Custom Die Cut Adhesive Parts From Only a Sample

Technical guidesPublished 07 November 2026Updated 07 November 2026

A physical sample can be reversed into a production drawing: measure the layer stack, copy the outline, confirm material and use, and the achievable tolerance on your geometry gets stated against the drawing before tooling is cut. Buyers arrive with one clean part and no file more often than procurement people admit, and for custom die cut adhesive parts the sample is a legitimate starting document, provided everyone understands what it carries and what it silently omits.

What the part already tells you

A thickness gauge resolves the stack: total build, and after a careful peel, the carrier, the adhesive layer and the liner as separate items. The cut edge records the route it came from; a laser edge looks different from a die edge, and a die line raised at the shoulder says a flat-bed rule was bent around that radius. The liner's colour and slip say something about release class, PET from glassine, easy-release from standard. The layout on the liner shows matrix handling: stripped waste leaves clean lanes between parts, weeded parts leave tool marks at the tabs. Nest spacing tells you what the previous supplier thought about material use, whether or not they were right.

What the part cannot tell you

Four omissions decide the quote, and none of them are visible in the part. Which dimensions matter: a hole 0.2 mm off centre is free or expensive depending on what it mates to, and only your assembly answers that. The release spec: the sample feels right to your thumb, your picker's vacuum nozzle disagrees, and release force is a number, not an impression. The annual volume: it moves the cutting route between flat-bed, rotary and laser, and the route moves the cost structure. And whether the sample itself is representative: many samples were prototypes cut on a different route than production will use, which is how parts arrive dimensionally fine but edging wrong.

How the reversal actually runs

Send the part; do not send a photograph of the part. In review we clean it, measure the stack and record each layer, scan or CMM the outline into a DXF, then draft a drawing with datums chosen from the function: where the part sits, what it covers, what the liner must do after placement. We mark the dimensions that need your confirmation rather than tolerancing everything equally. Material gets proposed from the surfaces and the load, and where a branded construction was used before, we cross-reference against what we can supply and convert in-house; equivalence is decided by test reports on your substrate, never by a part-number match. Where the stack includes an in-house laminate, adhesive layers read 10 to 60 µm per side, PET release liners 25 to 100 µm. The quotation then returns as custom die cut line items: material, tooling, conversion, each priced for what the reversal found.

The drawing review before any tool is cut

The draft returns to you with four decisions written on it: the tolerance we can hold against your geometry, stated on the drawing rather than as a generic figure; the cutting route chosen for thickness, volume and outline; the liner format matched to how the part is fed; and the matrix strategy, stripped, weeded or back-perforated. Our die-cutting tolerance guide explains how tolerance language works and why a supplier offering one generic figure for every geometry before seeing a drawing is selling a number, not a process. On a die-cut roll-vs-sheet or kiss-vs-through question, the same rule applies: geometry and feeding method answer it, not habit.

The material range we reverse into

We convert PET, foam, non-woven, transfer tape, PI, aluminum foil, conductive tape and laminates, and the families carry their own thickness bands: foam tapes 0.4 to 3.0 mm total, functional PI and PET films 0.03 to 0.3 mm by grade, double-sided constructions 0.05 to 1.0 mm and customisable. A sample outside those bands is not a refusal; it is a signal that the construction may be coated rather than laminated, and that changes who should make it. The die-cut parts page lists what we cut daily.

The mis-sends that delay a quote

The photograph without dimensions, because a lens lies about scale at 3 mm. The instruction to match another brand's part number, because what we can and cannot match is a test result, not a claim. The sample with no material note and no use note, which turns two hours of reversal into two weeks of email. The assumption that the liner is irrelevant; on die-cut adhesive parts the liner is half the product, because it is what your line actually touches. And "make me ten thousand," sent before anyone has said how the part is picked, placed and loaded.

Seven checks before you post the sample

1. Note the surfaces it bonds to, with finishes and any treatment.
2. Note what the part does after placement: load type, dwell before load, temperature.
3. Mark the two or three dimensions that actually mate to something.
4. Say how it is fed to the line: hand, sheet, roll, slit liner, nozzle.
5. Give the annual quantity band and the launch window.
6. State whether the sample is a prototype or a production part.
7. Include a photo of the station, not only of the part.

The first question everyone asks

Do I need a CAD file to get a custom die cut quote?

No. A PDF, DXF or STEP drawing is the fast path, but a clean sample with the seven notes above is enough to produce a drawing for your approval, and a dimensioned photograph can start the conversation if shipping is the problem. What no file substitutes is the use case: the review needs to know what the part meets, what it carries and how it is picked, because those three answers decide tolerance, liner and route before anyone cuts a tool. The converting services page shows where the drawing review sits in the process, and the glossary defines the liner and matrix terms the drawing will use.

Commercial and process terms on this page are the questions a converter has to answer, not a standing offer. Order quantities, lead times, tooling charges, sample terms, freight and payment structures are confirmed at quotation against your drawing, your material and your destination, and only figures already published elsewhere on this site are stated as commitments.