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High Performance Stone Chip Resistance FLTM BI 157-06

The FLTM BI 157-06 high performance stone chip resistance test represents a critical benchmark in the automotive industry, Offering a robust method for assessing the durability of exterior paintwork. By leveraging the capabilities of the stone chip resistance tester VDA model 508, Manufacturers can rigorously evaluate their coatings and innovate towards solutions that withstand the rigors of road use. This not only enhances the vehicle’s aesthetic appeal and longevity but also reinforces the brand’s reputation for quality and durability.

This challenge has led to the development of rigorous testing methods designed to evaluate the stone chip resistance of automotive paints and coatings. A leading protocol in this domain is the Ford Laboratory Test Method (FLTM) BI 157-06, Specifically tailored to assess the resilience of exterior body surfaces against stone chipping. This article delves into the intricacies of this high performance stone chip resistance test, Its application, and the state-of-the-art stone chip resistance tester VDA model 508, Highlighting its significance for manufacturers and consumers alike.

As the automotive industry continues to evolve, The importance of standardized testing methods like the FLTM BI 157-06 remains paramount, Guiding the industry towards higher standards of excellence and consumer satisfaction. In the competitive automotive industry, The durability of exterior paintwork is not just about aesthetics but also about protecting the vehicle from the harsh realities of road use. Among these threats, Stone chipping stands out as a prevalent issue that can mar a car’s surface and significantly affect its resale value.

1 Age test panels according to applicable Engineering Material Specification. Procedure of FLTM BI 157-06
2 Grit blast the test panels for a period of 30 to 35 seconds with 2000 g of the grit using an air pressure setting of 2 bar at 23 +/- 2 °C.
3 Perform water immersion test according to Bl 104-01 for 72 hours|DIN-ISO-VDA-Gravelmeter → Test Apparatus for FLTM BI 157-06 Standard
4 Repeat the grit blasting as specified under procedure 2 within one hour of removing the panel from water immersion.
5 Evaluate by comparison with Evaluation Standards Photographs.
6 All chipping shall be reported. Where possible identify and record the plane in the paint layers where chipping occurs.

The primary application of the FLTM BI 157-06 test method is to provide a standardized and reliable procedure for determining the resistance of automotive paint or coating to stone chipping. This degradation typically occurs when stones or other debris are propelled against the vehicle’s exterior surface, Causing physical damage that detracts from the appearance and integrity of the paintwork. By simulating these conditions, The FLTM BI 157-06 tests offer valuable insights into how well different paint formulations can withstand such impacts, Guiding manufacturers in developing more durable and long-lasting coatings.

The pivotal instrument in assessing stone chip resistance according to FLTM BI 157-06 is the stone chip resistance tester VDA model 508. This advanced piece of equipment is specifically engineered to replicate the high-velocity impacts of stones and other debris on a vehicle’s exterior coatings under controlled conditions. The VDA model 508 allows for precise adjustments of parameters such as impact velocity and angle, Thereby ensuring a comprehensive evaluation of a coating’s protective performance. Notable sources for acquiring this sophisticated tester include Erichsen GmbH and Co. KG and Pearon Panke Ltd., both renowned for their high-quality testing equipment in the automotive sector.

For special tests (e.g.) initial sample, perform the test in triplicate and report the average result. General Information
The stone chip resistance equipment shall be standardized periodically for effectiveness. lf necessary, the air pressure shall be adjusted to correlate with the standards on file at the Materials Laboratory of Product Engineering.
To avoid aerodynamic resistance ensure that the end of the flexible outlet has a ground clearance of at least 50 mm.
Ensure that the grit will produce consistent results. Check grit weight before starting test and subsequently, every 25 cycles, remove used grit to give a weight of 1950 g and make up weight to 2000 g with new grit.
Where loss in use reduces the weight to less than 1950 g do not remove any used shot but make up to 2000 g.

The introduction of a new rating scale within the FLTM BI 157-06 framework has revolutionized how stone chip resistance is quantified. This scale facilitates a more nuanced and accurate depiction of a coating’s durability, Enabling manufacturers to pinpoint areas of improvement and innovation. By employing this updated metric, Companies can more effectively differentiate their products in the market, Offering compelling evidence of their superior protection against stone chipping.

With the demanding requirements of the FLTM BI 157-06 test, sourcing a high-quality stone chip resistance tester becomes paramount. Erichsen GmbH and Co. KG and Pearon Panke Ltd. stand out as reputable suppliers of the VDA model 508 tester. These firms not only provide the necessary equipment but also offer comprehensive support, ensuring that automotive manufacturers can confidently conduct rigorous stone chip resistance testing. Such partnerships are crucial for achieving the high performance standards set by the FLTM BI 157-06 and advancing the development of more resilient automotive coatings.

stone chip resistance test apparatus
Equipment Model DIN-ISO-VDA-Gravelmeter ASTM-SAE-Gravelmeter ASTM-SAE-Gravelmeter-30℃
Circulation Time 0 ~ 30 Seconds 0 ~ 30 Seconds 0 ~ 30 Seconds
Machine’s Real Photo Photo of Gravelometer 1 Photo of Gravelometer 2 Photo of Gravelometer 3
Spray Times 1 ~ 5 Times 1 ~ 5 Times 1 ~ 5 Times
Air Flow Range 0 ~ 0.08 m3/S 0 ~ 0.08 m3/S 0 ~ 0.25 m3/S
Working Pressure 0 ~ 3 Bar ±0.5% 0 ~ 1.0 Mpa ±2.0% 0 ~ 6 Bar ±1.0%
Air Groove Volume 136 Liters 136 Liters 180 Liters
Temperature Range +5℃~ +60℃ +5℃~ +60℃ -30℃ ~ +60℃
Spray Time 8~12 Seconds, 500g 30~35 Seconds, 2000g 30~35 Seconds, 2000g
ID of Shooting Barrel 30.0mm ±0.50 mm(VDA) 52.6mm ±0.75 mm (SAE J400) 52.6mm ±0.75 mm (SAE J400)
Spray Distance 10 ~ 500 mm 10 ~ 500 mm 10 ~ 500 mm
Nosie Level 130 dB 130 dB 85 dB
Power Voltage AC220V, 50Hz, 1.5 kW AC220V, 50Hz, 1.5 kW AC380V, 50Hz, 3 Phase
Max Test Specimen W105mm*D20mm*L150mm W105mm*D20mm*L150mm W195mm*D35mm*L240mm
Impact Media Gravel and Steel Pellets, 500g Gravel and Steel Pellets, 500g Gravel and Steel Pellets, 1000g
Ambient Temperature +5 ~ +35°C +5 ~ +35°C +5 ~ +35°C
Sample Placement Angle VDA: 90°, 45°, 25° SAE: 90°, 45°, 40° SAE: 75°, 54°, 45°
Relative Humidity 30% ~ 85% RH 30% ~ 85% RH 30% ~ 85% RH
Exterior Dimensions W1800*D500*H1250mm W1800*D500*H1250mm W2000*D3250*H1850mm
Equipment Weight 145 KGS 155 KGS 1850 KGS

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High Performance Stone Chip Resistance BI 157-06 → The FLTM BI 157-06 high performance stone chip resistance test represents a critical benchmark in the automotive industry, Offering a robust method for assessing the durability of exterior paintwork. By leveraging the capabilities of the stone chip resistance tester VDA model 508, Manufacturers can rigorously evaluate their coatings and innovate towards solutions that withstand the rigors of road use. This not only enhances the vehicle’s aesthetic appeal and longevity but also reinforces the brand’s reputation for quality and durability. Read more…


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