INSULATED EPP BOX

 YUMAOTEK is one of the top suppliers providing epp
foam box in China. Together with our unique design
and production equipment, We could offer you high
standard and cost saving products. We could be your
reliable partner as you wish. Send us your inquiries!

Thermal Insulation
Outstanding insulation for cold or hot object
or products.

Lightweight
High foaming ratio of raw material, Reduce
the cost for transportation.

100% Recyclable
Materials could be recycled, reduce the
impact on the environment.

Impact Resistant
EPP foam act as a perfect roles in energy
absorption aspects.

EPP Foam Food Delivery Box Manufacturer

The EPP Foam Box is a modern, eco-friendly food delivery box made from high-quality EPP foam, known for its excellent insulation and durability. This unisex box is designed for versatile use and can be customized with your choice of logo and color. It holds CE and ISO9001 certifications,

Core Advantages of EPP Foam Boxes Compared to Traditional Insulated Boxes

  1. Superior Insulation + Dual Shockproof Protection: The closed-cell structure provides strong temperature retention, with a longer insulation duration than traditional EPS foam and plastic insulated boxes. It also offers excellent shock absorption and impact resistance to protect internal items (such as precision instruments and fresh produce) from damage, while traditional insulated boxes mostly focus on a single insulation function.
  2. Lightweight & Portable + Durable & Easy to Maintain: EPP material has a low density, weighing only 1/3 to 1/5 of traditional wooden/metal insulated boxes, making handling and transportation more labor-saving. It is not easily deformed or damaged with repeated use, and is waterproof and moisture-proof for simple cleaning. In contrast, traditional insulated boxes are prone to aging and difficult to repair once damaged.
  3. Eco-Friendly & Safe + High Compliance: Non-toxic, odorless, and recyclable, it meets international environmental standards and releases no harmful gases when burned. Traditional insulated boxes (such as EPS foam boxes) are hard to degrade, and some plastic boxes have odors, failing to meet environmental requirements for high-end scenarios.
  4. Higher Adaptability to Multiple Scenarios: Integrating insulation, protection, and storage functions, it is suitable for cold chain transportation, industrial storage, outdoor operations, and other scenarios. Traditional insulated boxes have a single function, mostly limited to short-distance insulation or fixed-scene use.
  5. Flexible Customization + Cost-Effective: Supports customized design of shape, internal partitioning, and pore density to fit different item sizes. It features low long-term use costs, while traditional insulated boxes are difficult to customize and offer low cost-effectiveness for repeated use.
 
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EPP Foam Food Delivery Box

Core features of EPP foam food delivery boxes: Lightweight, impact-resistant, and excellent thermal insulation for long-lasting food temperature retention. Non-toxic, odorless, food-contact safe, waterproof, oil-resistant, and easy to clean. Pressure/shock-proof, reusable without deformation, and good cushioning to protect meals. Eco-friendly, recyclable, low-density (reduces delivery costs) — an ideal choice for food delivery.

  • Inside Material:EPP
  • Best quality, Best price with short delivery time
  • Custom Size Accepted,large EPP FOAM box available
  • Our EPP Foam Boxes meet all kinds of testing requirements in Europe and America
  • Features: Eco-friendly, safe, pressure-resistant and impact-resistant
  • We boast strong production capacity.
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EPP foam storage box

EPP foam storage boxes stand out with core features: lightweight yet durable, offering excellent pressure and impact resistance to avoid deformation. They are non-toxic, odorless, and food-contact safe, with waterproof and oil-resistant properties for easy cleaning. Boasting good thermal insulation and cushioning, they protect stored items effectively. Eco-friendly and recyclable, they are reusable for long-term use, suitable for home, office, or travel storage. Compact in design, they save space when not in use, making them a practical and versatile storage solution

  • Lightweight: Reduces shipping costs and easy to handle.
  • Easy to Clean: Waterproof and oil-resistant, stains can be easily wiped off, with convenient maintenance
  • Strong Protection: Excellent cushioning and thermal insulation performance to effectively protect stored items
  • Versatile: Suitable for various storage scenarios such as home, office and travel, with high practicality
  • Moisture-proof: Closed-cell structure prevents moisture penetration
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EPP Foam Travel Case

The EPP (Expanded Polypropylene) foam packaging case is a lightweight, versatile solution widely used in industries like electronics, automotive, and food.The EPP foam travel case fits multiple travel scenarios: ideal for storing fragile items during business trips and leisure travels, with excellent shock absorption to prevent collisions; lightweight and suitable for storage during outdoor hiking and camping; also serves as a dedicated storage for sports equipment and medical supplies, being moisture-proof and dust-proof. For short trips, it can store toiletries and clothes, balancing practicality and protection

  • Lightweight：Reduce transportation costs, easy to travel with
  • Durable: Multi-scene, strong protection
  • Eco-friendly: Moisture/dust-proof, shock-resistant, reusable
  • Customizable: Various shapes & textures, multi-scene adaptable
  • Safe: Non-toxic, odorless, meets safety standards, hazard-free for all items
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EPP foam tool box

Expanded Polypropylene Foam Tool Box (EPP foam tool box) fits multiple scenarios. It can store tools for industrial maintenance and outdoor operations, being lightweight, shockproof and moisture-proof. It also serves as a dedicated storage box for instruments and accessories with shock absorption to prevent damage, and is suitable for safe storage in home DIY. Its closed-cell structure ensures moisture and dust resistance, meeting the demand for damage-free long-distance tool transportation.

