ASTM D522 Mandrel Bend Test of Attached Organic Coatings
ASTM D522 is a widely recognized standard that provides test methods for evaluating the flexibility and adhesion properties of organic coatings on substrates. ASTM D522 methods are useful in rating attached coatings for their ability to resist cracking when elongated. ASTM D522 test involves bending a coated panel around a mandrel to assess the coating's ability to withstand deformation without cracking or detachment. Test results can be expressed either in SI units or inch-pound units.
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Introduction to ASTM D522
ASTM D522 establishes standard test methods for performing the mandrel bend test on attached organic coatings. Coatings attached to substrates are elongated when the substrates become dimensionally unstable during the manufacture or end-use of articles. The test is designed to simulate the bending and flexing that coated surfaces may experience during service or application. By subjecting the coating to controlled deformation, ASTM D522 helps determine its resistance to cracking, delamination, and loss of adhesion, which are critical factors for maintaining the protective and aesthetic properties of coatings.
ASTM D522 is commonly used in industries such as automotive, aerospace, and construction to ensure the quality and durability of coated surfaces. MaTestLab has the best network of testing labs in the USA to carry out ASTM D522 test for our clients.
ASTM D522 Test Method
The test includes the following key test methods for the mandrel bend test:
Test Procedure
The coated panel is bent around the mandrel with a specified diameter until a failure criterion is met. After bending, the coating is visually inspected for any signs of cracking, detachment, or other coating defects.
Data Analysis and Reporting
The results of the mandrel bend test indicate whether the coating passed or failed based on the observed coating condition after bending. The test also provides information on the extent of coating damage, such as the minimum bend diameter achieved before failure.
ASTM D522 Specimens
Specimen details
ASTM D522 employs a series of mandrels made of a smooth, rigid material such as metal or glass.
Specimen dimensions
The dimensions and thickness of the specimens are defined in accordance with the specific requirements for each product grade.
Specimen preparation
The panels are typically prepared by applying the organic coating onto a suitable substrate according to the specific coating system and application process.
ASTM D522 Results
The results of ASTM D522 indicate the performance and integrity of the tested organic coating after undergoing the mandrel bend test. The key results include the visual inspection of the coated panel and determine whether the coating meets the specified failure criterion, such as a minimum bend diameter or a specific coating condition after bending. Per requirement, test results can be expressed either in SI units or inch-pound units.
Tests Related to ASTM D522
ASTM D3363: Standard Test Method for Film Hardness by Pencil Test is a related standard. The elongation of coating films may also be tested using Test Method.
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How much do I need to pay for the astm d522 test?
Please contact us for a detailed quote for your astm d522 testing needs. Cost incurred to carry out different astm d522 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm d522?
The required number of samples or specimens should comply with the procedure given in the astm d522 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
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MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm d522 test?
The turnaround time for astm d522 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm d522 tested?
You can share your astm d522 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d522 test to various testing techniques.
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