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FAQ — Hollow Plastic Board Factory China

Frequently Asked Questions

Everything you need to know about our hollow plastic boards, PP corrugated sheets wholesale, reusable concrete formwork, and custom manufacturing from our China factory.

About Hollow Plastic Board

General questions about PP corrugated sheet properties and characteristics.

What is the difference between PP corrugated sheet and regular plastic board?

PP corrugated sheet features a hollow flute structure sandwiched between two flat outer layers. This I-beam-like core design delivers an exceptional stiffness-to-weight ratio, making the sheet lightweight yet strong. In contrast, a solid plastic board is heavier, uses more raw material, and costs more per square meter.

  • Weight: PP corrugated is 30–50% lighter than solid plastic board of the same thickness.
  • Cost: Corrugated structure uses less material = lower unit cost.
  • Impact resistance: The fluted core absorbs shock better than a solid sheet.
  • Applications: Concrete formwork, protective packaging, signage, agricultural boards.

For most construction and industrial uses, PP corrugated sheet offers the best balance of strength, weight, and cost.

Are PP corrugated sheets and hollow plastic boards eco-friendly and recyclable?

Yes, 100% recyclable. Polypropylene (PP) is a thermoplastic, which means scrap material and end-of-life panels can be reground, melted, and reprocessed into new products without quality degradation.

  • Our factory operates a closed-loop scrap recovery system — edge trimmings and off-cuts are immediately recycled back into production.
  • All products comply with RoHS and REACH environmental standards.
  • Unlike plywood, plastic formwork does not require chemical treatment, and at end of life it can be fully recycled rather than sent to landfill.

Using our recyclable plastic formwork can contribute toward LEED and BREEAM green building certification points.

What are the standard sizes available for hollow plastic boards?

Parameter Round-Hollow Board Square-Hollow Board
Thickness 2 – 12 mm 10 – 18 mm
Standard Sizes 1200×2400, 1220×2440 mm 915×1830, 1220×2440 mm
Common Colors Black, white, blue, grey, green (custom Pantone available)
Custom Options Any size, thickness, color, or printing upon request

About Wholesale & Ordering

Pricing, MOQ, lead time, shipping and sample policies for bulk buyers.

What is the MOQ for wholesale PP corrugated plastic sheets?

For standard-size PP corrugated sheets, the minimum order quantity is 500 pieces per specification. For custom size orders, the MOQ is also 500 pieces per spec, though this can be negotiated for larger dimensions or trial orders.

We welcome mixed containers combining multiple sizes, colors, and product types to help buyers optimize shipping costs. Contact our sales team to discuss your specific requirements and we will tailor a solution.

Do you keep standard-size PP corrugated sheets in stock? What is the lead time?

Yes, we maintain a 3,000-square-meter indoor warehouse with constant stock of our most popular sizes: 1200×2400 mm, 1220×2440 mm, and 915×1830 mm in common thicknesses and colors.

✅ For in-stock standard sheets:

Lead time: 7 to 14 days from order confirmation to container loading. We can typically arrange shipment within 10 working days for most standard orders.

For custom sizes, lead time is 10 to 18 working days depending on quantity and whether new tooling is required.

Our large warehouse capacity means we can buffer seasonal demand spikes and maintain consistent supply even during Chinese holiday periods.

How long does shipping take from your China factory to the USA or Europe?

Sea freight from our factory in Zhejiang, China (adjacent to Ningbo & Shanghai ports):

  • US West Coast (Los Angeles, Long Beach): 18 – 25 days
  • US East Coast (New York, Savannah): 25 – 30 days
  • Europe (Hamburg, Rotterdam): 30 – 35 days
  • Australia / NZ: 15 – 22 days
  • Middle East (UAE, Saudi Arabia): 18 – 25 days

For urgent or sample orders, air freight or express courier (DHL, FedEx, UPS) is available — typically 5–7 working days door-to-door.

