At Sanait Co. Ltd, quality is built into every stage of our acrylic manufacturing process. We inspect materials, production, finished products, and packaging to help ensure that each order matches the approved specifications and is ready for reliable delivery.
Our Quality Performance
✅ < 0.4% Defect Rate
✅ 100% Products Inspected
✅ 4 Inspection Stages
✅ Quality Control Since 2012
Our 4-Stage Quality Control Process
We inspect products throughout the manufacturing process—not only at the end. From incoming acrylic sheets to final shipment, our QC process checks materials, dimensions, appearance, finishing, assembly, packaging, and order quantities against the applicable specifications.
Stage 1: Incoming Material Inspection
Before Production Begins
Quality starts with the material. Incoming acrylic sheets are checked before they are released for production.

What We Check:
- Optical Clarity — Visual inspection for bubbles, inclusions, haze, and other visible defects
- Thickness Accuracy — Thickness verified with digital measuring tools against the applicable specification
- Surface Integrity — Inspection for scratches, scuffs, contamination, and protective-film defects
- Color Consistency — Batch matching for colored acrylic sheets where applicable
- Material Documentation — Relevant material and test documentation reviewed when required for the project
If It Fails:
Material that does not meet the applicable specification is rejected or held for review before production. We do not release unapproved material for manufacturing.
Stage 2: In-Process Inspection
During Cutting, Forming & Finishing
In-process checks help identify dimensional, finishing, printing, forming, and assembly issues before they move to the next production stage.
What We Check:
- Cut Dimensions — Checked against production drawings and approved specifications
- Edge Quality — Inspection of polished edges for chips, unevenness, scratches, or haze
- Bend Angles — Formed parts checked against the required shape and dimensions
- Print Alignment — Positioning and appearance checked before and during production
- Assembly Fit — Hardware, bonding, and component fit checked where applicable
If It Fails:
Issues are addressed at the production stage where they are found. Parts that do not meet the applicable specification are corrected, reworked, or remade before proceeding.
Stage 3: Final Product Inspection
After Assembly, Before Packing
Finished products are checked against the approved sample, drawings, specifications, or other agreed reference materials before packing.
What We Check:
- Approved Sample Comparison — Appearance and construction checked against the approved reference
- Surface Inspection — Inspection for scratches, fingerprints, bonding residue, and visible finishing defects
- Assembly Integrity — Component fit, bonding, hardware installation, and overall construction checked where applicable
- Print & Engraving — Alignment, appearance, and adhesion checked where applicable
- Final Dimensions — Key dimensions re-measured against the approved specifications
If It Fails:
Products that do not meet the approved requirements are rejected for correction or remanufacturing before shipment.
Stage 4: Pre-Shipment Inspection
Packed Order, Before Leaving the Factory
Before an order leaves the factory, we verify product quantity, packaging condition, labeling, and applicable shipping documentation.
What We Check:
- Packaging Condition — Protective film, foam, corner protection, and other agreed packaging materials checked
- Quantity Confirmation — Order quantity cross-checked against the purchase order
- Carton Condition — Packaging inspected for visible damage or issues before dispatch
- Shipping Documentation — Applicable labels, invoices, packing lists, and customs documents verified
- Shipment Readiness — Products and packaging checked for dispatch according to the agreed shipping method
If It Fails:
If an inspection identifies an issue, the affected products or packaging are corrected before shipment. Orders are not released until the applicable requirements have been checked.
Material Testing & Compliance
Sanait distinguishes between manufacturing quality control and material compliance documentation. Compliance is evaluated based on the specific material, test method, product, and intended application.
ISO 9001 Quality Management
Our quality management practices are structured around documented production and inspection procedures. Current certification documentation can be provided where applicable.
RoHS & REACH
Relevant acrylic materials and components can be supported with applicable RoHS and REACH documentation when required by the project. Compliance should be verified against the specific material and supporting documentation.
EU POPs
Applicable material documentation can be provided for projects requiring confirmation against relevant EU Persistent Organic Pollutants (POPs) requirements.
FDA 21 CFR 177.1010 Tested Acrylic Material
Selected acrylic sheet materials have been tested by SGS against requirements referenced in FDA 21 CFR 177.1010. The reported SGS test results for the submitted acrylic sheet sample recorded PASS results for the listed test items.
This documentation applies to the submitted material sample and the specific tests reported by SGS. It should not be interpreted as FDA approval of Sanait, FDA approval of all Sanait products, or automatic compliance for every food-contact application. Material and application-specific documentation should be reviewed for projects with food-contact requirements.
Supporting test reports and material compliance documents are available upon request for applicable projects.
Product-Specific Quality Standards
Acrylic Display Stands
- Structural stability and overall construction checks
- Joint bonding and component fit verification where applicable
- Base leveling, balance, and visual appearance checks
Acrylic Blocks
- Optical clarity inspection from multiple viewing angles
- Dimension control against approved specifications
- Edge polishing inspection for chips, cloudiness, or visible finishing defects
Acrylic Boxes
- Lid fit and hinge functionality where applicable
- Magnetic closure verification where applicable
- Interior and exterior surface inspection
Acrylic Trays
- Edge smoothness and finishing inspection
- Uniformity of dimensions and thickness against specifications
- Material documentation reviewed when a specific food-contact application requires it
Quality Documentation for B2B Projects
For projects that require formal quality or compliance documentation, Sanait can review the applicable requirements during the quotation and pre-production stages.
- Material test reports, where applicable
- RoHS, REACH, POPs, or other relevant compliance documentation
- Approved samples and production specifications
- Inspection records and product quality checks, where applicable
- Packaging and shipment documentation
Documentation requirements should be confirmed before production so the correct material, specifications, testing, and paperwork can be prepared for the project.
Our Quality Guarantee
After-Sales Quality Remediation
If a confirmed quality issue is found after delivery, we provide a structured review and remediation process:
- Submit Claim Within 7 Days
Send clear photos of the outer cartons, inner packaging, defective products, and your order information. - Technical Assessment Within 48 Hours
Our QC team reviews the reported issue against the approved sample, specifications, and production records. - Remanufacture & Reshipping
For confirmed manufacturing defects, we work with the customer on an appropriate corrective solution, including remanufacture and reshipping where applicable. - Root Cause Review
Quality complaints are reviewed internally to identify corrective actions and reduce the risk of recurrence.
Why Choose Sanait for Acrylic Manufacturing?
- 100% Product Inspection — Every finished piece is checked according to the applicable QC requirements.
- Approved Sample Matching — Production can be controlled against approved samples, drawings, and specifications.
- Material Documentation — Relevant test and compliance documents can be reviewed for applicable projects.
- Precision Measurement — Digital measuring tools are used for dimensional inspection where required.
- Transparent QC Process — Quality checks cover incoming materials, production, finished products, and shipment preparation.
- Corrective Action — Nonconforming products are corrected, reworked, or remade before release where required.
Ready to Discuss Your Custom Acrylic Project?
Contact Sanait to request a custom acrylic product quotation. Share your drawings, photos, sketches, dimensions, quantity, materials, finishing requirements, and any quality or compliance requirements you need for the project.
Typical production lead time is 15–25 business days, depending on product type, order quantity, customization, materials, and finishing requirements.
📧 Email: sales@sanait.com
Every Piece Inspected. Every Order. Every Time.
