Microcrystalline Wax
Microcrystalline Wax: A Premium Industrial Solution
Microcrystalline wax is a refined petroleum-based wax with unique physical properties that make it ideal for various industrial applications. Unlike paraffin wax, microcrystalline wax has finer crystals and higher molecular weight, giving it superior flexibility, adhesion and water resistance.
Key Product Specifications
- Melting Point: 140-190°F (60-88°C)
- Penetration: 10-70 dmm at 77°F (25°C)
- Oil Content: 3-20% by weight
- Color: White to dark brown
- Odor: Low to no detectable odor
- Viscosity: 8-20 cSt at 210°F (99°C)
Microcrystalline Wax Grade Comparison
| Property | Soft Grade | Medium Grade | Hard Grade |
|---|---|---|---|
| Drop Melt Point (°F) | 140-155 | 156-170 | 171-190 |
| Needle Penetration | 50-70 | 30-49 | 10-29 |
| Viscosity @ 210°F (cSt) | 8-10 | 11-15 | 16-20 |
| Primary Applications | Adhesives, Coatings | Candles, Packaging | Polishes, Rubber |
Frequently Asked Questions About Microcrystalline Wax
Q: What is the difference between microcrystalline wax and paraffin wax?
A: Microcrystalline wax differs from paraffin wax in several key aspects. It has smaller, finer crystals compared to the larger crystals in paraffin wax. Microcrystalline wax also has higher molecular weight, greater flexibility, better adhesion properties, and higher viscosity. These characteristics make microcrystalline wax more suitable for applications requiring pliability and water resistance.
Q: What industries commonly use microcrystalline wax?
A: Microcrystalline wax serves multiple industries including cosmetics (for lipsticks and creams), food (as a coating agent), pharmaceuticals (for tablet coating), adhesives, rubber, candles, and polishes. Its excellent binding properties make it valuable in hot-melt adhesives, while its water resistance makes it ideal for corrosion protection coatings.
Q: How should microcrystalline wax be stored for optimal shelf life?
A: Microcrystalline wax should be stored in a cool, dry place away from direct sunlight and heat sources. Ideal storage temperature is between 60-80°F (15-27°C). Keep containers tightly sealed when not in use to prevent contamination and moisture absorption. Properly stored, microcrystalline wax can maintain its properties for 2-3 years.
Applications of Microcrystalline Wax
The versatility of microcrystalline wax comes from its unique combination of properties:
- Cosmetics: Provides structure in lipsticks and creams
- Food Industry: Used for coating fruits and cheeses
- Pharmaceuticals: Tablet coating and binder
- Industrial: Component in hot-melt adhesives
- Automotive: Protective coatings for metal parts
Technical Advantages
Microcrystalline wax offers several technical advantages that make it superior for specific applications:
- Excellent moisture barrier properties
- Superior flexibility at low temperatures
- Enhanced adhesive qualities
- Higher viscosity than paraffin waxes
- Better oil retention capabilities
Handling and Safety Information
When working with microcrystalline wax:
- Use appropriate PPE (heat-resistant gloves, eye protection)
- Melt in well-ventilated areas
- Never heat above 400°F (204°C) to prevent decomposition
- Store away from oxidizing agents
Quality Assurance
Our microcrystalline wax undergoes rigorous quality testing including:
| Test | Method | Specification |
|---|---|---|
| Melting Point | ASTM D127 | ±2°F tolerance |
| Penetration | ASTM D1321 | ±3 points |
| Viscosity | ASTM D445 | ±1 cSt |
| Oil Content | ASTM D721 | ±0.5% |