Custom Blue PET Fixing Tape: Adhesion, Width and Roll Specifications

A Practical Five-Step Sample Qualification Process

A useful approval process tests the tape and the converted roll together. The sequence below is a practical starting point; the number of samples and duration of trials should follow the customer’s risk assessment and production requirements.

1. Review the assembly process

Record the actual substrate, tape width, parts being fixed, application method, line speed, expected holding time, removal step and likely temperature exposure during transport or storage.

2. Agree on specification and methods

Define the target peel adhesion and initial tack using agreed test methods. Specify the test surface, dwell time, removal angle or speed, residue criteria and any relevant holding-power requirement.

3. Test representative production parts

Apply sample tape using the real fixture or assembly method. Evaluate bonding, repositioning if needed, clean removal, surface marks and any visible adhesive transfer on the actual components.

4. Run a controlled production trial

Test the approved candidate at the intended line speed and representative environmental conditions. Inspect feed stability, unwind behavior, positioning accuracy and removal results. Agree trial quantity with the customer rather than assuming a universal batch size.

5. Freeze the approved roll specification

Confirm slit-width tolerance, core size, roll length, winding direction, splice rule and incoming inspection checks. Any die-cut format or removable liner should be separately approved if included in the final construction.

Troubleshooting Common Problems After Approval

When a fixing tape fails in production, first compare the current lot, substrate, application method and environmental conditions with the approved sample. The following patterns can help direct an investigation.

Edge lifting on curved plastic parts

Possible causes include insufficient conformability, contamination, unsuitable adhesive or application tension. Compare film flexibility and peel performance on the actual curvature before changing film thickness or adhesive.

Unstable feeding or unwinding

For linerless rolls, check release-coating consistency, winding tension, roll alignment and core fit. For a confirmed lined construction, also check liner release force and equipment settings.

Adhesive transfer following warm transport

If residue appears after transit, reproduce the relevant time-temperature exposure and test removal on the affected substrate. A specified transport-temperature example is not evidence that every shipment reaches that temperature.

Width variation between batches

Compare incoming roll width against the agreed tolerance and check whether the tape still covers the intended fixing area without excessive overhang.

What to Include in a Custom Blue PET Tape RFQ

A useful RFQ identifies the tape’s function before asking for a price. Include the component drawing or photos, the substrate material, holding and removal requirements, expected volume and how the tape is applied.

Add the target width and tolerance, roll length, core dimensions, winding direction, removal timing, test conditions and any need for special converting. Review the PET tape range and Blue PET Positioning Tape for Refrigerator Parts, then submit representative parts or photos with the specification.

Ask the supplier which parameters can be maintained in serial production and what test methods will be used for incoming inspection. A reproducible specification is more valuable than a single sample that happens to work.

Jiangsu Shixin Adhesive Tape Product Co., Ltd. (Shixin Tape), established in 2005, manufactures industrial adhesive tapes and provides converting support for selected PET fixing-tape applications. The applicable film, adhesive, release treatment and custom roll options should be confirmed against each product grade. Current quality-system certificates and product-specific regulatory test records can be discussed upon request.

Frequently Asked Questions

Is a custom blue PET fixing tape always more expensive than a standard roll?

Not necessarily. Pricing depends on the selected construction, processing requirements, quantity and converting format. Compare total application cost, including line stoppages, removal defects, rework and changeover time, rather than assuming a custom roll always costs more per assembly.

What slit-width tolerance should I specify?

Start from the smallest dimension and alignment allowance of the actual component. State the nominal width and acceptable tolerance on the drawing, then ask the supplier to confirm the achievable production range.

Can the same PET fixing tape be used on ABS and pre-coated metal?

Possibly, but suitability must be established on both substrates under the intended dwell and removal conditions. If the results differ significantly, evaluate different adhesion grades or a different application method.

How long does sample approval take?

Timing depends on the grade, roll format, number of tests and customer approval requirements. A clear specification and representative component samples can reduce revisions; confirm the actual sampling and production schedule with Shixin Tape.

Discuss your refrigerator PET tape application: send Shixin Tape your substrate, roll specification, holding period and removal requirements through our contact page to discuss sample or technical-data availability.