C304 Anti Mold Bag — How to Use for Footwear OEM
Bester C304 anti mold bag: same vapor-phase tech as A505, precision-dosed for compact shoe boxes. REACH-compliant option for leather footwear packaging vs green anti-mold stickers. Request samples.
- Quality – Grade 0 mold growth report No. 2025FM00761R01D (shared with A505)
- Eco-Friendly – REACH SVHC screened (SGS CANAF26001423003; 251 substances + 4 potential SVHCs
- all not detected)
- Service – Factory packing-line support
- SGS Certified Lab-verified footwear packaging materials
- REACH Compliant SVHC screening for EU brand audits
- DMF-Free Dimethyl fumarate not detected
- OEM Nominated Supply Factory-ready A505 / C304 for global brands
Grade 0 Mold Growth (Report No. 2025FM00761R01D)
Vapor-phase anti-mold chips suppress spore germination. According to test report No. 2025FM00761R01D from Guangdong Provincial Microbiological Analysis and Testing Center (method DA/T 26-2000, issued 2025-02-26) — Grade 0 over 28 days (8 mold species, paper/cloth/leather). Not a desiccant substitute.
Global Brand Compliance
DMF-free (SGS report No. CANAF26001423001, not detected < 0.1 mg/kg). REACH SVHC Compliance Test (SGS report No. CANAF26001423003) — 251 SVHC substances + 4 potential SVHCs, all not detected (≤ 0.1% w/w). CLP updates and brand audit packs available on request.
Asia-Wide Humidity Detection
Complimentary on-site warehouse humidity scanning and moisture risk auditing across footwear manufacturing hubs in Asia.
Free Warehouse Disinfection
Free professional warehouse mold eradication and fumigation services for nominated long-term corporate supply chains.
A505 and C304 share the same active ingredient formulation and are covered by the same mold growth test report (No. 2025FM00761R01D).
Specifications
Key technical parameters for factory QA and packing-line teams.
| Specification | Details |
|---|---|
| Product Name | Bester® C304 Anti-Mold Bag |
| Standard Size | 35mm × 45mm (3.5cm × 4.5cm) |
| Model Number | NXBST-C304 |
| Mechanism | Vapor-phase anti-mold (not silica gel) |
| Active Ingredient | 100% Eco-friendly Plant Essential Oils (Mustard/Garlic Extract) |
| Dosage / Usage | 1 bag per compact shoebox (adjustable based on box volume and ambient humidity) |
| Chemical Compliance | REACH compliant & DMF-free (SGS verified) |
| Sealed Shelf Life | 6 months (unopened, cool and dry) |
| After Opening | ≤1 month (reseal remaining stocks immediately) |
| Application Scope | Compact shoe boxes, Autumn/Winter leather & suede, high-volume packing lines |
Usage & Directions
Compliance & Safety
Frequently Asked Questions
Why choose an anti mold bag instead of an ordinary anti mold sticker?
Ordinary stickers mainly protect near the contact surface. C304 anti mold bag uses vapor-phase action so protection spreads through the sealed shoe box or pack—better suited to export humidity swings. Place one bag per box before sealing. For upgraded lines, use A505 anti mold chip; for full containers, add Bester container desiccant poles.
Anti mold chip vs anti mold bag — which do I need?
Both are vapor-phase Bester options and both are positioned as stronger for enclosed packing than ordinary stickers. Chip (A505) is the upgraded option; bag (C304) is the standard option with simple how-to-use training on the line.
Is Bester C304 a desiccant or silica gel alternative?
No. Bester C304 is a vapor-phase anti mold bag—not a desiccant or silica gel packet. It actively releases controlled anti-mold vapor to help create an inhospitable micro-environment for mold growth even in high humidity.
How do I use anti mold bags correctly?
See our step-by-step Anti Mold Bags Usage Guide for placement, dosage charts, and common mistakes. For form selection, read Chip vs Sticker vs Bag.
How to use an anti mould bag?
Place one C304 anti mould bag in each shoe box or packaging unit before sealing. The bag releases vapor that fills the enclosed pack — no wiping or direct coating of the shoe is required.
How long does the anti mould bag last?
C304 provides protection for up to 6 months in sealed packaging (unopened stock, cool and dry). For long storage or repeat ocean voyages, plan a 4–6 month replacement cycle.
What are anti mold packet uses?
Anti mold packets (C304-style bags) are used in shoe boxes, leather-goods packs, textile cartons, and other enclosed export packaging. Buyers also search anti mold package / anti-mold packet for the same vapor-phase bag.
Anti mould bag vs silica gel packets — which do I need?
They solve different problems. Silica gel packets absorb moisture; C304 releases vapor-phase protection against mold. Most export lines use both. Read why silica gel packets alone are not enough.
Is C304 anti mould bag DMF-free?
Yes. C304 is DMF-free and REACH SVHC documented. DMF-free and REACH notes · PPWR Article 5 test notes.
Are Bester products PPWR compliant?
Yes. Anti-mold inserts are packaging components under the PPWR. Bester meets Article 5 heavy metals (sum of Pb, Cd, Hg and Cr(VI) ≤ 100 mg/kg), plus DMF and REACH SVHC. See PPWR notes and SGS report numbers.
Is placing C304 bags enough to stop export mold claims?
Not always. C304 is the last line of defense inside a sealed shoe box. High material moisture, a damp warehouse, or container rain can still overwhelm the pack. Cooperating customers can add Bester full-process mold prevention service from factory audit to pre-shipment check.
Is a chip or bag enough on its own?
A505 / C304 is the last line of defense — a wet factory or warehouse can still overwhelm the pack
Many factories treat packing as “one chip per box and done.” Mold claims usually start earlier: high material moisture, poor warehouse ventilation, or container rain. Vapor-phase chips suppress spore germination; they cannot dry out a wet line.