What is the difference between EVA Foam Cold & Hot Pressing?
Views: 76 Author: Site Editor Publish Time: 2025-02-16 Origin: Site
EVA (Ethylene-Vinyl Acetate) foam is a popular material known for its flexibility, light - weight, and excellent shock - absorbing properties. The cold and hot pressing processes of EVA foam further enhance its characteristics, making it suitable for a wide range of applications. By below comparison, you can better understand the difference and make better choice.
EVA foam cold pressing package
EVA foam hot pressing guitar box
Comparison Items
Cold Pressing Process
Hot Pressing Process
Process
At room temperature, cut EVA foam sheets into the desired size and place them in the mold. Then apply pressure to shape the foam.
First, heat the EVA foam to a specific temperature to soften it. Then place it in the mold and apply pressure to form it. After cooling, it takes on a fixed shape.
Precision Performance
It enables high - precision molding and can create accurate shapes and fine details, suitable for products with high dimensional accuracy requirements.
Due to the certain fluidity of the foam at high temperatures, precision control is relatively more difficult. However, it can still meet the needs of most conventional products.
Structural Stability
The internal structure of the foam is not affected by high temperatures, resulting in stable product density and quality.
The heating process may cause certain changes in the internal structure of the foam. Nevertheless, stability can be ensured by controlling temperature and pressure.
Enrgy Consumption
Low energy consumption, environmentally friendly and with low production costs.
Heating equipment is required, resulting in relatively higher energy consumption.
Material Bonding
It is usually difficult to achieve strong bonding with other materials.
The softened EVA foam after heating can better bond with other materials, facilitating the manufacture of composite materials.
Density Adjustability
The density adjustment range is relatively narrow.
The density of the foam can be changed within a wide range by adjusting temperature and pressure.
Production Efficiency
The production speed is relatively slow, suitable for small - batch and customized production.
Suitable for large - scale production, capable of producing a large number of products in a short time.
Applicable Product Types
Suitable for manufacturing products that require extremely high precision, complex shapes and do not need to be combined with other materials in large quantities, such as precision instrument packaging liners and sports protective gear with complex shapes.
Suitable for products that need to be compounded with other materials, have diverse density requirements and are for large - scale production, such as sports shoe midsoles and electronic product packaging.
The cold and hot pressing processes of EVA foam offer unique benefits and make this material a top choice for various industries. Whether you are looking for precision, bonding ability, or shock absorption, EVA foam has got you covered.
Shunho EVA solutions has been working on this industry with over 10 years’experience. Contact us by sales@shunhogroup.com.hk to get more idea on your projects.
(+86)-0769-88050188 sales@shunhogroup.com.hk Business center: Room 806, Block A, worldecono mic and trade center No. 11 Dong guan Avenue, Dongcheng District , Dongguan, China
