Aortha A25 foam sheets provide optimal comfort and support for orthotic applications. With all Aortha materials, we ensure that each sheet meets the highest standards in terms of quality and performance.
 
With various thickness options available, these EVA foam sheets cater to different orthotic needs while maintaining their superior softness. Additionally, the range of colours offered by Aortha allows for customization and creative design possibilities in orthotic fabrication.
 
Features:

• Low Density, Extremely Versatile: This high-quality EVA (Ethylene Vinyl Acetate) foam sheeting is used extensively in the O&P (Orthotics and Prosthetics), footcare, and footwear industries.
• Material for Outsoles and Midsoles: EVA sheeting serves as a standalone material or can be combined with other materials to create outsoles and midsoles in shoe manufacturing.
• Customizable: Can be heat-moulded to fit individual foot contours.
• Proven Quality: Used for orthotic linings, insole covers, and prosthetic covers.

 
Benefits:

• Comfort and Support: Provides cushioning and support due to its softness.
• Easy to Work With: Lightweight and easy to fabricate.
• Washable: Closed-cell structure allows for easy cleaning.
• Ideal for Diabetic and Rheumatoid Shoes: Suitable for linings in specialized footwear.

 
Common Uses:

• Orthotic Linings: Used as a lining material for custom orthotics.
• Insole Covers: Enhances comfort and cushioning in insoles.
• Prosthetic Covers: Provides a soft and comfortable surface for prosthetic devices.

 
Aortha Low Density EVA:
Low Density, extremely versatile high-quality EVA [Ethylene Vinyl Acetate] foam sheeting is used throughout the Footcare, theatrical, marine and footwear trades for a variety of uses.
 
Aortha EVA sheets offer differing mixtures, hardness, designs, finishes, thickness, dimensions, and colours.
 
Proven quality, used for orthotic linings, insole covers and prosthetic covers.
 
Standard sheet size: 100 x 100cm. Sheet size may vary.
 
Shore: A25. (Lime Green & Neon Pink are Shore A30)
 
EVA Heating Guide:
Mouldable at between 120°C and 140°C depending on the sheet density, with an oven time of 2 minutes per mm. The ideal temperature for thermo-moulding Aortha EVA depends on the material thickness and hardness.
 
The standard principles would be:
1. Shore A25-A35 and 15mm EVA material: 100-130°C temperature during 30 to 90 seconds exposure.
2. Shore A50 and 15mm EVA material: 110-140°C temperature during 30 to 120 seconds exposure.
3. Shore A65 and 15mm EVA material: 120-150°C temperature during 30 to 140 seconds exposure.
 
It is important to indicate these conditions should be adjusted according to the following patterns:

• The thinner the material the lower the temperature or the exposure timing. The only effective way to determine heating times based on variable thickness and sheet size, is to test in stages based on the above guidelines.
• The heat source is also important; a direct infrared radiation will be much more aggressive than heating a piece with a circulating air system, meaning the temperature should be adjusted accordingly. Again, test in stages as per above.
• In general, EVA copolymers should not be extruded hotter than 200°C since degradation may occur.
• Degradation products include the elimination of acetic acid, which can account for a 'vinegar' odour and corrosion of some materials.