Do you provide free samples of hollow plastic boards? How do I order samples?

Yes, we offer free samples for qualified buyers and serious inquiries. Simply contact our sales team with your desired thickness, size, color, and application details and we will prepare the appropriate samples.

  • Sample cost: Free of charge
  • Shipping: You cover the courier cost (DHL / FedEx / UPS)
  • Dispatch time: Samples ready within 3 – 5 working days
  • Delivery: 5 – 7 working days to most destinations worldwide

Sample orders are strongly recommended to verify material quality, surface finish, dimensional accuracy, and suitability for your specific application before placing a bulk order.

About Concrete Formwork

Technical specifications and comparison between plastic formwork and traditional plywood.

How many times can your hollow plastic concrete formwork panels be reused?

30 – 50+ cycles under normal construction conditions.

Our reusable concrete formwork plastic panels are engineered to maintain structural integrity through 30 to 50 or more pour-and-strip cycles. Each panel retains its flatness, strength, and surface quality throughout its lifespan.

Compare this to traditional plywood formwork, which typically lasts only 3 to 5 uses before warping, delaminating, or absorbing moisture.

Cost impact: At 50 uses vs. 5 uses for plywood, the per-cycle cost of plastic formwork is typically 60–70% lower than plywood over the full lifecycle.

What are the advantages of plastic formwork compared to traditional plywood formwork?

Feature Plastic Formwork Plywood Formwork
Reusability 30 – 50+ times 3 – 5 times
Water Resistance 100% waterproof, no swelling Absorbs moisture, swells & delaminates
UV Resistance UV-stabilized, no degradation Not UV resistant, surface cracks
Weight (15mm panel) ~12 kg / m² ~17 kg / m²
Concrete Surface Finish Smooth, requires minimal plastering Rough, often requires extensive patching
Recyclability 100% recyclable Landfill or incineration
Long-term Cost 60–70% lower per cycle Higher per-cycle cost due to frequent replacement

In summary, plastic concrete formwork is the clear winner for projects that demand consistent quality, lower labor cost, and sustainable construction practices.

Can plastic concrete formwork be used in cold or freezing temperatures?

Yes. Hollow plastic formwork panels have an operating temperature range of −20 °C to +80 °C. Unlike plywood, plastic does not absorb moisture and therefore will not freeze, crack, or delaminate in sub-zero conditions.

However, we recommend handling panels with care below −10 °C as the material becomes slightly less flexible. For winter construction projects in cold climates, plastic formwork is actually more reliable than plywood.

About Custom Manufacturing

Custom size, OEM/ODM, tooling and qualification process.

What is the MOQ for custom size hollow plastic boards? What is the lead time?

The MOQ for custom size hollow plastic boards is 500 pieces per specification. Lead time is 10 to 18 working days depending on complexity and whether new tooling is required.

  • Existing mold matches your size: 10 – 12 working days
  • New extrusion die required: 14 – 18 working days (die fabrication takes 7 – 10 days)
  • Sample pre-production: 7 working days for approval before mass production

Can I get a sample to confirm quality before placing a bulk order?

Absolutely. We strongly recommend sample approval before mass production. For standard products, we can send free samples from our existing stock. For custom sizes, we can produce pre-production samples for your approval.

The sample process typically takes 7 working days for custom items. Once the sample is approved and the purchase order is placed, production begins within 2 working days.

Do you support OEM and custom printing on PP sheets?

Yes, we provide full OEM and ODM services including:

  • Custom sizes, thicknesses, and flute shapes
  • Custom colors (Pantone-matched)
  • Mono-color and multi-color silk-screen printing with your logo or branding
  • Custom packaging with your branding
  • Private label options

Our in-house mold workshop can produce new extrusion dies within 7 to 10 days for unique profiles and custom flute designs.

Still Have Questions?

Our sales engineers are ready to help with technical specifications, pricing, and customized solutions for your project.

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