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When customers request a customized Coroplast sheet, PP hollow sheet, or corrugated plastic board sample, one of the most common questions we receive is:
“Why is the sample price much higher than the mass production price?”
Many customers think producing one sample should be cheaper because the quantity is small. However, for plastic sheet manufacturing, the opposite is often true.
The reason is related to the complete production process, raw material consumption, machine setup, and color customization.
In this article, we will explain why custom Coroplast sheet samples are expensive and how we help customers reduce unnecessary prototype costs.
1. The Production Process Makes Small Quantity Samples Expensive
Unlike simple products that can be produced individually, PP corrugated sheets are manufactured through an extrusion production line.
The basic process includes:
- PP raw material preparation
- Material heating and melting
- Extrusion through the die head
- Sheet forming and calibration
- Cooling and shaping
- Cutting and inspection
The entire production line requires a large amount of material before stable production can begin.
For example, our extrusion machine needs several hundred kilograms of PP raw material to start production.
Whether producing one sample or thousands of sheets, the machine still needs to consume materials during startup and adjustment.
This is one of the biggest reasons why customized samples have higher costs.
2. Machine Adjustment Creates Material Waste During Sampling
When a new PP sheet sample starts production, the first sheets coming out of the machine are usually not perfect.
At the beginning stage:
- The thickness may not be stable
- The surface may not be smooth enough
- The flatness needs adjustment
- The color may need calibration
Our production team needs to continuously adjust the extrusion parameters until the sheet reaches the required quality.
During this process, some initial sheets cannot be used as finished products.
These materials are called machine startup waste or head waste.
Although these materials can sometimes be recycled, they still represent additional production costs.
Therefore, a small sample order requires almost the same setup process as a large production order.
3. Custom Colors Increase Sample Development Costs
Color customization is another important factor affecting sample prices.
Many customers require specific colors based on:
- Pantone color numbers
- Brand identity requirements
- Product appearance standards
For regular production colors, we usually keep existing color samples available, allowing customers to choose directly.
This helps avoid unnecessary color development costs.
However, for special colors, we need to:
- Receive customer’s Pantone color requirement
- Contact professional color masterbatch suppliers
- Create color samples
- Confirm the final color
- Adjust the production formula
By preparing color samples in advance, we help customers confirm colors faster and reduce repeated testing costs.
4. Special Functions Require Additional Testing
Some customers need more than standard PP sheets.
For example:
- UV-resistant PP sheets
- Anti-static PP sheets
- Weather-resistant sheets
- Special performance materials
These customized materials require different formulations and testing.
A factory needs to prepare different material combinations and keep previous successful formulas to reduce future development costs.
This is why an experienced manufacturer with more production experience can provide better sample support.
How We Help Customers Reduce Custom Sample Costs
Although the production process cannot completely eliminate sampling costs, we have developed several methods to help customers save money.
1. Provide Existing Samples for Customer Confirmation
We maintain a large collection of PP sheet samples, including:
- Different thicknesses
- Different colors
- Different material formulas
- Different surface treatments
Customers can first check existing samples before starting a completely new production trial.
This avoids unnecessary machine setup costs.
2. Recommend Suitable Materials Based on Application
Many customers are unsure which PP sheet specification they need.
For example:
- Packaging applications may require different thicknesses
- Automotive parts packaging requires higher strength
- Outdoor applications require UV resistance
Our team helps customers select the right:
- Thickness
- Material grade
- Structure
- Color
- Surface treatment
A correct recommendation can reduce repeated sampling.
3. Combine Sample Production With Future Orders
For customers planning regular purchases, we usually recommend combining sample development with future production planning.
Once the material formula and production parameters are confirmed, future orders can avoid repeated setup costs.
This helps reduce the overall development cost.
Why Choosing an Experienced Coroplast Sheet Manufacturer Matters
A professional manufacturer does more than produce sheets.
A reliable supplier should provide:
✅ Material recommendations
✅ Color matching support
✅ Prototype assistance
✅ Custom cutting solutions
✅ Production experience
✅ Quality control
With years of experience and accumulated sample data, manufacturers can help customers avoid unnecessary trial costs.
Need Custom Coroplast Sheets? We Can Help
Every industry has different requirements for PP corrugated sheets.
Whether you need:
- Custom Coroplast boards
- PP packaging sheets
- Automotive parts protection sheets
- Plastic partition sheets
- Printed PP boards
- Special functional PP materials
we can provide customized solutions according to your product requirements.
Contact us with your application details, size requirements, thickness, and quantity. Our team will help you choose the most suitable PP sheet solution and reduce unnecessary sampling costs.
