Overseas automotive adhesive project FAQ

Start with the component, production country, vehicle destination markets and project stage. A door-panel wrapping trial and an illuminated-trim laminate need different evidence. Send a layer-by-layer material description, the current bonding process, annual volume estimate and the customer specification with its revision. Identify the decision you need: a material shortlist, samples, document review or a production trial. The product overview helps identify relevant material families; it does not establish approval for your part.

Match the inquiry to the intended use. The R-5670 product page describes a two-component water-based polyurethane system used with R-60C for interior bonding evaluation. The R-5110 product page covers one-component water-based polychloroprene for foam and porous acoustic materials. For illuminated trim, review the R-5610 product page and RY-10 product page. Send the actual substrate pair and process constraints before selecting a grade. These public application descriptions are starting points for testing, not universal compatibility claims.

List every layer that the adhesive contacts, including the resin grade, skin backing, foam or textile, coatings, primer and any recycled content. Include thickness, supplier and grade identifiers, surface texture, colour, expected production variation and known release agents. A label such as PP or PVC alone is insufficient to reproduce a trial. Send drawings or cross-section photographs and identify the bond area, edges, bends and highly stretched regions. Use representative materials from the intended production supply chain.

Provide the vehicle destination markets and the exact OEM or component specification, including revision, test method and acceptance limit. Separate requirements for the adhesive as supplied from requirements for the finished interior part. VOC, odour, fogging, flammability and restricted-substance requests need a defined sample and scope. Ask which current documents are available for the proposed grade and identify any gaps before testing. A product webpage or another project's test result does not establish compliance for your market.

No. A shortlist identifies candidates for evaluation; approval depends on your substrate grades, equipment, process window and agreed test criteria. Define who approves the material and who releases the finished part. Plan coupon screening, a representative component trial and production validation as separate decisions. Ask for the scope behind a published application or report, including sample identity and test conditions. Do not transfer an approval between vehicle programs or use an interior-bonding example as evidence for a safety-critical joint.

Specify the candidate grade, intended trial quantity, matching hardener where applicable, receiving country and trial date. Agree on the substrate sample set, required TDS/SDS versions, batch identification, unopened storage conditions and the tests to be performed. Confirm sample availability, packaging and shipping arrangements with RELANET before scheduling a line trial. Record the received batch and condition on arrival, and retain labelled material and bonded specimens so any later result can be traced to the same trial.

Record the substrate grade and moulding history, release-agent risk, cleaning method, treatment type, settings and time between treatment and bonding. Include flame, plasma, corona or primer only where that process is actually used and suitable for the part. Use the surface-treatment guide to plan wetting checks and bond tests. Dyne level or contact angle can support process monitoring, but neither alone proves durable adhesion. Validate the treated substrate with the proposed adhesive and agreed ageing conditions.

Provide the spray equipment, nozzle, material preparation, pressure settings, spray distance, pass pattern and coverage on each bonding surface. Record wet coat weight or the agreed measurement basis, line speed, ambient temperature and humidity. Attach photographs of the wet and dried coating, including edges and recessed areas. Set the trial window using the current grade-specific TDS and equipment capability; do not copy another product's spray settings. The LK2C process video and transcript shows one process sequence for discussion, not a universal operating recipe.

Document each stage separately: drying time and air conditions, measured adhesive or substrate temperature during activation, transfer time, pressing pressure and duration, cooling before release, and conditioning before testing. Record the actual part temperature rather than only a heater setpoint. The LK2C process video and transcript shows drying, infrared reactivation, pressing and cooling in one door-panel process. Use the current TDS and trials to set your limits. Dry appearance, handling strength and final bond development are different checkpoints; none should be substituted for the agreed test age.

Confirm the exact adhesive and hardener identifiers, current document revisions, mixing ratio and whether that ratio is by mass or volume. Agree on mixing equipment, mixing time, usable working time and how mixed material is identified and controlled during stoppages. Request instructions for both components before use; do not adjust hardener content to compensate for an unexplained bond failure. The R-5670 product page and R-5670/R-60C bond-strength report describe the published system, while your issued TDS and validation plan govern the trial settings.

