Acrylic Quality Control · ISO 9001 Certified · Since 2018
Every Piece Inspected. Every Order.
Not spot checks. Not random sampling. Every single product is compared against your approved sample before it ships.
Wetop Acrylic runs a 4-stage quality control process across all custom acrylic (PMMA) products — also known as plexiglass or Perspex — from incoming material inspection through pre-shipment verification. In 18+ years and 2,000+ projects, our defect rate has stayed below 0.5%. When you receive your order, it matches what you approved.
4-Stage Acrylic Quality Control Process
Quality control for custom acrylic products follows four inspection stages: incoming material, in-process, final product, and pre-shipment. Each stage has defined checkpoints, measurable standards, and a clear reject-and-redo protocol.
Incoming Material Inspection
Before production startsWhat we check
- Sheet clarity — no inclusions, bubbles, or haze
- Thickness verified with digital calipers (tolerance ±0.1mm)
- Surface checked for scratches, scuffs, or protective film defects
- Color consistency across sheets (batch matching for colored acrylic)
If it fails
Sheets that fail are returned to the supplier. We don't cut material that doesn't meet spec — reworking a scratched panel wastes time and never matches a clean one.
In-Process Inspection
During cutting, forming, and finishingWhat we check
- Cut dimensions verified against production drawing (±0.1mm tolerance)
- Edge quality after polishing — checking for chips, unevenness, or haze
- Bend angles measured with precision gauges
- Print alignment checked against positioning guide before full run
If it fails
Problems caught here get fixed immediately — before the piece moves to the next station. A miscut panel is recut, not forced through assembly.
Final Product Inspection
After assembly, before packingWhat we check
- Side-by-side comparison with approved sample — every piece, not spot checks
- Surface inspection under direct light for scratches, fingerprints, or bonding residue
- Assembly integrity — joints tested for bond strength, hardware checked for fit
- Print and engraving verified for alignment, color accuracy, and adhesion
If it fails
Any piece that doesn't match the approved sample is rejected. No exceptions, no "close enough." Rejected pieces are remade from scratch.
This is the same inspection standard applied to every product we ship — from display stands to trading card cases to custom boxes.
Pre-Shipment Inspection
Packed order, before leaving the factoryWhat we check
- Random pull from packed cartons — verify product quality survived packing
- Packaging integrity — protective film, foam inserts, corner protectors in place
- Quantity count confirmed against purchase order
- Shipping labels, documentation, and customs paperwork verified
If it fails
If a random pull reveals any issue, the entire batch is unpacked and re-inspected. The shipment doesn't leave until every carton passes.
Certifications & What They Mean
Certifications only matter if you know what they actually cover. Here's what each one means for your order.
Certified since 2018
ISO 9001 is an international standard for quality management systems. It means our factory follows documented procedures for every step — from incoming material inspection to final shipping. An external auditor verifies compliance annually. It's not a self-declared badge; it's third-party validated.
What it covers
Production workflow documentation, inspection procedures, defect tracking, corrective action processes, supplier evaluation, and continuous improvement protocols.
Material testing certified
SGS is the world's largest inspection and testing company. Our SGS certification confirms that the acrylic materials we use have been independently tested for safety, composition, and physical properties. You're not taking our word for material quality — a global lab verified it.
What it covers
Raw material composition, physical property verification (impact resistance, optical clarity, UV stability), and safety compliance.
Material compliance certified
ROHS (Restriction of Hazardous Substances) certification means our materials contain no lead, mercury, cadmium, or other restricted substances. If you're selling into the EU or working with retailers who require ROHS compliance, our materials already meet the standard.
What it covers
Absence of lead, mercury, cadmium, hexavalent chromium, PBBs, and PBDEs in all acrylic materials used in production.
Six years in, no rejected shipments from our end. Dimensions and finish match the approved sample every time. That's why we stopped dual-sourcing.
What Happens If Something Goes Wrong
A 0.5% defect rate means that in a 1,000-piece order, roughly 5 pieces might have an issue. We catch most of these during our inspection process. But if a defective product reaches you, here's exactly what happens — no vague promises, just the process.
You report the issue
Send us photos of the defective pieces within 7 days of receiving the shipment. Email them to inquiry@wetopacrylic.com with your order number. No forms, no ticket systems — just email the photos.
We assess within 48 hours
Our QC team reviews the photos, compares against the approved sample and inspection records, and determines whether the issue is a manufacturing defect. We don't argue about definitions — if the product doesn't match what you approved, it's on us.
We remake and reship
Confirmed defective pieces are remade from scratch using the original approved sample as the standard. Replacement pieces ship at our cost — no charge for manufacturing, no charge for shipping. Typical turnaround: 10–15 days from confirmation to your door.
We fix the root cause
Every defect report triggers an internal investigation. We trace the issue to the specific production stage, update our inspection checklist, and adjust the process. The same problem doesn't happen twice on the same product. Learn more about our production workflow on the Manufacturing Process page.
Frequently Asked Questions
How do you maintain quality on large orders?
The same process applies whether it's 50 pieces or 50,000. Every piece is inspected against the approved sample — dimensions, surface finish, print alignment, and assembly integrity. We don't switch to spot checks at scale. Larger orders run in controlled batches with inspection checkpoints between each batch, so any drift is caught early. Our ISO 9001 system tracks every batch with records that tie back to the original approved sample.
What does 100% inspection actually mean?
It means every single finished product is physically checked before packing — not 10%, not random pulls, every one. Our QC team compares each piece side-by-side against the approved sample, checking dimensions with calipers, inspecting surfaces under light for scratches or haze, verifying print alignment, and testing assembly fit. A piece that doesn't match the sample gets rejected and remade. This is why our defect rate stays below 0.5%.
What is your defect rate?
Below 0.5% — measured across all shipments since our ISO 9001 certification in 2018. That includes every product category: display cases, stands, boxes, frames, trays, awards, and specialty items. When defects do occur, they're typically minor cosmetic issues (light scratches, slight print offset) caught during our final inspection. If a defective piece reaches you, we remake and reship at no charge.
Have more questions? See our full FAQ.
Have Quality Standards? Send Them Over.
Tell us your specs, tolerances, and testing requirements. We'll confirm exactly how we meet them — or tell you honestly if we can't. No commitment required.