Understanding EVA Foam Density & Hardness: Shore A/C Guide
In high-performance manufacturing, choosing the right material is more than just a preference—it’s a technical requirement. Whether you are producing footwear midsoles, marine decking, or intricate cosplay armor, the performance of your product depends on two critical factors: Density En Shore Hardness.
Key Takeaway for Buyers
At Damao, we provide a full spectrum of EVA foam sheets and rolls with densities ranging from 33 kg/m³ to 280 kg/m³ and hardness ratings from 15 to 80 Shore C (or 10 to 90 Shore A). Understanding how these two metrics interact is essential to optimizing both product performance and cost-efficiency.
1. EVA Foam Density: The Foundation of Support
Density refers to the mass of the foam per unit volume. In our production facility, we categorize EVA into three primary tiers to suit different structural needs:
Low-Density (33–80 kg/m³)
Ultra-lightweight and highly compressible. Best for maximum comfort in applications like helmet padding, yoga mats, and premium packaging inserts.
Medium-Density (80–150 kg/m³)
The versatile industry standard. Offers a perfect balance of flexibility and durability for shoe insoles, sports equipment, and heat-moldable props.
High-Density (150–280 kg/m³)
Rigid and heavy-duty. Ideal for structural components, orthotic supports, marine decking, and professional-grade cosplay armor that requires fine detailing.
2. Shore Hardness: Shore A vs. Shore C
Hardness measures the resistance to indentation. While often related to density, hardness can be adjusted through chemical additives in the EVA blend.
Shore C-schaal
Used for softer, more compressible foams. This is the standard for the footwear and comfort industry.
- 15-35 Shore C: Therapeutic insoles
- 40-60 Shore C: Athletic midsoles
Shore A-schaal
Used for harder rubbers and semi-rigid plastics. Best for industrial and high-impact scenarios.
- 10-40 Shore A: Soft rubber feel
- 60-90 Shore A: Rigid industrial flooring
3. Performance Matrix by Application
Onze custom-finished EVA products are engineered to meet the specific demands of various industries:
| Toepassing | Typical Density | Typical Hardness | Why it matters? |
|---|---|---|---|
| Footwear (Insoles) | Low to Medium | 20–35 Shore C | Reduces foot fatigue & high comfort |
| Cosplay Armor | Medium to High | 40–70 Shore C | Heat-moldable & holds sharp edges |
| Marine Decking | Hoog | 60–65 Shore C | UV resistance & structural integrity |
| Industrial Gaskets | Hoog | 50–80 Shore A | Compression resistance & durability |
4. Why Choose Damao Tech?
Choosing a supplier is about more than just numbers on a spec sheet. At Damao, we leverage advanced manufacturing to ensure:
- Precise Customization: We don’t just sell “standard” foam. We customize density and hardness to your exact prototype requirements.
- Duurzaamheid: Our partners are GRS (Global Recycled Standard) certified, providing eco-friendly options with 20% recycled content.
- Consistente Kwaliteit: Strikt Shore durometer testen zorgt voor consistentie van het eerste meter van een rol tot het laatste.
Gereed om uw productprestaties te optimaliseren?
Geen genoegen nemen met “goed voldoende” materialen. Laat ons engineeringteam u helpen de exacte dichtheid en hardheidsprofiel te vinden voor uw volgende project.
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