For buyers comparing packaging across several chilled-food lines, the same material, closure, and handling checks also apply to disposable sushi trays used by supermarkets, restaurants, and takeaway counters.
Introduction
The WL-P81 is a large white 8×8-inch PP clamshell container for takeaway meals and prepared food.
It has a square, single-compartment base, an attached hinged lid, and a closed size of 200×200×75 mm.
The format suits restaurants, delis, caterers, meal-prep businesses, and foodservice distributors that need room for sandwiches, salads, rice dishes, chicken, and other full portions.
ManLuen lists the WL-P81 as a microwaveable PP model. Buyers should still follow the instructions supplied for the exact container, food, heating time, and microwave conditions. A PP resin code by itself does not make every container suitable for every heating application.
This article explains the WL-P81 specifications, suitable uses, sample tests, compliance documents, and wholesale information. Buyers comparing other formats can also review ManLuen’s clamshell containers and food storage containers.
WL-P81 Product Specifications
| Specification | WL-P81 |
| Product type | Hinged clamshell takeaway container |
| Material | PP |
| Color | White |
| Shape | Square |
| Compartments | 1 |
| Closed size | 200×200×75 mm |
| Nominal capacity listed in the original specification | 1050 ml |
| Packing quantity | 150 pieces per carton |
| Carton size | 430×285×430 mm |
| Carton volume | 0.056 cbm |
Confirm the latest specification when requesting a quotation, especially if capacity, color, material formulation, packing quantity, or customization affects the order. The current WL-P81 product page provides the model’s live dimensions and carton information.
Why the 8×8 Square Format Is Useful
Room for Full Meal Portions
The 200×200 mm footprint gives restaurants space for sandwiches, burgers, salads, rice dishes, chicken, pasta, and mixed prepared meals. The 75 mm height also provides clearance for thicker portions. The single compartment works best when ingredients can share one cavity without losing quality.
Simple Stacking and Storage
A square footprint can use shelf and carton space more efficiently than some round formats. The benefit depends on the actual stacking features and how the filled containers perform. Buyers should stack loaded samples in the same arrangement used in the kitchen, delivery bag, and transport carton.
Attached Lid
The hinge keeps the lid and base together. Staff can fill and close the package without managing a separate lid. This can simplify counter service and reduce mismatched components. The closure still needs testing because a snap-fit clamshell is not automatically leakproof or tamper-evident.
Polypropylene is widely used for prepared-food packaging because it can provide useful flexibility, impact resistance, and heat performance. The WL-P81 product listing identifies PP as its material and describes the model as microwaveable.
Microwave use must follow the instructions for the finished container. Heating performance depends on the resin grade, additives, wall thickness, hinge, closure, food composition, fill level, time, power, and whether the lid is vented. Do not rely on a generic “PP” mark as the only evidence.
Before approving the WL-P81 for a menu item, fill a sample with the actual food and follow the supplier’s reheating instructions. Check for softening, distortion, lid opening, hot spots, staining, odor, and handling safety. Repeat the test with oily, sugary, or dense foods if those products are part of the menu.
The FDA’s food-contact framework distinguishes between room-temperature storage, refrigeration, reheating, hot filling, and cooking. This is why the intended condition of use matters. For a broader material comparison, see ManLuen’s food packaging materials guide and the article on PP clamshell containers.
What “Mineral Clamshell” Should Mean in a Purchase Specification
The original WL-P81 article describes a PP formulation that includes mineral filler.
Mineral-filled polypropylene can use substances such as calcium carbonate or talc, but the composition and performance vary by formulation. Buyers should not treat “mineral clamshell” as a standardized material grade.
Ask the supplier to state:
- The base polymer and mineral type
- The filler percentage or agreed formulation range
- The finished unit weight and tolerances
- The intended temperature and food-contact conditions
- Relevant migration or compliance documents
- Whether the formulation changes the product’s recycling guidance
Mineral filler may affect stiffness, weight, impact behavior, forming, and resin use. It does not automatically prove a lower carbon footprint or better recyclability. Environmental claims need data that applies to the finished product and its actual supply chain.
Suitable Commercial Uses
Restaurants and Takeaway Counters
The WL-P81 can hold burgers, sandwiches, rice meals, pasta, salads, chicken, and other prepared foods. Its single cavity works well for items that do not require separation. Sauces and liquid-heavy meals should undergo closure and transport testing before launch.
Catering
The square format can simplify stacking for catering portions. Caterers should test how filled containers behave in insulated boxes and vehicles. Check whether pressure from the upper layers affects the lid, hinge, or food beneath.
Meal Prep and Grab-and-Go
The wide base offers room for complete meals and labels. For chilled retail, test condensation, label adhesion, closure, and presentation after the full holding period. For meal kits, confirm whether raw and ready-to-eat ingredients need separate packaging to avoid cross-contact.
Deli and Foodservice Distribution
Distributors can add the WL-P81 to a range that includes smaller square clamshells, divided meal containers, and round deli tubs. Buyers needing smaller portions can compare the WL-P61 square clamshell. For soups, sauces, and round deli applications, the C-16 16 oz deli container and C-8 8 oz deli container provide different formats.
How to Test the WL-P81 Before a Bulk Order
- Measure the sample. Confirm the closed size, usable internal space, rim, hinge, and unit weight against the approved specification.
- Fill it with real food. Test the actual portion instead of using an empty container or water alone.
- Check the closure. Close every corner and inspect for gaps, food on the rim, and lids that spring open.
- Run a transport test. Tilt, stack, and carry the filled container over the expected delivery route.
- Test reheating correctly. Use the supplier’s instructions for time, power, food, and lid position. Stop if the container distorts or becomes unsafe to handle.