Email [email protected] with the product model, matching component if any, receiving country, intended use and required document language. Request the current issued Technical Data Sheet and Safety Data Sheet, and verify the product identifier, revision date and applicable scope against the sample label. Product webpages provide selection context; they are not substitutes for issued documents. For two-component systems, confirm the documents for each component. Keep the agreed versions with the trial record and request clarification if the documents and label differ.

State the language and destination country when requesting documents, and ask RELANET to confirm what can be supplied for the exact product. The availability of a translated website does not establish the availability or regulatory suitability of a translated SDS. Agree on the controlling document version and who will review any translation before material is handled or imported. Avoid translating mixing ratios, units or hazard instructions informally for operators; resolve unclear wording against the issued source document.

Confirm the product-specific storage and transport conditions, shelf life, packaging and handling instructions using the issued documents and the supplier's shipping information. Give the buyer, seller and logistics provider the intended route, transport mode, seasonal conditions and expected time in transit. Check how the agreed conditions will be maintained during transfer and receiving. Do not infer a transport classification from the phrase water-based. Report damaged packaging or suspected temperature excursions before releasing the material for a trial.

The buyer and seller should agree on the destination, consignee, importer responsibilities, delivery terms and the documents needed for the specific product and route. Confirm the requirements with the appointed logistics provider and the responsible import specialist before shipment. Request the product identity, packaging details and current SDS as inputs to that review. This FAQ does not assign a customs code or promise that a material can enter every market; those conclusions require the actual product information and destination requirements.

Build a document checklist for the proposed grade and project: current TDS/SDS, batch release information or COA if required, requested substance declarations, and the specific test reports used in the approval decision. Ask RELANET to confirm availability, validity and scope for each item. Review management-system credentials separately from product or component test evidence. A logo, family-level statement or unrelated report is insufficient: verify the issuing party, date, sample identity, test method and any limitations before closing a requirement.

Describe the full optical stack, light source, viewing surface and intended appearance: clear transmission, diffuse illumination, hidden-until-lit graphics or uniform ambient lighting. Include film or coating thickness, substrate colour, forming strain, light-source position and allowed visible defects. Review the R-5610 product page and RY-10 product page as application references. Select the test construction with the optical and bonding teams together, since a material that transmits light in isolation can behave differently under a textured or coloured skin.

Agree on the method, instrument settings, sample thickness and conditioning before comparing optical figures. Record whether a result measures the adhesive alone, a dried film or the complete laminate, and whether it is spectral or total transmission. For appearance, define the light-source spectrum, brightness, viewing angle and measurement positions. Compare samples at the same construction and conditions. A single high transmission value cannot establish acceptable haze, colour, light uniformity or bond durability for your finished trim.

Specify the complete bonded construction, its expected light and heat exposure, and the customer's ageing method and limits. Agree on exposure conditions, duration, specimen conditioning, measurement intervals and the colour or yellowness metric before the test. Record both optical change and bond condition, including haze, cracks, edge lift and peel performance where required. Accelerated exposure supports a defined comparison; it does not establish a number of years in service without a validated relationship to the actual environment.

Use a published result to frame a test request, then obtain the report conditions and confirm whether they match your construction. Check the product grade, film thickness, substrate, instrument, test method, conditioning and sample count. Ask whether the result is typical data, a controlled specification or a project-specific finding. Write acceptance criteria for your own part with the responsible customer team. Do not convert an isolated transmission or yellowing result into a guaranteed minimum for every thickness, colour or processing condition.

Review changes to substrate grade, skin colour or texture, film thickness, primer, drying or activation conditions, forming strain and light-source design. Record the previous and proposed stack and decide which bond, appearance and ageing tests must be repeated. The R-5610 product page and RY-10 product page describe material contexts, not blanket permission to substitute layers. Keep comparison specimens and process records so any shift in haze, yellowing, light distribution or adhesion can be traced to the change.

