Cluster 6 · Buyer / Procurement Guide · Ordering
Buying custom acrylic is a document problem before it is a price problem. Factories quote what is written: sheet route, thickness, finish, hardware, quantity, destination, and inspection. A photo of a competitor’s fixture is a starting sketch, not an RFQ. This guide walks from first email through sample, bulk, inspection, pack, and ship — and separates general procurement practice from one factory’s commercial terms.
How to order custom acrylic products
Working sequence. Inquiry → clarifying questions → quotation → drawing freeze → paid sample → sample sign-off → bulk deposit → production → inspection → balance and ship. Skipping sample sign-off on a new construction is the usual source of “not what we pictured.”
- Send a sketch, photo, or CAD plus quantity and destination (see files).
- Agree sheet route, thickness, finish, and hardware in writing.
- Approve a physical sample, not only a render.
- Freeze the drawing. Changes after freeze are a new quote.
- Confirm pack, marks, and Incoterms before the carton is sealed.
Material and product decisions that belong upstream of this sequence: how to choose acrylic and acrylic product types.
How to prepare an acrylic RFQ
An RFQ that a factory can price without a follow-up email contains at least the following. Missing items are not “flexible.” They are guessed.
| Field | What to write | What happens if you omit it |
|---|---|---|
| Product type | Stand, five-sided box, magnet-lid case, tray, holder, plinth | Quoted as the cheapest similar shape |
| Overall size and load | L × W × H, and what sits on or in it | Thickness guessed from a photo |
| Sheet | Cast or extruded, colorless/tint, virgin if required | Indoor extruded may be assumed |
| Thickness by member | Lid 5 mm, walls 4 mm — not “about 5 mm everywhere” | One gauge used for all faces |
| Finish | Sawn, flame polish, diamond polish, frost | Saw edge on a visible corner |
| Print / engraving | Method, color, location, artwork file type | Print omitted or treated as a later extra |
| Hardware | Magnets, hinges, locks, feet, lining | Lid quoted without magnets |
| Quantity and mix | Pieces per design, number of SKUs, repeat outlook | MOQ and unit price set on a single-run assumption |
| Destination and terms | Country, port or door, Incoterms, required documents | EXW price compared with a DDP competitor |
| Compliance | Food contact market, RoHS/REACH if the program needs them | Display-grade sheet used where a declaration is later required |
What files do acrylic manufacturers need?
- Enough to start: a dimensioned sketch, a retailer photo, or the product the fixture must hold.
- Better: 2D PDF with overall sizes and a simple 3D (STEP, or a well-exported STL for shape only).
- For print: vector logo (AI, EPS, or PDF outlines) plus Pantone or CMYK intent. A screenshot is not print-ready.
- For pockets: the live SKU or its envelope, including cable and tether if any.
CAD that was built as a marketing render often hides wall thickness and magnet pockets. Ask the factory to return a production drawing before you treat the file as frozen.
How to get an acrylic product quote
Send one RFQ package to every factory you compare. Price gaps usually come from different assumptions: extruded versus cast, flame versus diamond polish, EXW versus DDP, sample amortized or not.
A comparable quote line should state:
- unit price at named quantities (for example 100 / 300 / 500);
- sample cost and whether it credits against bulk;
- tooling or fixture charges, if any;
- lead time for sample and for bulk;
- Incoterms and what is inside the freight number;
- sheet route and finish assumed.
One factory’s intake path — what to email, and in what order — is on Sanait’s custom acrylic FAQ. Treat those steps as that plant’s process, not as an industry statute.
Custom acrylic manufacturing cost factors
| Factor | Why it matters |
|---|---|
| Sheet route and grade | Cast and virgin optical sheet cost more than generic extruded. Recycled mix is cheaper and less predictable. |
| Thickness and nest | Thicker plate costs more per part and can worsen yield on a standard sheet size. |
| Process steps | Each of laser, CNC pocket, heat bend, solvent joint, diamond polish, print, and hardware is a station. Count stations, not adjectives. |
| Yield and risk | Tight optical faces and brittle corners raise scrap. Scrap is priced in, whether it is visible on the quote or not. |
| Decoration and hardware | UV print, multi-color screen, magnets, and lined inserts often exceed the sheet cost on small parts. |
| Quantity | Setup is paid once per design. Very small runs carry that setup on few pieces. |
| Pack and freight | Corner guards, individual polybags, and air freight can dwarf a thin brochure holder. |
There is no honest public “price per kilogram of display acrylic.” Two 200 mm cubes with different lid construction are different products.
Acrylic MOQ guide
What MOQ is. Minimum order quantity is the smallest run a factory will schedule for a given design, set by setup time, sheet yield, and packing labor. It is not a property of PMMA and it is not uniform across plants.
Patterns buyers actually meet:
- Many custom display, box, and tray shops plan a first production lot in a three-digit quantity per design.
- Sanait’s published planning number for most displays, boxes, trays, and stands is 100 pieces per design, with mixed constructions sometimes landing higher. That is a commercial term on their FAQ, not a market law.
- A paid prototype is usually one or a few pieces and sits outside the production MOQ.
- Repeat orders of an unchanged drawing can sometimes go below the first-run floor. Ask; do not assume.
If a quoted MOQ is far below peers, check whether the plant is selling stock leftovers, skipping a sample, or using a different sheet route than you specified.
Acrylic sample guide
Ask what the sample is for. Those purposes are not the same object.
- Fit sample: confirms pocket and overall size against the live SKU.
- Finish sample: confirms edge polish, joint clarity, and tint.
- Print sample: confirms artwork size and color method.
- Golden sample: the signed piece bulk will be inspected against.