  • Industrial Maintenance: Fits workshop tool storage, shockproof and moisture-proof to protect precision tools
  • Outdoor Operations: Lightweight and portable, suitable for mobile work like engineering and auto repair.
  • Equipment Matching: Dedicated packaging/storage for instruments and mechanical parts, shock-absorbing and damage-preventing
  • Home DIY: Non-toxic and safe, stores hand tools and repair gadgets, balancing protection and tidiness
  • Logistics & Transportation: Closed-cell structure resists moisture and dust, enabling damage-free long-distance tool transport
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EPP BOX TYPE

We have a range of regular Expanded Polypropylene Foam Box （EPP foam box） products. Details of specific models and parameters are shown in the table below. Leveraging the lightweight, shock-resistant, and eco-friendly properties of EPP material, these products are widely suitable for various scenarios such as storage, transportation, and protection. If you are interested in any of these products, please feel free to contact us, and we will provide you with more detailed product information and customized solutions

BOX TYPE (VOLUME) OUTER DIMENSIONS (mm) INNER DIMENSIONS (mm) WEIGHT (KG)
34 L 600×400×245 540×340×200 1.32
43 L 485×385×400 420×320×340 1.03
47 L 620×380×320 570×320×260 1.50
62 L 560×450×390 500×385×320 2.15
81 L 660×500×360 580×440×310 2.60
108 L 660×520×480 600×460×400 3.10
120 L 600×430×500 670×500×560 3.40
170 L 690×630×610 620×560×510 4.00
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YU MAO TEK is a professional enterprise specializing in the production of EPP products

We have accumulated rich experience in the customization of EPP foam boxes (Expanded Polypropylene foam boxes). We fully understand that many customers are not yet fully aware of their core performance. Next, I will conduct an in-depth analysis of the key performance advantages of this product to help you more accurately match your customization needs

EPP Foam Box - Foaming Ratio, Scenario & Performance Correspondence Table
Foaming Ratio Range Corresponding Density Core Performance Advantages Typical Application Scenarios Adapted Core Requirements
Low foaming ratio (5-15 times) 0.06-0.18g/cm³ High density, strong hardness, excellent compression resistance and impact resistance, outstanding load-bearing capacity, not easy to deform Industrial precision instrument packaging boxes, heavy equipment buffer boxes, auto parts transport boxes, long-term stacking turnover boxes Protect high-value/fragile/heavy items; require strong protection, stack resistance, and repeated turnover use
Medium foaming ratio (15-30 times) 0.03-0.06g/cm³ Balanced thermal insulation and buffering performance, combined with portability, high cost-effectiveness, and stable overall performance Cold chain fresh transport boxes, medical constant temperature boxes, food insulation boxes, electronic equipment buffer boxes, e-commerce logistics turnover boxes Medium and short-distance transportation, multi-frequency turnover; need to balance thermal insulation, protection, and handling convenience
High foaming ratio (30-45+ times) ≤0.03g/cm³ Extremely lightweight, excellent thermal insulation effect, strong elastic recovery, and soft buffer shock absorption High-end cold chain long-distance transport boxes, outdoor portable insulation boxes, buffer boxes for fragile items (such as glass/ceramics), temporary insulation storage boxes Long-distance temperature locking, reducing transportation costs; focusing on lightweight and long-term thermal insulation, no need for load-bearing/stacking

EPP foam (Expanded Polypropylene foam) is a high-performance foam material made by taking polypropylene (PP) as the base material, adding foaming agents and additives, undergoing pre-treatment of drying at 60℃ for 2-4 hours, and then conducting physical or chemical pre-foaming. The physical method uses a pre-foaming machine for pressure heating (120℃-160℃) and rapid pressure relief to make PP particles initially expand into particles with a density of 30-200 kg/m³. The chemical method involves mixing thermally decomposable foaming agents into PP during granulation; after being heated to 120℃-160℃, the foaming agents decompose and release harmless gases to promote particle expansion, and after cooling and setting, pre-foamed particles with consistent performance are formed

The foaming ratios of EPP can be divided into low foaming ratio (5-15 times), medium foaming ratio (15-30 times), and high foaming ratio (30-45+ times)

Foaming ratio: The higher the foaming ratio (the lower the density), the more air contained in the internal closed-cell structure. Since air has a low thermal conductivity, the thermal insulation performance is better; low-ratio products, due to their dense structure and low air content, have relatively weaker thermal insulation.

