Custom PET Square Foam Pump Bottle 250–450ml
Boyu Packaging’s BY-FB250 is a clear PET foam pump bottle developed for hand wash, foaming facial cleanser, bath products and daily personal-care packaging. The square body provides a clean, space-efficient shelf profile, while the foaming pump mixes a compatible liquid formula with air to dispense soft foam without an aerosol propellant. Capacities from 250ml to 450ml support both retail and family-size product lines.
Explore our foam pump bottle range, plastic cosmetic bottles and skincare packaging solutions, or contact Boyu Packaging for samples and a project quotation.
Core Product Specifications
| Product | Custom PET square foam pump bottle |
|---|---|
| Brand | Boyu Packaging |
| Model | BY-FB250 |
| Capacity | 250ml–450ml; exact available sizes to be confirmed |
| Bottle material | PET |
| Pump material | Normally PP with internal foaming components; confirm final assembly |
| Shape | Square body |
| Standard appearance | Transparent / high-clarity finish |
| Decoration | Silk-screen printing and heat-transfer printing |
| Applications | Foaming hand wash, facial cleanser, bath gel and compatible personal-care liquids |
| MOQ | 10,000 pieces per design or configuration |
| Origin | Zhejiang, China |
| OEM / ODM | Custom color, logo, decoration, pump and packaging options |
Data note: The listed 67 × 52 × 52cm and 0.350kg are marketplace single-package data and should not be used as the bottle dimensions or export-carton specification. Bottle height, width, neck size, wall thickness and unit weight must be confirmed against the selected capacity, pump and technical drawing.

Key Features and Buyer Benefits
- Clear PET presentation: provides glass-like visibility at a lower transport weight.
- Square profile: creates a modern shelf appearance and can improve carton and display-space utilization.
- Foam-on-demand dispensing: a compatible liquid is converted into foam at the pump, helping provide controlled application and a pleasant consumer experience.
- Custom brand presentation: bottle color, pump color, logo and printed artwork can be coordinated for one product family.
- B2B production support: sampling, artwork review, mass production, inspection and export packing can be managed through one project.
PET Material: Advantages and Limitations
PET is commonly selected for transparent personal-care bottles because it combines clarity, impact resistance and relatively low weight. It is suitable for many water-based cleansing products, but packaging compatibility should always be tested with the buyer’s finished formula.
| Material | Main advantages | Points to consider |
|---|---|---|
| PET | High clarity, lightweight, good shelf appearance | Formula, heat and stress-cracking compatibility require testing |
| HDPE | Strong chemical resistance and durable handling | Usually opaque or translucent rather than crystal clear |
| PP | Good fatigue and chemical resistance; widely used for pumps | Different appearance and stiffness from PET |
| Glass | Premium weight and strong barrier properties | Heavier, breakable and more expensive to ship |
Capacity and Suitable Products
The 250ml format is suitable for standard retail facial cleanser, foaming hand sanitizer and hand wash. Larger 300–450ml formats work well for bath, household wash and family-use personal-care products. The bottle is intended for low-viscosity, foam-compatible formulas rather than conventional thick lotion or gel.
Important: A foam pump does not reliably dispense every formula. Surfactant level, viscosity, particle content and liquid-to-air ratio affect foam density and pump recovery. Buyers should provide filled product samples for compatibility and output testing before mass production.
Foam Pump, Sealing and Convenience
The pump assembly draws the liquid formula through an internal pathway and mixes it with air through a mesh system. A suitable pump should produce consistent foam, return smoothly after pressing and remain secure during normal transport. Output per stroke, neck finish, dip-tube length and optional overcap must be matched to the final bottle.
Leak resistance depends on the complete system—not the bottle alone. Boyu Packaging checks bottle-neck dimensions, pump-thread engagement, gasket fit, dip-tube length and assembly torque. Filled samples can then be tested upright, inverted and after repeated pressing. For e-commerce or long-distance export, inner bags, dividers or pump-locking protection may be added according to the shipping route.
Color and Logo Customization
The standard bottle is transparent. Custom transparent tints, solid colors and coordinated pump colors may be developed subject to order quantity and technical feasibility. A Pantone reference, physical color sample or approved master sample is recommended because screen settings cannot serve as the final color standard.
- Silk-screen printing: suitable for clean logos and limited spot colors.
- Heat-transfer printing: suitable for larger or more detailed multicolor graphics.
- Labeling: may be considered when artwork, order structure or regulatory text requires flexibility.
Artwork should be supplied in an editable vector format. The printable area, color count, registration tolerance and adhesion standard are confirmed before sampling.