Simple cut-and-join parts often leave a sample bench in a few working days; assembled or printed pieces take longer. Sanait’s FAQ describes most simple samples in about 2–5 working days and more complex ones up to about a week. Other plants will differ. Pay for the sample if the construction is new. A “free sample” of a stock tray does not validate your magnet-lid box.
Acrylic production lead time
Write three dates on the purchase order, not one.
- Sample clock — starts when the drawing is agreed and, if required, the sample fee is received.
- Bulk clock — starts when the sample is signed and the deposit clears. Typical custom display bulk runs are measured in weeks, not days. Sanait publishes a common bulk window of about 15–25 business days, varying with quantity and finish.
- Freight clock — air may be days; sea is weeks plus customs. DDP quotes should say whose calendar includes clearance.
Prototype vs mass production
| Prototype / first article | Mass production | |
|---|---|---|
| Purpose | Fit, look, joint method | Repeatability at quantity |
| Process | May use more hand work or a different nest | Should match the signed process sheet |
| Color and sheet batch | One sheet off the rack | May be a later mill batch — ask if tint must match |
| Pack | Often unpacked or dummy packed | Needs the agreed carton, film, and corner method |
| Inspection | 100% conversation | AQL or a written full-check list |
If the prototype was flame-polished by hand and bulk will be laser-left-as-cut, write that down before you sign. Process drift between sample and bulk is a purchasing error, not a surprise property of acrylic.
How to choose and evaluate an acrylic manufacturer
Choose on evidence, not on adjectives
- Can they name cast versus extruded on the quote?
- Do they return a production drawing, or only a lifestyle photo?
- Is the sample made on the process that will run bulk?
- Can they show how corners are packed?
- Do they state Incoterms and documents without being asked twice?
Factory evaluation checklist
- Process list: laser, CNC, bending, solvent/UV join, diamond polish, print — which are in-house.
- Sheet control: mill name or grade, virgin versus mixed, film-on storage.
- First-article discipline: who signs the golden sample.
- Inspection: written checklist versus “we look at them.”
- Export: carton marks, humidity, and who handles claims on cracked corners.
- Capacity: what happens to your 15–25 day window when their larger customer pulls the laser line.
Sanait’s plant description and capabilities are on the about page. Use it as one data point. Use the list above on every supplier, including this one.
Acrylic quality inspection checklist
Inspect against the signed sample and the frozen drawing. Light a clear part from the side; haze and joint blush hide under frontal showroom light.
- Overall size versus drawing (and versus the live SKU in any pocket).
- Sheet identity if specified: cast versus extruded, tint, obvious inclusions.
- Faces: scratches through film, pits, adhesive residue, warp on a flat table.
- Edges: agreed finish, chips, burn from laser, stress whitening.
- Joints: alignment, blush, starved glue, squeeze-out on the camera face.
- Holes and hardware: magnet position and close force, screw clearance, liner adhesion.
- Print/engraving: position, spelling, rub test if the part will be wiped.
- Function: lid rack, tray flex with a stand-in load, stand tip-over with the SKU.
- Pack: film still on optical faces, corners blocked, carton mark correct.
ISO 7823 is a sheet standard. It does not pass or fail a brochure holder. Do not ask a lab to “ISO-certify” a display unless you mean the incoming sheet.
Acrylic packaging and shipping guide
- Leave protective film on until the fixture is installed, unless print or glue requires a local peel.
- Separate polished faces. Sheet-on-sheet without film is how transit haze appears.
- Protect corners. Most “cracked in shipping” claims start at an unprotected cube corner.
- Do not over-tighten straps on a hollow plinth. Compression marks look like warp.
- Name the Incoterm. EXW, FOB, CIF, and DDP allocate different damage windows.
- Air versus sea is a calendar and humidity choice. Sea needs pack that survives weeks, not a courier afternoon.
If duties and prepaid freight matter to the comparison, say so on the RFQ. Sanait’s FAQ describes air, sea, or rail options when those are quoted; other exporters will package the same modes differently.
FAQ
Can I order custom acrylic from a photo only?
You can start that way. You should not freeze production that way. A photo lacks wall thickness, magnet size, and edge finish. Expect a production drawing before the sample.
Why do two quotes differ by so much?
Usually because the factories assumed different sheet, polish, hardware, or Incoterms. Align those four fields and request the quote again before you decide on “price.”
Is a 3D printed model an acrylic prototype?
No. It can check volume. It does not check PMMA joint chemistry, edge polish, or scratch behavior.
Do I need a new sample on a repeat order?
Not if size, sheet, finish, print, hardware, and carton are unchanged and the factory still holds the signed drawing. Any of those changing usually means a new sample.
What payment split is typical?
Custom export work commonly uses a deposit to start bulk and a balance against shipping documents. The split is commercial. Put it on the PO with the lead-time clocks.
Who owns the drawing after I pay for a sample?
Say so in the PO. Paying for a sample does not automatically transfer CAD copyright or stop the factory from showing a similar construction. If exclusivity matters, write it.
Sources
- ISO 7823-1:2003, Plastics — Poly(methyl methacrylate) sheets — Part 1: Cast sheets. iso.org
- ISO 7823-2:2003, Plastics — Poly(methyl methacrylate) sheets — Part 2: Extruded sheets. iso.org
- International Chamber of Commerce, Incoterms® rules (official overview). iccwbo.org
- ISO 2859-1, Sampling procedures for inspection by attributes (when a program uses AQL). iso.org
- 21 CFR 177.1010, when the RFQ includes US food contact. ecfr.gov
- “Poly(methyl methacrylate).” Wikipedia. en.wikipedia.org
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