt Spray	ASTM B117	1500 Hours	No Effect
Humidity	ASTM D2247	2000 Hours	No Effect
P1 Smart Repairs Aluminum Top Coatings for 6061 T6 Treated and 356A Wheels
Hardness	ASTM D3363	Pencil	2H
Abrasion	ASTM D4060	CS 17, 2 Kg, 1000 Cycles	Less than 100 mg
Adhesion	ASTM D3359	Cross-hatch tape	0% failure
Flexibility	ASTM D1737	1/8” mandrel	No cracking
Salt Spray	ASTM B117	2000 hours	No effect
UV Resistance	ASTM G53	2000 hours QUV A	> 90% gloss retention
Impact	ASTM D2794	Direct Reverse	140 Direct, 80 Reverse
Solvent Resistance	ASTM D4752	MEK 100 rubs IPA 200 rubs	No effect
Chemical & Stain Resistance	ASTM D1308 30 min. spot	IPA, hydrogen peroxide, 409®, toluene, hydrochloric acid, textile spirits, amyl acetate, trichloroethylene, methanol, ethylene dichloride, lacquer thinner, xylene, ethanol, ammonia, tap water, Lanolin lotion, coffee, tea.	No Effect

ASTM B117 (Salt Spray Test): This test evaluates the coating's resistance to corrosion that can be caused by exposure to salt (from road de-icing salt or sea spray), which is critical for wheels used in coastal areas or regions with snowy winters.

ASTM D2247 (Humidity Test): It assesses how well the coating can withstand prolonged exposure to high humidity without deteriorating. This is important for preventing rust and maintaining the integrity of the wheel's appearance.

ASTM D2794 (Impact Resistance Test): This test measures the coating's ability to resist cracking or chipping when impacted by hard objects. It simulates common damage scenarios, such as stones hitting the wheel surface while driving.

ASTM G154 (UV Exposure Test): It tests the coating's ability to maintain its color and gloss when exposed to ultraviolet (UV) light over time. This ensures that the wheel's appearance will not degrade quickly when exposed to sunlight.

ASTM D3359 (Adhesion Test): This method evaluates the adhesion of the coating to the wheel's surface. Proper adhesion is crucial for the longevity of the coating and to prevent peeling and flaking.

ASTM G155 (Xenon Arc Test): Similar to ASTM G154 but uses a xenon arc light source to simulate the full spectrum of sunlight, including UV, visible light, and infrared (IR). This test provides a comprehensive assessment of how well the coating will hold up under prolonged exposure to sunlight.

ASTM D4060 (Abrasion Resistance Test): Assesses the coating's resistance to abrasion, such as wear from tire changes, cleaning, and the impact of road debris. This test helps ensure that the wheel coating remains intact and visually appealing even under rough conditions.

ASTM D2794 (Impact Test): The primary objective of this test is to test and provide a way to measure the strength and durability of a coating via impact on a specified and controlled weight and height. This test is intended to simulate real world conditions which the coating will be subjected to during use.

ASTM D4752 and ASTM D1308 (Solvent, Chemical and Stain Resistance: The purpose of this test is to measure the coating’s resistance to solvents and chemicals the coatings might potentially be exposed to during use such as harsh cleaning chemicals, debris and other potential use cases. The ensures the coatings keeps the integrity of its color, shine and intended look.