Surface engineering cases & FAQ

First tell us the material grade, what the part is used for, and the problem you want to solve, such as corrosion, wear, sticking or fit dimensions. If you don't know the coating name yet, you can still talk to us first.

Suitability also depends on material state, surface condition, structure and service environment; for special materials or complex workpieces, a sampling plan can be confirmed first.

Just provide the material, quantity and main performance goals. If known, you can add outer dimensions, key tolerances, service media and temperature, and desired processing time.

Once a specific evaluation starts, add the drawing revision, key working surfaces, no-plating zones, target thickness and acceptance requirements; for uncertain items you can choose "ask an engineer to suggest".

Yes. In the first conversation you can describe non-confidential material, use and processing needs.

Before providing sensitive drawings, an NDA can be negotiated and signed first, confirming the purpose of the data, the recipients and the transfer method, before providing approved files.

Target thickness must be determined together with performance requirements and fit tolerances. Please state whether dimensional requirements are before or after plating, and whether machining allowance needs to be kept.

Key locations such as shafts, bores, sealing faces and threads should have measurement points and criteria specified on the drawing; please also state any heat treatment restrictions.

We first need to look at hole diameter, depth, through/blind structure and no-plating zones, and evaluate with fixturing, solution flow and venting conditions.

Coverage and thickness distribution in bores must be confirmed with suitable measurement methods; if necessary, representative samples are made first and sectioning or other inspection methods are agreed.

You can discuss sampling needs first. Providing the number of samples, the performance to verify and the subsequent volume plan helps determine the trial and inspection arrangements.

Sampling cost, required samples and lead time are confirmed per workpiece. After samples are complete, thickness, dimensions and agreed items are checked first, then the volume plan is confirmed.

Quotation requires evaluating material, structure, dimensions, quantity, coating requirements and inspection items. Please also mention any rework, masking or post-machining needs when requesting a quote.

Lead time is confirmed with material arrival, process route and inspection requirements. For split deliveries, provide the quantity and desired date for each batch so we can discuss scheduling together.

Coating thickness inspection can be performed and agreed per batch; the form in which reports accompany shipments is subject to the quotation and technical agreement.

Dedicated salt spray and thickness tests can be commissioned to third-party testing bodies per project; specimen form, test method, cost and lead time are confirmed separately.

First describe the substrate, part use and main performance goals, then add your current process, bath size and production conditions. If you already have a target product, you can provide it directly.

Selection checks coating requirements, pre/post-treatment and existing equipment conditions together, then determines the products and verification items worth trialing.

Trial samples, packaging sizes and minimum order quantities must be confirmed per product. Please provide the products of interest, the test purpose and expected usage.

If usage is not yet determined, you can first describe bath size and test plan, then confirm the supporting products needed for make-up and replenishment and the purchasing arrangements.

Use the complete process documents for the corresponding product to check make-up components, operating conditions, analysis methods and replenishment rules. Components and management methods of different products are confirmed separately.

When contacting us, please state bath volume, equipment configuration, load and existing analysis capabilities so applicable operating and recording requirements can be checked.

We first need to check the existing chemical system, bath operating records, equipment materials and pre/post-treatment flow, then determine the scope of change and test arrangements.

Whether to keep the original bath, how to switch and whether equipment needs adjusting should follow the confirmed plan; do not mix or replace directly just because the coating type has the same name.

Yes, supporting needs such as circulation filtration, automatic analysis/replenishment and automatic make-up can be discussed together. Please provide bath size, existing equipment, site conditions and production rhythm.

Equipment specifications and automation scope must be confirmed with the specific chemical system, then the connections between steps are checked.

Please provide the product name or model, state whether you need the technical data sheet (TDS), safety data sheet (SDS) or both, and specify Chinese or English.

If you already have documents, you can also provide the version or date for checking. The documents and language versions available are confirmed per product.

Please record the product model, when the abnormality occurred, workpiece material and surface phenomenon, and provide recent temperature, pH, analysis and replenishment records, and whether pretreatment or equipment has changed.

Workpiece photos and comparison with normal batches also help diagnosis. We first check the abnormal conditions, then discuss testing and adjustment.

Check storage conditions, shelf life and transport requirements against the specific product's label, SDS and supply documents; each model is confirmed separately.

Before purchasing, you can state the delivery location, expected usage and on-site storage conditions; after receiving the products, check the model, lot number, packaging condition and accompanying documents.