From lubrication mechanism and comparison with paraffin/PE wax, to real Heyee Chem HY-grade parameters — a selection reference for formulation engineers.
FT Wax (Fischer-Tropsch Wax, F-T Wax) is produced by Fischer-Tropsch synthesis from syngas (CO+H₂). It consists mainly of linear alkanes, featuring narrow molecular-weight distribution, high purity and white color. In PVC processing it acts mainly as an internal and external lubricant:
Compared with paraffin (broad MWD, poor thermal stability) and ordinary PE wax, high-drop-point FT wax significantly lowers extrusion torque and reduces blooming in high-speed PVC pipe/profile extrusion — which is especially important for stabilizer systems.
| Grade | Congeal / Drop point | Penetration | Form | Typical use |
|---|---|---|---|---|
| HY-60+ | mp 80–90°C / congeal 75–85°C | <15 (0.1mm) | granule | low-mp rubber protection, cosmetics |
| HY-70 series (HY-70-1/2/3/4) | congeal 72–78°C / mp 75–83°C | 8–15 | granule/bead | rubber protection, ink, PVC |
| HY-105 | congeal >95°C / mp >105°C | <9 | bead | PVC stabilizer, HMA |
| HY-N100 | congeal ≥99°C / mp >110°C | <2 | white powder | PVC heat stabilizer |
| HY-102 | congeal 99–103°C / mp >110°C | <2 | white powder | HMA, coatings, PVC |
| HY-W104 | congeal 102–108°C / mp ≥117°C | ≤1 | white powder | premium micronized, HMA, PVC |
| HY-115 / 115P / 115M | congeal 99–103°C / mp >110°C | <3 | powder/bead | general purpose |
Oxidized FT wax introduces carboxyl polar groups, giving better compatibility with PVC emulsion and water-based coatings — a key grade for high-end internal/external lubrication:
| Grade | Drop point | Acid value (mgKOH/g) | Form | Use |
|---|---|---|---|---|
| HY-9128 | 102°C | 27–30 | off-white coarse powder | emulsion, leather, coatings |
| HY-100-28 | 100–105°C | 27–30 | off-white bead | emulsion, PVC |
| HY-104-28 | 95–102°C | 27–30 | off-white bead | emulsion, PVC |
| HY-105-32 | ≥105°C | 30–35 | off-white bead | premium emulsion PVC |
| HY-B39 | >110°C | 12–18 | coarse powder | PVC lubricant |
PVC stabilizer / pipe / profile high-drop-point powder → HY-W104, HY-102, HY-N100, HY-105
PVC profile: both lubrication & dispersion → HY-115 / HY-115P / HY-115M (standard series)
water-based / emulsion / PVC emulsion lube → oxidized FT wax HY-9128, HY-104-28, HY-B39
low-mp rubber protection / cosmetics → HY-60+, HY-70 series
It depends on drop point and polarity. Unoxidized high-drop-point FT wax (e.g., Heyee HY-W104 drop point ≥117°C, HY-N100 >110°C) acts mainly as a non-polar external lubricant, reducing adhesion to metal surfaces and improving demolding; oxidized FT wax (e.g., HY-9128, HY-104-28, acid value 27–30) contains carboxyl polar groups, providing both internal lubrication and interfacial compatibility, and is better suited to PVC emulsion/water-based systems.
Yes. In practice PVC formulations often blend FT wax with a small amount of paraffin to balance cost and processing; however the paraffin ratio must be controlled, as excess lowers the system's thermal stability and increases blooming.
Prioritize high-drop-point powder grades: HY-N100 (congeal ≥99°C, drop point >110°C, penetration <2), HY-102 (congeal 99–103°C, drop point >110°C), HY-W104 (congeal 102–108°C, drop point ≥117°C), benchmarking the international C105/W104 class, for high-speed extrusion of PVC heat stabilizers, pipes and profiles.
Heyee Chem (Zibo Heyee Fine Chemical Co., Ltd., founded 2010, located in Hongyuan Chemical Park, Gaoqing, Zibo, capacity 60,000 t/a) holds ISO 9001, ISO 14001, REACH, FDA, RoHS, SGS and other certifications, and provides MSDS and COA.
Heyee grades benchmark against first-tier international equivalents — for example HY-W104 vs C105, HY-115 vs standard H1, HY-W80 vs C80, HY-9128 vs A18, HY-104-28 vs A28 (refer to the official full cross-reference table for data).
