UF2 strengths
Die-through purging without die removal. Fits PE film and sheet jobs prioritizing low residue; TDS states no soak
Suited residue
Gels and not-yet-carbonized contamination; not the primary pick for severe carbon
ASACLEAN grade · PE low residue
UF2ASACLEAN grade · low-residue PE
Low-residue grade for PE film and sheet, die-through purging capable
Fits transparent or unreinforced jobs, clearing gels and not-yet-carbonized residue
170–320°COperating temperature
Definition & positioning
What jobs fits UF2
UF2 is a low-residue purging compound for PE film and sheet and PE jobs needing die-through purging without die removal. Fits transparent jobs, color or material change, and not-yet-carbonized gels
- Process
- Extrusion sheet, blown film, profile and compounding; injection including Hot Runner
- Resin
- PE-based resins, especially film and sheet
- Temperature
- 170–320°C
- Objectives
- Low residue, transparent jobs, color and material change, and not-yet-carbonized gels
- Hot Runner
- Usable with minimum 0.5 mm passage
- Glass Fiber / Additives
- TDS notes inorganic additives below 10%, type unstated
- Chaser
- TDS states use as post-NewEX chaser to raise cleanliness and cut residue
- Residence / Screen
- Max 30 min residence above 280°C; screen packs no finer than 100 mesh, renewed after purging
Limits before use
Never over 320°C; verify passage of at least 0.5 mm and renew screen packs after purging
Check on site: Film and sheet type, die, screen mesh, temperature and residue criteria
Basic operation
Basic usage
- Confirm resins before and after purging are PE-based resins and temperature sits within 170–320°C
- Verify die clearance of at least 0.5 mm and screen packs no finer than 100 mesh
- Feed UF2 per trial plan; TDS states no soak
- Renew screen packs after purging, then chase with PE until residue criteria pass
Extrusion guide · Extrusion purging article · Purge and Rinse
Technical documents
Check the TDS before real use — especially die clearance, screen mesh, residence time and screen-pack renewal steps
Download UF2 TDS · July 2021SDS under review
UF2 FAQ
At what temperature does UF2 run
The TDS range is 170–320°C
Can UF2 clean carbon residue
TDS covers gels and not-yet-carbonized residue — do not auto-substitute it for severe-carbon grades
Can UF2 run Hot Runner
Yes with minimum 0.5 mm passage; the real flow path must be checked first
Plan a controlled trial for UF2
CSC technicians verify PE film and sheet, die and residue criteria
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