 
Closed-cell rate and bubble structure: The higher the closed-cell rate (with independent and non-connected bubbles), the more thoroughly air convection and heat conduction are blocked, resulting in better thermal insulation; if bubbles are broken or connected (low closed-cell rate), heat exchange will be accelerated, reducing thermal insulation performance.
 
Material thickness and volume: With the same foaming ratio, the greater the thickness and volume of EPP foam, the longer the heat transfer path, and the longer the thermal insulation duration (e.g., thick-walled insulation boxes retain temperature longer than thin-walled containers).
 
Environmental temperature difference and usage conditions: The greater the external temperature difference and the more drastic the environmental temperature fluctuations (such as exposure to high-temperature sunlight or low-temperature freezing), the more significant the test on EPP's thermal insulation performance; in addition, whether it is sealed (e.g., whether the box is covered and how tightly it is sealed) also affects the speed of heat exchange.
 
Additives and modification treatments: Some EPP products are added with additives such as infrared reflectors and flame retardants
Compared with traditional thermal insulation materials (such as EPS foam, polyurethane foam, polystyrene boards, or mineral wool), EPP foam offers several distinct advantages:
 
  1. Superior Thermal Insulation Performance: Its closed-cell structure with high air content (especially in high-foaming-ratio products) effectively blocks heat conduction and convection, maintaining stable temperature retention over longer periods—ideal for cold chain logistics and thermal insulation scenarios.
  2. Exceptional Durability & Impact Resistance: Unlike brittle EPS or easily crushed mineral wool, EPP foam boasts high elasticity and toughness. It can withstand repeated impacts, compressions, and vibrations without deformation or damage, making it suitable for long-term turnover and heavy-duty applications.
  3. Lightweight & High Strength-to-Weight Ratio: With low density (especially high-foaming-ratio EPP), it reduces overall weight of products (e.g., insulation boxes, packaging) while retaining sufficient structural strength, easing transportation and handling.
  4. Water Resistance & Moisture Resistance: The closed-cell structure prevents water absorption, avoiding performance degradation caused by moisture (a common issue with mineral wool or fibrous materials that tend to absorb water and lose insulation capacity).
  5. Eco-Friendliness & Recyclability: Made from polypropylene (PP), EPP is non-toxic, odorless, and fully recyclable. It can be reused or remolded after use, generating less environmental pollution compared to non-recyclable polyurethane or flame-retardant-treated polystyrene.
  6. Wide Temperature Adaptability: It maintains stable performance across a broad temperature range (-40℃ to 130℃), resisting thermal shrinkage or hardening in extreme cold or heat—outperforming materials like EPS, which become brittle at low temperatures.
  7. Moldability & Customization: EPP particles can be molded into complex shapes with high precision, adapting to diverse product designs (e.g., irregularly shaped insulation boxes or buffer components) without compromising insulation efficiency.
 
These advantages make EPP foam a preferred choice in fields such as cold chain logistics, packaging, construction, and automotive industries, where a balance of insulation, durability, and eco-friendliness is required
For an EPP foam box, you need to choose one based on the size of your product. A standard EPP foam box (approximately 60cm x 40cm x 30cm) weighs about 2 kilograms and can achieve a compressive strength of 150-300 kPa. This is because EPP foam forms a three-dimensional network structure through a special foaming process, allowing each cell to bear force evenly. For every 1cm increase in the thickness of the EPP foam box, the thermal insulation time can be extended by about 1 hour. It is important to choose a thickness suitable for your product. It is not the case that a larger box can hold more items. EPP foam boxes are classified as lightweight and bulky goods, resulting in higher transportation and logistics costs. Therefore, you should select the most suitable box for your product based on the product's external size and intended use.
 
 
 
 
  • EPP foam boxes adopt the steam molding process
  • Preheat the mold to 60-80℃
  • Use a vibration table to ensure uniform distribution of EPP beads
  • The hydraulic system applies a mold clamping pressure of 5-15 MPa.
  • Introduce high-temperature steam (120-140℃) at a pressure of 0.3-0.6 MPa, maintaining this condition for 20-60 seconds.
  • Use cooling water or air cooling for shaping (demolding) to lower the mold temperature to 70℃. For non-standard EPP foam boxes, we need to open a custom mold. This is very cost-effective for mass-produced products.
  • Trim excess flash or uneven edges of demolded boxes with cutting tools to meet dimensional accuracy.
  • Inspect quality (e.g., density, compressive strength, closed-cell rate) and reject defective products.
  • For specialized boxes (e.g., cold chain insulation boxes), add coatings or treatments to enhance performance.

Reach out to us, and we’ll resolve your doubts!

If you are interested in our products or this material, feel free to contact us at any time. We look forward to communicating and analyzing your needs with you, and providing targeted solutions to address your current challenges.

We are professionals in EPP foam, with extensive experience from numerous practical cases. When it comes to customized products, we boast rich expertise. We sincerely hope to have the opportunity to cooperate with you someday

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