Faq
Titanium & 3D-Printed Multi-Sig Backup Cards – Shamir SSS + Blind Printing
The most secure and versatile physical backup solution for Bitcoin, Ethereum, and high-value digital assets.
MaxiToon.ai Backup Multi-Sig Cards combine military-grade durability with mathematically proven Shamir’s Secret Sharing (SSS) and our proprietary Blind Printing technology. Your seed phrase or private keys are split into encrypted shares and permanently printed onto your chosen material — we never see your plaintext data at any point.
Material Comparison Table
| Material | Type | Melting Point | Fire Resistance | Water Resistance | Corrosion Resistance | Impact Resistance | Weight per Card | Thickness | Production Time | Best For | Price Level |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aerospace Titanium | CNC + Laser Engraving | 1,668°C | 1,300°C+ (30+ min) | Excellent | Excellent | Very High | 18–22 g | 1.2 mm | 5–7 days | Long-term HODLers, family offices, institutions | Premium |
| Stainless Steel | CNC + Laser Engraving | 1,400–1,530°C | 1,000°C+ | Very Good | Very Good | High | 25–30 g | 1.0 mm | 4–6 days | Serious individual users | High |
| Carbon Fiber | 3D Printed (reinforced composite) | 800–1,000°C | 800°C+ | Excellent | Excellent | Very High | 8–12 g | 1.8–2.2 mm | 2–4 days | Modern look + lightweight strength | Medium-High |
| Advanced Polymer (PETG/ASA) | 3D Printed | 280–320°C | 280–320°C | Very Good | Very Good | High | 10–14 g | 1.8 mm | 1–3 days | Everyday use, excellent balance | Medium |
| PLA | 3D Printed (Bioplastic) | 150–160°C | 60–80°C | Good (indoor) | Moderate | Medium | 9–12 g | 1.8–2.0 mm | 1–2 days | Budget, testing, gifts, short-term | Affordable |
In-Depth Material Guide
Aerospace Titanium
The ultimate premium material. Highest melting point, superior corrosion resistance and unmatched longevity. Ideal for users who want “set-and-forget” protection for decades.
Stainless Steel
Proven, robust all-rounder with excellent heat and impact resistance at a more accessible price.
Carbon Fiber (3D-Printed)
High-performance composite with exceptional strength-to-weight ratio. Modern matte finish, very light yet extremely strong.
Advanced Polymer (PETG/ASA)
Engineering-grade 3D printing material that offers great heat, UV and water resistance at a good price point.
PLA (Polylactic Acid)
Affordable, eco-friendly bioplastic. Lightweight and fast to produce. Best for indoor, climate-controlled storage, testing or budget setups.
How It Works – 5 Minutes to Permanent Security
- Use the free MaxiToon SSS Tool (air-gapped recommended) to split your seed phrase.
- Encrypt shares locally on your device.
- Upload only the encrypted data — we Blind Print onto your chosen material.
- Receive your cards + immediately test reconstruction.
- Distribute shares in different secure locations.
Technical Specifications
- Compatibility: All BIP39 wallets (Ledger, Trezor, Coldcard, MetaMask, Electrum, etc.)
- Share Formats: QR codes, hex, binary dots, human-readable text
- Card Size: Standard credit card (85.6 × 53.98 mm)
- Thickness: Titanium 1.2 mm | Carbon Fiber / PLA ~1.8–2.2 mm
- 3D-Printing Technology: High-precision FDM with carbon-fiber reinforced filaments
- Security Features: Tamper-evident holographic seals, unique serial numbers
Frequently Asked Questions
What is Blind Printing?
You encrypt locally with the free SSS Tool. We only print encrypted shares. We never see your actual seed phrase.
Can I mix materials in one set?
Yes , many customers order 3× Titanium + 4× Carbon Fiber or mix PLA for testing.
Is PLA durable enough for long-term storage?
Yes for indoor, dry, climate-controlled environments. For extreme conditions we recommend Carbon Fiber or Titanium.
How often should I test reconstruction?
Once per year or after any major move. The free tool makes it quick and safe.
Do you offer bulk / corporate / white-label orders?
Yes, volume pricing, custom engraving, and branding available. Contact sales@maxitoon.ai.
What is your return / warranty policy?
30-day money-back guarantee + 2-year manufacturing warranty.
Ready to upgrade from paper to permanent multi-material security?
Choose Your Material & Add to Cart
Made in Belgium • Agoria Member • Microsoft AI Cloud Partner • Zero-Knowledge by Design