The R-5670/R-60C bond-strength report describes PVC with knitted backing bonded to flame-treated PP. In the reported company test, 25 mm specimens were peeled at 180 degrees and 200 mm/min: the average was 25 N/25 mm one minute after bonding, and approximately 60 N/25 mm after seven days. The stated 23°C ± 5°C is the final-strength measurement temperature. These are results for that construction and method. Request the original report details and test your own materials before using them in a project decision.

The LK2C process video and transcript documents an R-5670/R-60C door-panel process and presents a summary of project test outcomes. It is useful for discussing mixing, spraying, drying, reactivation and pressing. The page distinguishes the reported five required tests from an additional internal 100°C hot-peel check. Use the original reports to assess methods and acceptance criteria; the additional check is not one of the five stated passed tests. The video does not prove that different substrates, equipment or a new program will achieve the same results.

Agree on the intended process window and acceptance criteria, then test representative materials at the planned settings and selected limits. Include normal production variation, start-stop conditions, difficult geometry and relevant substrate batches. Record coat weight, drying, activation, transfer, pressure, release and conditioning alongside results. The headliner bond-test planning guide offers a planning example; adapt the construction and methods to your component. Separate screening observations, pilot acceptance and the customer's production-release decision in the final trial record.

A usable result identifies the substrate stack, adhesive batch and preparation, bonding settings, time before testing, specimen geometry, test method, exposure conditions and acceptance limit. Record strength and failure mode before and after the agreed ageing sequence, together with sample count and any exceptions. The R-5670/R-60C bond-strength report shows why method and construction belong beside the reported result. Do not compare values from different peel angles, speeds, test ages or ageing conditions as though they describe the same property.

Translate the accepted trial window into a documented control plan covering material identity, storage, mixing where applicable, coating, drying or activation, joining and conditioning. Agree on first-piece checks, process records, batch traceability, retained specimens and response to an out-of-limit result. Define which material, equipment or process changes require review and revalidation. A successful pilot demonstrates the tested conditions; consistent series production also requires control of normal variation and approval of the actual production process.

Email [email protected] with a short project brief and the following information:

• Company, plant country, destination markets, component and project stage.
• Substrate grades and layer stack, surface preparation and the intended adhesive use.
• Spray or application equipment, drying, activation, pressing and conditioning constraints.
• Customer test methods and limits, current problems, required TDS/SDS language and revision needs.
• Trial quantity, target schedule and the decision or document you need next.

Attach photographs or drawings that you are authorised to share, and identify missing information explicitly.

Provide annual part volume, bond area, measured coat weight or film consumption, process loss, reject rate and the relevant drying or activation steps. Compare cost per acceptable component at a defined process window, not only price per kilogram. Identify assumptions such as solids content, coverage and rework separately from measured values. Request a quotation for a specified grade, quantity and delivery scope; this website does not establish a price, available inventory or a guaranteed saving for your line.

List the decisions and their owners: document review, sample availability, shipping confirmation, coupon tests, component trials, customer approval and production release. Share the target dates with RELANET and ask which material and document arrangements can be confirmed. Allow for the actual ageing and conditioning periods in your test plan and resolve missing inputs before booking a line trial. Delivery timing, order quantity and any continuing supply arrangements need project-specific confirmation; an inquiry or published application is not a supply commitment.

Send the affected part and material identifiers, adhesive and hardener batches, document versions, process records, time of failure and comparison samples from acceptable production. Include photographs showing both sides of the failed interface and state whether failure occurred before or after ageing. Note recent changes in substrates, cleaning, equipment or ambient conditions. Use the wrapping failure-analysis guide to organise the investigation. Preserve labelled specimens and review the evidence before changing several settings or increasing hardener content.

Use the product overview for candidate materials, the R-5670/R-60C bond-strength report for a published method-and-result example, and the LK2C process video and transcript for the documented process sequence and transcript. Send the exact page or model you are referring to, your project brief and the unresolved questions to [email protected]. State whether you need issued TDS/SDS documents, a sample discussion or a review of trial conditions. Document availability, language, sample arrangements and next steps should be confirmed for your specific project.