- Check chilled storage. Inspect rigidity, odor, staining, condensation, and label adhesion after the normal holding time.
- Keep an approved sample. Sign and date the reference sample or retain measurements and photographs with the purchase specification.
Food-Contact Compliance Documents
“FDA approved” is not a complete description of U.S. food packaging compliance. The FDA regulates food-contact substances according to their authorization and intended use. Buyers should request the regulatory basis and supporting documents for the exact PP formulation used in the WL-P81.
For the European Union, Regulation (EU) No 10/2011 sets requirements for plastic materials intended to contact food. The European Commission explains that migration testing must use standardized time and temperature conditions representative of the intended application. It also requires a Declaration of Compliance supported by appropriate documentation.
Request:
- A current WL-P81 specification with material, color, dimensions, unit weight, and intended use
- The U.S. regulatory basis or EU Declaration of Compliance relevant to the supplied formulation
- Migration or laboratory reports that identify the tested product or material and test conditions
- Product-specific microwave instructions and supporting test information
- Batch traceability and quality-control records
- Evidence for BPA-free, recycled-content, recyclable, or environmental claims when used
Match the factory, company name, formulation, color, and product details across the quotation and reports. A general certificate for another PP container may not cover the WL-P81. ManLuen’s certification page provides company-level information, while buyers should request the current documents for their exact order. The guide to which agency regulates food packaging explains the U.S. process.
Recycling and Environmental Claims
PP is technically recyclable, but actual recovery depends on local collection, sorting, market demand, color, mineral loading, labels, and food residue. Do not tell customers that the WL-P81 is accepted in most curbside programs without checking the destination market.
A mineral-filled formulation may reduce the amount of PP resin per unit, but that alone does not prove lower lifecycle emissions. A credible comparison needs product weight, formulation, energy, transport, performance, and end-of-life data. The safest purchasing approach is to request measurable information rather than accept a general “eco-friendly” label.
Food protection also matters. A lighter package is not an improvement if it opens, breaks, or causes more food waste. Test the complete pack against the food and distribution system.
Wholesale Ordering Information
ManLuen lists the standard white WL-P81 at 150 pieces per carton. The carton measures 430×285×430 mm with a stated volume of 0.056 cbm. Buyers should confirm these figures in the quotation because customization or packing changes can affect the carton plan.
A complete request for quotation should include:
- Required quantity and delivery schedule
- White or another requested color
- Food type, filling temperature, storage, and reheating conditions
- Destination country and required compliance documents
- Label, printing, embossing, sleeve, or carton requirements
- Sample and pre-production approval requirements
- Inspection method and acceptable defect definitions
- Delivery location and preferred Incoterm
MOQ, unit price, lead time, and customization cost change with quantity, color, formulation, packing, and factory schedule. Request current written terms rather than relying on fixed figures in a general article. To obtain samples and a product-specific quotation, use ManLuen’s request form.
Frequently Asked Questions
What are the WL-P81 dimensions?
The closed container measures 200×200×75 mm. It is a square, single-compartment 8×8-inch clamshell.
What material is the WL-P81 made from?
ManLuen lists the WL-P81 as a white PP container. If the order uses a mineral-filled PP formulation, request the precise formulation range and supporting documents in the purchase specification.
Is the WL-P81 microwave-safe?
ManLuen markets the model as microwaveable. Use it only under the time, power, food, and lid conditions provided for the exact SKU. Do not assume that every PP container can tolerate every microwave application.
Is the WL-P81 leakproof?
Do not assume a standard clamshell is leakproof. Test the closure with the actual food, especially sauces, gravies, soups, or oily dishes. Select a sealed or purpose-designed liquid container when leakage control is critical.
How many WL-P81 containers are packed in a carton?
The current product page lists 150 pieces per carton. Confirm the final packing quantity, carton dimensions, and weight in the quotation.
Can the WL-P81 be customized?
ManLuen offers bulk and custom packaging options. Confirm which colors, labels, printing, embossing, or carton arrangements are available for this model, together with the MOQ, cost, and lead time.
Conclusion
The WL-P81 is a large white PP clamshell designed for full takeaway portions. Its 200×200×75 mm square format and attached lid make it useful for restaurants, catering, delis, and prepared-food service.
Approve the product through real-food tests rather than material claims alone. Check closure, stacking, delivery, chilled storage, and reheating. Before ordering, match the exact formulation and intended use to the food-contact documents and written commercial specification.
References
ManLuen Pack. WL-P81 Disposable Hinged White 8×8 Clamshell To Go Container. Used for the live product dimensions, material, color, structure, packing quantity, and carton information.
ManLuen Pack
U.S. Food and Drug Administration. Food Packaging & Other Substances that Come in Contact with Food. Used for the U.S. food-contact substance and intended-use framework.
U.S. Food and Drug Administration
U.S. Food and Drug Administration. Food Types & Conditions of Use for Food Contact Substances. Used to distinguish storage, reheating, hot filling, and cooking conditions.
U.S. Food and Drug Administration
Electronic Code of Federal Regulations. 21 CFR Part 177—Indirect Food Additives: Polymers. Used as the U.S. regulatory reference for food-contact polymers.
Electronic Code of Federal Regulations
European Commission. Food Contact Materials Legislation. Used for migration testing and Declaration of Compliance requirements for plastic food-contact materials.
European Commission
European Union. Commission Regulation (EU) No 10/2011 on plastic materials and articles intended to come into contact with food.
EUR-Lex
ManLuen Plastic Packaging Company, which is specialized in the production of Plastic Food Packaging for more than 20 years. Our products are made from 100% virgin and BPA-Free PP, PS, and OPS comply with FDA and European Standards.
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