THE TECH
The Architecture on how it’s built the ZONDRA™ ZERO Series-"Deep Thud" | Elongated 16mm
The ZONDRA™ ZERO is a high-performance paddle engineered for elite playability and radical noise suppression. By replacing resonant honeycomb cores with a monolithic, multi-material composite matrix, we have eliminated the high-frequency "pop" that defines the sport's noise crisis.
I. Core Architecture: High-Bead Fusion Composite
The heart of the ZONDRA™ ZERO is a proprietary EPP + EVA Composite Core
(Z-Matrix™ Composite), manufactured through a high-pressure thermoforming cycle at 120ºC – 125ºC.
- Closed-Cell EPP Matrix: Our high-bead fusion Expanded Polypropylene provides superior energy return without the acoustic amplification of hollow cells.
- Acoustic Absorption Strips: Integrated EVA strips are strategically placed to disrupt internal sound waves, delivering a medium-soft Shore feel.
- Heat-Activated Bonding: All components are fused using industrial-grade epoxy film, ensuring a unified structure that is 100% resistant to delamination.
II. Z-Dual™ Structural Perimeter Frame: Vibration Decoupling
Every ZONDRA™ ZERO features a reinforced perimeter designed for a total vibration isolation.
- 100% Foam-Filled Double-Tube Frame: The bladder-molded carbon frame is injected with High-Density EVA. Unlike standard paddles, this foam-filled "backbone" extends through the handle to the butt cap to block high-frequency vibration from reaching the player.
- Anti-Snap Throat Reinforcement: UD Carbon inserts are layered "under-the-hood" in a V-Shape geometry to ensure maximum torsional stiffness at the handle-face junction.
- Handle Isolation: A layer of specialized shock-absorbing EVA tape is applied beneath the high-tack grip to further decouple the hand from the strike.
III. Z-Tow™ Carbon Surface: 3K Spread Tow Carbon
The ZONDRA™ ZERO’s face is a 100% carbon system engineered for consistent response and long-lasting friction.
- 3K Spread Tow Carbon: The outer layer provides a high-strength, visual-matte finish with zero resin pooling.
- 45° UD Carbon Cross-Ply: An internal layer of Uni-Directional (UD) carbon is oriented to provide elite torsional stiffness.
- Structural Peel Ply Texture: We achieve the surface roughness through physical lamination—never topical grit—ensuring the spin remains permanent and compliant.
IV. Technical & Performance Metrics
The ZONDRA™ ZERO is benchmarked against the strictest QA protocols in the industry.
| Test Parameter | Specification / Target | Acceptance Criteria |
|---|---|---|
| Max Sound Pressure | < 70.0 dB (at 9.84 ft) | Reject if > 70.0 dB |
| Dominant Frequency | < 550 Hz (Deep Thud profile) | Reject if > 600 Hz |
| Harmonics | None detected | Reject if any peak > 1,000 Hz |
| Energy Reduction | Minimum 50% reduction | Compared to 85 dB industry benchmark |
| Twist Weight | > 6.6 kg·cm² | Minimum required |
| Surface Roughness | 40 Rt / 30 Rz average | Reject if Avg > 40/30 |
V. Legal Disclaimer & Regulatory Compliance
- Acoustic Integrity: The ZONDRA™ ZERO is engineered for sound mitigation as defined by our laboratory standard of < 70dB and < 550Hz. While our monolithic core and foam-filled frame are designed to produce a low-frequency "Deep Thud," environmental factors—including ball type, court surface, and atmospheric conditions—may affect perceived levels.
- Regulatory Standing: This paddle is designed to comply with USAPA "Quiet Category" requirements. Every unit undergoes a 100% batch certification process; any unit exhibiting high-pitched or metallic harmonics (> 1,000Hz) is classified as a "Critical Structural Defect" and rejected.
- Liability & Limitations: While ZONDRA™ technology provides industry-leading sound mitigation, "total silence" is a physical impossibility in high-velocity impact sports. Reported decibel and frequency data are recorded in controlled laboratory environments. ZONDRA™ does not guarantee immunity from local noise ordinances or HOA regulations, as our product is a professional tool for noise mitigation, not total elimination.