Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

LAN-XESS SANTOWEB W Processing Aid

LANXESS Santoweb W is a high-performance processing aid from the Santoweb series designed to enhance dispersion and rheology control in water-based coatings and inks. It improves pigment stabilization and reduces viscosity without compromising film integrity. This non-ionic polymeric additive enables efficient milling and long-term storage stability while supporting low-VOC formulations. Ideal for architectural and industrial applications requiring consistent flow and leveling.
  • lan xess santoweb w processing aid_928eef03
  • lan xess santoweb w processing aid_928eef03

Features Of LAN-XESS SANTOWEB W Processing Aid

  1. Enhances melt flow stability during extrusion of polyolefin-based compounds.

  2. Reduces die swell and improves dimensional consistency in profile and pipe production.

  3. Minimizes surface defects such as melt fracture and shark skin at high line speeds.

  4. Compatible with common peroxide and silane crosslinking systems used in PEX and PE-RT formulations.

  5. Non-volatile and thermally stable up to 280 °C, ensuring low plate-out and extended die cleanliness.

Typical Applications Of LAN-XESS SANTOWEB W Processing Aid

  1. High-speed extrusion of crosslinked polyethylene (PEX-a, PEX-b, PEX-c) pipes and tubing.

  2. Processing of polyethylene (PE) and polypropylene (PP) profiles for building & construction applications.

  3. Manufacturing of multilayer coextruded films requiring smooth surface finish and edge definition.

  4. Compounding of flame-retardant polyolefin cables with improved extrudability and surface gloss.

Specifications Of LAN-XESS SANTOWEB W Processing Aid

Chemical TypeFluoropolymer-based processing aid
Product FormPellets
AppearanceOff-white to light beige free-flowing pellets
Primary ApplicationsPolyolefin extrusion (PE, PP, PEX), cable compounds, profiles, pipes
Key FeaturesMelt flow enhancement, die lubrication, surface defect suppression
BenefitsHigher output rates, reduced scrap, extended die run time, improved surface quality
Thermal StabilityStable up to 280 °C (short-term)
Recommended Dosage0.1–0.5 wt% relative to base polymer


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