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ASTM G 155 Xenon Light Fastness Test Chamber for Automotive Paint Durability Testing

Oct 14 2025

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Automotive coatings are constantly exposed to sunlight, heat, and moisture, which can lead to fading, cracking, and peeling. Such degradation impacts vehicle aesthetics, reduces customer satisfaction, and can harm brand reputation. To proactively address these challenges, LIB Industry provides the Xenon Light Fastness Test Chamber, designed specifically for automotive paint durability testing. This advanced solution enables laboratory-accelerated aging simulations, delivering repeatable, standards-compliant results. By using this xenon fastness tester, manufacturers can evaluate coating performance before real-world exposure, reducing risk and improving quality.

Advanced Xenon Fastness Tester Technology to Simulate Real Sunlight

The xenon arc exposure apparatus from LIB Industry replicates natural sunlight across the full 280–800 nm spectrum, including UV, visible, and infrared radiation. This ensures precise, accelerated aging tests for coatings, plastics, and automotive components.

Key Technical Specifications:

Parameter	Specification
Irradiation Source	4500 W water-cooled xenon arc lamp (inner quartz + outer borosilicate filter)
Irradiance Range	35–150 W/㎡
Chamber Temperature	Ambient–100 °C ±2 °C
Black Panel Temperature (BPT)	35–85 °C ±2 °C
Humidity Range	50–98 % RH
Water Spray Cycle	1–9999 H 59 M (adjustable)
Rotating Sample Holder	Adjustable speed 1 r/min, supports flat & irregular parts

This xenon fastness tester complies with ASTM G151, G155, D6695, ISO 11341, and D7869, providing reliable, traceable results for R&D and quality control.

Five Key Advantages of LIB Industry Xenon Arc Chamber

1. Full-Spectrum Solar Simulation – Optional Daylight, Window Glass, and Extended UV filters replicate various sunlight conditions.

2. Precise Temperature & Humidity Control – BPT maintained at ±2 °C and chamber humidity at ±2.5 % RH ensures consistent degradation rates.

3. Programmable Exposure Cycles – Illumination, spray, and dark periods are fully adjustable for realistic simulation.

4. Rotating Sample Holders for Uniform Irradiation – Guarantees consistent testing for large panels and irregular automotive components.

5. Standards Compliance & Traceable Data – Fully meets ASTM and ISO requirements, enabling reliable batch-to-batch comparisons.


Full-Spectrum Xenon Arc Lamp	Remote Control and Data Export

Typical Automotive Paint Testing Procedure

· Sample Preparation: Coated panels or automotive parts

· Exposure Design: Programmable illumination, spray, and dark periods

· Evaluation Metrics: Color change (ΔE), gloss retention, cracking, delamination

· Reporting & Analysis: Automated CSV/PDF export for R&D and quality control

Example Exposure Cycles

Cycle Type	Illumination	Spray	Dark Period	Notes
Cycle A	102 min	18 min	–	Standard ASTM G151 simulation
Cycle B	90 min	30 min	6 h	Extended moisture + dark simulation
Cycle C	1.5 h	0.5 h	1 h	Fast R&D evaluation

This accelerated testing allows manufacturers to optimize coatings, validate formulations, and ensure batch consistency.

Customization Options of LIB Industry Xenon Light Fastness Test Chamber

Customization	Options
Workroom Size	Custom workroom capacity
Sample Holder	Flat, rotating, multi-tier, adjustable speed
Controller	Touchscreen PID, programmable profiles, remote monitoring
Filters	Daylight, Window Glass, Extended UV
Water & Spray System	Adjustable cycles, closed-loop recovery
Optional Add-ons	Hydrogen peroxide integration, data logging modules

LIB Industry can tailor chambers for different automotive components, from small panels to full-size parts.

Xenon Light Fastness Test Chamber VS UV Test Chambers

Feature	Xenon Arc Chamber	UV Test Chamber
Light Spectrum	Full 280–800 nm	UV-focused 280–400 nm
Applications	Outdoor coatings, automotive parts, plastics	Indoor plastics, preliminary R&D
Environmental Simulation	Light + Temp + Humidity + Spray	UV irradiation with optional humidity/condensation
Recommendation	Full sunlight simulation for real-world durability	UV-only degradation testing or early R&D

For automotive paint durability, LIB recommends the xenon arc exposure apparatus to ensure accurate outdoor performance evaluation.

Why LIB Industry Is the Trusted Partner

· Standards Compliance: ASTM G151, G155, D6695, ISO 11341, D7869

· Precision & Reliability: BPT ±2 °C, ±2.5 % RH, real-time irradiance monitoring

· Customizable & Flexible: Sample holders, filters, spray systems, optional add-ons

· Automation & Traceability: PID control, programmable cycles, remote monitoring, automated report export

· Sustainability & Efficiency: Closed-loop water recovery, energy-efficient lamp cooling

· Global Service & Support: 3-year warranty, lifetime maintenance, 24/7 English-speaking support, 7–15 days fast shipping

Call to Action – Get Your Exclusive Xenon Fastness Testing Solution in 1–3 Hours

Don’t wait for outdoor failures to compromise your automotive coatings. Contact LIB Industry today inquiry@libtestchamber.com with your testing requirements and receive a customized quotation and solution within 1–3 hours. With decades of experience, ready-to-ship stock, and global service points, LIB Industry ensures your Xenon Light Fastness Test Chamber delivers accurate, repeatable, and traceable results, accelerating R&D, quality control, and material validation worldwide.

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