Microcrystalline Wax & Slack Wax Supplier
Sinolook supplies petroleum wax to manufacturers worldwide — six grades of microcrystalline wax (drop melting point 67–81°C) plus slack wax, sourced from refineries in China, Korea and Thailand. SGS-inspected, with COA on every shipment.
Petroleum wax for industrial & consumer manufacturing
Petroleum wax is a core part of Sinolook's petrochemical line. We supply two main families: microcrystalline wax — high-melting, fine-crystal wax prized for flexibility and adhesion — and slack wax, a versatile semi-refined feedstock for further processing.
Our grades cover drop melting points from 62°C to 81°C and oil content from under 1% to around 8%, so customers can match wax to their exact application — candles, rubber, packaging, polishes, adhesives or downstream refining. Every shipment ships with a full SGS-verified Certificate of Analysis.
Microcrystalline Wax
Six grades sourced from China and Korea, covering low to high melting points. CAS No. 63231-60-7.
Microcrystalline Wax — Grade Comparison
CAS 63231-60-7 · HS 2712.90Microcrystalline wax has finer, less-ordered crystals than paraffin, giving it higher flexibility, tackiness and a higher melting point. Used in cosmetics, rubber compounding, adhesives, coatings and candle blending.
| Item / Grade | 70# | 75# | 80A | 80B | 160S | 170S | Test Method |
|---|---|---|---|---|---|---|---|
| Appearance | Bright & Clear | Bright & Clear | Bright & Clear | Bright & Clear | Bright & Clear | Bright & Clear | Visual |
| Drop Melting Point, °C | 67.6 | 74.2 | 80.6 | 79.7 | 68.5 | 77.1 | ASTM D127 |
| Colour | 0.5 | L1.5 | L1.5 | 2.0 | L0.5 | L0.5 | ASTM D1500 |
| Oil Content, wt % | 1.16 | 0.8 | 1.6 | 1.25 | 8.2 | 4.3 | ASTM D721 |
| Kinematic Viscosity, cSt | 6.63 | 11.9 | 11.87 | 17.51 | 11.5 | 21.5 | ASTM D445 |
| Penetration (25°C), 1/10mm | 23 | 16 | 15 | 21 | — | — | GB/T 4985 |
| Penetration (35°C), 1/10mm | 36 | 24 | 23 | 31 | — | — | GB/T 4985 |
| Specific Gravity | — | — | — | — | 0.83 | 0.84 | ASTM D1298 |
| Flash Point (Open), °C | — | — | — | — | 245 | 265 | ASTM D92 |
| Origin | China | China | China | China | Korea | Korea | — |
Need a specific melting point or oil content not listed? We can source custom grades — tell us your target spec.
Slack Wax
Semi-refined wax with controlled oil content, sourced from Thailand. CAS No. 64742-61-6.
Slack Wax — Grade Comparison
CAS 64742-61-6 · HS 2712.20Slack wax is a by-product of lube base oil refining, used as a feedstock for fully-refined paraffin, candles, board sizing, emulsions, fire-logs and rubber. Oil content varies by grade, giving customers a cost-effective wax for downstream processing.
| Item / Grade | 500SW | BSSW | Test Method |
|---|---|---|---|
| Appearance | Bright & Clear | Bright & Clear | Visual |
| Drop Melting Point, °C | 62.6 | 76.2 | ASTM D127 |
| Colour | L0.5 | L1.0 | ASTM D1500 |
| Oil Content, wt % | 4.25 | 1.86 | ASTM D721 |
| Kinematic Viscosity, cSt | 7.13 | 18.25 | ASTM D445 |
| Penetration (25°C), 1/10mm | 22 | 23 | GB/T 4985 |
| Specific Gravity | 0.84 | 0.86 | ASTM D1298 |
| Flash Point (Open), °C | 268 | 308 | ASTM D92 |
| Origin | Thailand | Thailand | — |
Slack wax is available in other oil-content grades on request — contact us with your requirement.
What our wax is used for
Microcrystalline wax and slack wax serve a wide range of industrial and consumer manufacturing sectors.
Why source wax from us
Multi-origin supply
Grades from China, Korea and Thailand refineries — flexibility on melting point, oil content and price point.
SGS COA per shipment
Every batch ships with a full Certificate of Analysis verifying melting point, oil content, colour and viscosity.
Custom grades
Need a melting point or oil content between our standard grades? We source to your target specification.
Flexible packaging & MOQ
Bagged on pallets, drums, IBC or ISO tank for liquid grades. Low MOQ on trial orders for new customers.
Packaging options for global delivery
Solid wax ships bagged on pallets or in cartons; liquid/molten grades ship in drums, IBC totes or ISO tanks. Delivered worldwide from our bonded storage network.
Bags / Drums
25kg kraft-paper bags on pallets, or steel drums for solid wax. Standard for microcrystalline & slack wax.
IBC totes (1,000 L)
For molten / liquid wax grades requiring heated handling. Reusable on request.
ISO tanks
Most cost-effective for bulk liquid wax shipments with temperature-controlled discharge.
Wax — frequently asked questions
What's the difference between microcrystalline wax and slack wax?
Microcrystalline wax has fine, irregular crystals giving high flexibility, tackiness and a higher melting point — ideal for cosmetics, adhesives and rubber. Slack wax is a semi-refined by-product of lube oil refining with higher oil content, used mainly as a feedstock for further refining, candles, and emulsions. Microcrystalline wax is a finished product; slack wax is often an intermediate.
Which microcrystalline wax grade should I choose?
It depends on your melting point and hardness needs. Lower grades like 70# (melting point 67.6°C) are softer and more flexible; higher grades like 80A (80.6°C) are harder with higher melting points. 160S and 170S are Korean grades with distinct viscosity profiles. Send us your application and we'll recommend the best match — or request samples of several grades to test.
Can you provide a Certificate of Analysis (COA)?
Yes. Every shipment includes a full COA listing drop melting point, colour, oil content, kinematic viscosity, penetration and (where applicable) flash point and specific gravity, tested to ASTM and GB/T standards. Pre-shipment SGS inspection is available on request, and we send sealed samples before bulk orders.
What is the minimum order quantity for wax?
For solid wax in bags, MOQ typically starts at 1 pallet for trial orders, scaling to full container loads (FCL). For liquid/molten grades in IBC or ISO tank, MOQ is 1 tote or 1 tank. New customers are welcome to start with a small trial order to evaluate quality before committing to bulk.
Where is your wax sourced from?
Our microcrystalline wax grades 70#–80B are produced in China, while 160S and 170S come from Korea. Slack wax grades 500SW and BSSW are sourced from Thailand. Multi-origin sourcing lets us offer a range of melting points, oil contents and price points, with backup supply options on every grade.
Can you source custom wax grades?
Yes. If you need a melting point, oil content or colour outside our standard grades, we can source to your target specification through our refinery network. Email us your spec sheet and we'll confirm availability, lead time and pricing.
Ready to order microcrystalline or slack wax?
Tell us the grade, target melting point and oil content, quantity and destination port — we'll respond within 24 hours with COA samples and a delivered quotation.
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