FLTM BQ 105-01 Corrosion and Salt Spray Compliance Testing
FLTM BQ 105-01 Corrosion Salt Spray Testing is a Ford specific method used to evaluate corrosion resistance for decorative and functional automotive components in an accelerated chamber environment.
Summary of FLTM BQ 105-01 Corrosion Testing
The method is commonly described as being based on the copper accelerated acetic acid salt spray approach, which is often referred to as CASS. It is used to screen plating systems, decorative finishes, and coated assemblies where early corrosion can create appearance defects, loss of function, or supplier approval risk. FLTM BQ 105-01 Corrosion Salt Spray Testing supports consistent decision making because it defines exposure conditions and reporting expectations that suppliers can reproduce.
Corrosion exposure results are only useful when the failure mode is clear. This test is designed to create fast separation between robust finishes and marginal finishes so engineering teams can adjust material selection, pretreatment, and plating process windows before production.
What FLTM BQ 105-01 Evaluates In Automotive Programs
FLTM BQ 105-01 is commonly applied to decorative hardware, bright finishes, trim components, and plated parts where corrosion resistance is tied to perceived quality. It can also support validation of protective systems on steel, zinc alloys, and other substrates that depend on plating thickness, sealing steps, and topcoat compatibility. The primary outcomes are visual and structural indicators of corrosion initiation and progression, including pitting, blistering, red rust, white corrosion products, and loss of finish integrity at edges and features.
Many parts fail first at the locations that are hardest to protect. Sharp edges, stamped features, holes, threads, and contact points can have thinner coating coverage and higher defect density. When the chamber environment is aggressive, these areas often reveal whether the process can maintain protection under realistic manufacturing variation.
Common Failure Signatures And What They Mean
A rapid appearance change on decorative surfaces often points to porosity, weak sealing, or insufficient plating thickness control. Localized corrosion near cut edges can indicate incomplete edge sealing or a part handling step that damaged the finish before exposure. Widespread corrosion across nominal surfaces usually suggests a systemic chemistry or process control issue rather than a one-off sample defect.
Importance of Ford FLTM BQ 105-01 Salt Spray Testing
Corrosion failures are expensive because they are visible, customer facing, and difficult to resolve once production tooling and supply chains are established. Decorative corrosion issues can trigger warranty claims even when the underlying part still functions, because surface quality is part of the vehicle value story. Functional corrosion issues can be more severe, especially when fasteners, brackets, and interfaces lose performance due to material loss or seizure.
Accelerated corrosion exposure also reduces program risk by compressing time. Instead of waiting for long outdoor exposures, teams can compare materials, plating stacks, and process adjustments quickly, then confirm improvements through retest. That fast feedback loop helps suppliers converge on stable process windows, which lowers drift risk during launch and ramp.
Risk Control Benefits For Engineering And Supplier Quality
This method supports supplier qualification by providing a repeatable benchmark for finish durability. It also supports containment decisions when a plating line change or chemical supplier change creates uncertainty. When paired with disciplined documentation, the test becomes auditable evidence that a finish system was validated against an OEM requirement.
How FLTM BQ 105-01 Relates To CASS ASTM B368
The CASS approach is widely recognized as a severe salt fog exposure method that uses a salt solution modified with copper and acetic acid to accelerate corrosion mechanisms. In practice, many organizations align the chamber setup and operational checks to ASTM B368 because it defines the CASS framework and the control concepts that keep results repeatable. FLTM BQ 105-01 typically builds on that foundation, then adds Ford specific expectations for sample preparation, evaluation approach, and reporting structure.
Where Test Plans Often Go Wrong
Most issues come from uncontrolled sample preparation and inconsistent evaluation criteria. If edges are not sealed consistently, or if parts are handled in ways that create micro scratches, the chamber can amplify artifacts into failures that are not representative of real risk. If evaluation language is vague, borderline results can become subjective debates instead of actionable engineering signals.
How To Conduct FLTM BQ 105-01 Testing In A Lab
A good program starts with a test plan that locks sample definition, finish stack details, and acceptance criteria before exposure begins. Sample definition should include substrate, plating layers, coating thickness targets, sealing steps, and any topcoat chemistry that affects barrier performance. The plan should also define how many samples represent each condition so variability can be separated from true finish weakness.
Sample preparation should focus on cleanliness and consistency. Oils, polishing residues, and fingerprints can change local corrosion behavior, especially on decorative finishes. Cut edges and features should be treated consistently across samples so results reflect the finish system rather than inconsistent preparation.
Chamber setup and monitoring should confirm stable temperature control, solution control, and uniform exposure. Orientation and spacing matter because shielding can reduce severity and condensate drip paths can increase severity. Fixtures should resist corrosion and avoid galvanic influence on the specimens.
Post exposure evaluation should be structured and traceable. Programs often use visual grading, photo documentation at defined milestones, and targeted microscopy or cross section review when thickness or layer integrity needs confirmation. Reporting should tie findings to the acceptance criteria with clear pass-fail statements and a separate section for deviations and corrective actions.
What To Include In The Compliance Report
A complete package typically includes test setup diagrams, sample identification photos, chamber condition logs, calibration status for key measurement devices, and the full set of observations tied to the criteria. When a failure occurs, the report should capture location, size, and defect type, then document corrective actions and retest scope. This structure supports supplier review and keeps the data usable for future process control work.
Related Standards And Services For Corrosion Programs
Corrosion testing programs often extend beyond a single chamber exposure. When parts must meet multiple OEM requirements, supporting methods like ASTM B368 for CASS and ASTM B117 for salt spray can provide broader comparability across customers. For assemblies exposed to seasonal cycling, SAE J2334 can provide cyclic severity that better reflects wet dry transitions.
Applus+ Reliable Analysis includes Corrosion Salt Spray capability that lists FLTM BQ 105-01 in the same category as CASS ASTM B368, which supports programs that need Ford method execution with traceable reporting.
Expert FLTM BQ 105-01 Salt Spray Testing Laboratory
FLTM BQ 105-01 Corrosion Salt Spray Testing provides a structured way to identify corrosion risk in plated and coated automotive components using a severe accelerated exposure approach aligned with CASS style methods. When corrosion risk spans both appearance and function, pairing this Ford method with complementary corrosion standards can provide clearer durability coverage across service environments.
Applus+ Reliable Analysis supports Corrosion Salt Spray testing that includes FLTM BQ 105-01 and CASS ASTM B368 within its accredited mechanical scope.
Request a quote to start testing so you can confirm sample quantity, acceptance criteria, and reporting format for the program. Additional corrosion work such as ASTM B117 salt spray or SAE J2334 cyclic corrosion can be included to expand durability evidence across multiple exposure types.