Manufacturing and Quality Control
PET preforms are heated and blow-molded in the selected bottle mold. Bottles are cooled, visually inspected and matched with the foam pump. Decoration is applied after the bottle surface is checked and cleaned. Finished components are assembled or packed separately according to the customer’s filling-line requirements.
Typical inspection points include:
- Bottle clarity, contamination, deformation, scratches and molding defects
- Capacity, unit weight and critical neck dimensions
- Pump fit, thread engagement, dip-tube length and dispensing recovery
- Foam consistency using an agreed test liquid or the buyer’s formula
- Leakage, cap security and transport-oriented packing checks
- Printing position, color, appearance and adhesion
OEM/ODM Process
- Requirement review: confirm capacity, formula type, order quantity, market, color and decoration.
- Component selection: match the bottle, foam pump, dip tube, closure protection and carton.
- Quotation and artwork: price is calculated after the final configuration and print files are reviewed.
- Sampling: stock samples can check structure; decorated or color samples confirm the commercial appearance.
- Approval and production: mass production begins after written sample and order confirmation.
- Inspection and shipment: products are inspected, packed and released under the agreed shipping terms.
Is a New Mold Required?
A new mold is normally unnecessary when an existing 250–450ml bottle and compatible pump meet the project requirements. A private bottle shape, special neck, embossed branding or structural change may require a new mold. In that case, Boyu Packaging reviews drawings, tooling cost, prototype plan, ownership terms and lead time before production.

MOQ, Price and Lead Time
The standard customized MOQ is 10,000 pieces per design or configuration. A final price cannot be based on capacity alone. It depends on bottle weight, pump structure, color, print method, print colors, assembly method, carton standard, quantity and Incoterm.
Stock component samples are usually faster than decorated samples. Typical customized mass production is approximately 30–45 days after artwork, sample and deposit confirmation, but the actual schedule depends on material availability, decoration complexity and order volume. Buyers with a fixed launch date should reserve time for formula testing, sample approval and shipping.
Packaging, Shipping and After-Sales
Bottles and pumps can be packed in export cartons with protective inner packaging. Accurate pieces per carton, carton dimensions, gross weight and total volume are confirmed after the final capacity and pump are selected. Samples are commonly shipped by DHL, FedEx, UPS or TNT; bulk orders may move by sea, rail, air or an appointed forwarder.
Customers should inspect delivered cartons and retain labels, photos and videos if damage or quality concerns are found. Boyu Packaging reviews the affected quantity, batch information and evidence, then provides a corrective solution according to the agreed order terms.
Safety and Sustainability
PET and PP are widely used in cosmetic and personal-care packaging. Material documentation and market-specific testing can be discussed according to the buyer’s destination and product category. Recyclability depends on local collection systems and the complete package design. Reuse may be possible after appropriate cleaning, but the brand should evaluate hygiene, pump durability and formula contamination risks before marketing the package as reusable. “Food grade,” “non-toxic,” recycled-content or regulatory claims should be supported by the applicable material and test documentation for the final order.
Frequently Asked Questions
What products can be filled in this foam bottle?
It is intended for foam-compatible hand wash, facial cleanser, bath wash and similar low-viscosity liquids. Final compatibility testing with the actual formula is required.
Can thick bath gel be used with the foam pump?
Not usually in its standard thick form. The formula must have suitable viscosity and surfactant characteristics. The buyer should test the filled product rather than relying only on an empty-bottle sample.
Can the bottle and pump be made in custom colors?
Yes. Custom colors are available subject to quantity, material and technical feasibility. Pantone references and approved physical samples are recommended.
How do you reduce leakage risk?
The bottle neck, pump thread, gasket, torque and dip tube are matched as one system. Filled compatibility, inverted storage and dispensing tests can be performed before mass production.
Can I receive a free sample?
Available stock samples may be provided free of charge, while courier costs are normally paid by the buyer or charged to the buyer’s courier account. Customized samples may involve decoration or setup costs.
What information is needed for an accurate quotation?
Please provide the required capacity, quantity, formula type, bottle and pump color, logo artwork, decoration method, destination country and preferred shipping term. A filled formula sample is recommended when foam performance is critical.
Request a Quote
Send your capacity, quantity, formula type and artwork to Boyu Packaging. Our team will confirm the suitable foam pump, available dimensions, customization options, sample plan and production quotation.


