Child Resistant Cannabis Mylar Bags: B2B Sourcing Guide 2025
Published June 2025 · 8 min read · By BestPackFactory
For cannabis dispensaries, licensed producers, and white-label cannabis brands, child resistant (CR) mylar bags are not optional — they are a legal requirement in virtually every regulated cannabis market. This guide covers compliance requirements, material specifications, custom printing options, and how to source CR mylar bags at MOQ 500 PCS.
1. Regulatory Compliance: What CR Packaging Means
Child resistant packaging for cannabis must meet ASTM D3475 (US) or equivalent standards in Canada (CCPSA), EU, and Australia. The standard requires that:
- Less than 20% of children aged 42–51 months can open the package within 5 minutes
- At least 90% of adults can open the package in under 5 minutes
- The CR feature must remain functional after multiple open/close cycles
BestPackFactory's CR mylar bags use a press-and-slide zipper mechanism that meets ASTM D3475 requirements. We provide test reports from third-party certified labs upon request.
2. Material: What Makes a Mylar Bag
"Mylar" is a colloquial term for PET (polyethylene terephthalate) film — a high-barrier packaging material with excellent oxygen and moisture resistance. A typical cannabis mylar bag uses a multi-layer laminate:
| Layer | Material | Function |
|---|---|---|
| Outer | Biaxially Oriented PET (BOPET) / OPP | Print surface, puncture resistance |
| Middle | Aluminum Foil (7–9 micron) | Oxygen barrier, light blocking, smell-proof |
| Inner | PE (Polyethylene) | Heat sealability, food contact safety |
3. CR Zipper Mechanism Options
BestPackFactory offers three child resistant zipper mechanisms:
- Press-and-slide (pinch) zipper: Most popular. Requires simultaneous pressing both sides while pulling.
- Double-zipper: Two separate zippers for double barrier protection.
- Exit zipper (slider CR): Push-button slider with child resistant feature for premium brands.
4. Custom Printing for Cannabis Brands
Cannabis regulations in most markets require specific label elements printed on or affixed to packaging:
- THC/CBD content and potency warning
- State cannabis program logo or symbol
- "Keep out of reach of children" warning
- Batch/lot number, expiry date, producer license number
- Universal symbol for cannabis product
BestPackFactory prints all regulatory information directly onto the mylar bag surface using rotogravure printing (10+ million unit runs) or digital printing (MOQ 500 PCS). We can accommodate state-specific compliance requirements for California, Colorado, Michigan, Canada, and other regulated markets.
5. Size Options and Common SKUs
| Size | Common Use | Capacity |
|---|---|---|
| 3.5" x 5" | 1g / 3.5g flower (eighth) | 3–7g |
| 4" x 6" | 7g / 14g flower (quarter / half oz) | 7–14g |
| 5" x 8" | 28g flower (1 oz) | 28–50g |
| 6" x 9" | Multi-pack, edibles, accessories | 50–100g |
| Custom | Any size available | Per request |
6. MOQ 500 PCS: Ordering Process
- Submit your artwork file or request our free dieline
- Confirm size, material, CR mechanism, and quantity
- Approve digital proof (24–48 hours)
- Approve physical sample including CR mechanism test (7–10 days)
- Bulk production: 20–30 days
7. Key Questions to Ask Your Supplier
- Do you provide ASTM D3475 test reports for your CR zippers?
- What is the material specification (micron by layer)?
- Can you accommodate state-specific compliance requirements?
- What is your defect rate and QC process?
- Do you offer opaque/light-blocking variants?