Zinc Borate for fire retardant PVC cable appliation factory direct supply
Specification
| Appearance |
White fine powder |
| Whiteness |
≥98 |
| ZNO content % |
37-40 |
| B2O3 content% |
47-49 |
| Free water (H2O) % |
≤0.5 |
| Average particle size D50, um |
3-5 |
| Residue 45 um % |
≤0.1 |
| Decomposition°C |
320 |
| Melting point °C |
980 |
| Refractive index |
1.58 |
| Specific gravity, g/cm3 |
2.67 |
Application
Zinc Borate is one environmental-friendly halogen-free flame retardant. There are some formulations of xZnO.yB2O3.zH2O, in which Zinc Borate with 3.5 hydrate is called ZB-2335(2ZnO.3B2O33.5H2O) is the most common used grade. It has owned some excellent properties on non-toxicity, slight solubility in water, good thermal stability, fine particle size, low specific gravity, great free-flowing etc.
1. Zinc borate can be used as multi-functional synergistic additives with antimony oxide or other halogenated flame retardants to significantly improve the flame retardant performance, remove smoke emission and adjust the balance on chemical, mechanical, electrical etc properties.
2. As environmental protection substitute to replace current Antimony Oxide or halogen flame retardants, Zinc borate is directly used in PVC, PE, Polyolefin, Epoxy Polyamide etc resins and rubber process. Moreover, it is widely used in textile, fiber, floor, leather, wall paper, carpet, paint etc decorative materials to improve flame retardant performance.
3. Based on its antistatic properties, zinc borate is widely used in mining plastic material, and used on anti-corrosion, infra red absorption, fungicide for wood preservation fields.
Packaging & Shipping
25kg paper bag, 1FCL=18mt with pallets
Shipping photos
FAQ
Q1: What types of flame retardants does your company specialize in?
A: We offer a comprehensive range of flame retardants including: halogen-free and halogen-based flame retardants, flame retardant masterbatches, inorganic flame retardants.
Our products serve polymers, coatings, textiles, and various industrial applications.
Q2: How does your R&D team support customized solutions?
A: With our advanced laboratory in Hangzhou, we:
• Analyze your material specifications and fire safety requirements
• Develop tailored formulations through extensive testing
• Provide technical documentation including TDS, MSDS
• Offer application guidance for optimal performance
Q3: What certifications do your products hold?
A: Our products comply with:
UL94 (plastic flammability)
ROHS/REACH (environmental standards)
Custom certification support available
Q4: Can you assist with formulation challenges for specific polymers?
A: Yes. Our technical team has successfully solved flame retardancy issues for:
Engineering plastics (PA, PBT, PC/ABS)
Thermoplastics (PP, PE, PVC)
Thermosetting resins (Epoxy, Unsaturated Polyester)
Specialty coatings
Q5: What's your MOQ and lead time?
A: Standard MOQ is 1000kg with 10-20 days production time. For:
Sample orders: 1-25kg available
Urgent orders: Express production options
Stock products: Immediate shipment
Q6: Do you provide application testing support?
A: We offer:
• On-site combustion testing videos
• Technical consultation for your specific substrate
• Comparative performance data vs industry standards
• Failure analysis and solution optimization
Q7: What makes your flame retardants competitive?
→ Balanced performance in flame retardancy vs mechanical properties
→ Cost-effective solutions without compromising quality
→ Regulatory expertise for global markets
→ 12+ years of formulation experience
Q8: How do you handle international logistics?
A: We work with certified forwarders to ensure:
• Proper hazardous material classification (where applicable)
• Efficient customs clearance documentation
• Flexible shipping terms (FOB, CIF, DDU, DDP)
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