Beginner's Guide to Paraffin Wax: Solving Cracking, Mold & Demolding Failures

2025-05-20

Why Does My Paraffin Wax Crack?


Key Causes

✅ Rapid Cooling: Wax shrinkage exceeds 6% when cooled >2°C/min
✅ Low-Grade Wax: Impurities (<0.5% oil content) weaken structural bonds
✅ Wrong Additives: Overuse of stearic acid (>15%) causes brittleness


Junda's Solutions

🔧 Use Our High Melt Point Wax

  • 60-66°C melting range reduces thermal stress

  • 98.6% purity minimizes micro-cracks

  • Add 3-5% microcrystalline wax (Ask for free samples!)


⚠️ Pro Tip: Preheat molds to 45-50°C – our tests show 80% crack reduction


2. How to Prevent Mold Growth in Wax Products?


Root Causes

✅ Humidity Absorption: Unrefined wax holds 0.1%+ moisture
✅ Organic Contamination: Natural oils attract fungi
✅ Storage Issues: Temperatures 25-35°C accelerate spoilage


Fushun's Anti-Mold Technology

🔧 Hydrotreated Paraffin Wax (HPW Series)

  • <0.02% moisture content via vacuum dehydration

  • Food-grade oxidation stabilizers inhibit microbial growth

  • UV-resistant packaging for tropical climates

📦 Storage Guide: Keep below 22°C with our silica gel container inserts (Free with bulk orders)


3. Why Won’t My Wax Release from Molds?


Failure Analysis

✅ Surface Roughness: Ra >3.2μm causes mechanical locking
✅ Wax-Mold CTE Mismatch: ΔCTE >2×10⁻⁵/°C creates vacuum adhesion
✅ Inadequate Release Agents: Silicone sprays leave residue


Technical Support Hub


At Junda Paraffin, we provide:
Free Wax Analysis – Send samples for XRD impurity testing
Custom Blending – Solve humidity/temperature challenges
Video Consultations – Live troubleshoot with our engineers



Why Choose Junda Paraffin?

✔ ISO 9001 & REACH Certified Factory
✔ 2,000+ Metric Tons Monthly Capacity
✔ Low MOQ: Trial orders from 1000kg accepted



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