Fisnar Nib Polyester Chisel

The Fisnar 381-8425-PC is a polyester chisel-style replacement nib designed for use with Fisnar Flow-Seal pens such as FV-0100, FV-0200, and FV-0300. The chisel tip delivers broad, even fluid application - ideal for surface coating, edge marking, and smooth bead dispensing in precision work environments.

Key Features:
*Polyester construction ensures excellent chemical resistance and compatibility with a wide range of low- to medium-viscosity fluids including adhesives, fluxes, inks, and solvents.
*Chisel-shaped tip allows for flat-edge or angled application, offering superior control over line width and surface coverage.
*Flow-Seal compatible, integrating seamlessly with spring-loaded dispensing pens to avoid fluid leakage, evaporation, or clogging.
*OEM-quality ensures consistent fit, reliable operation, and precision dispensing.

Specifications:
*Manufacturer: Fisnar
*Part number: 381-8425-PC
*Material: Polyester
*Tip shape: Chisel
*Compatible with: Fisnar Flow-Seal pens (FV-0100, FV-0200, FV-0300)
*Color: Natural or white (typical for polyester nibs)

Applications:
This polyester chisel nib is ideal for tasks requiring smooth, wide-area fluid distribution:
*Electronics - Applying flux, conformal coatings, and adhesives across PCB surfaces.
*Manufacturing and assembly - Dispensing primers, greases, or sealants with controlled width.
*Laboratory and R&D - Distributing solvents, cleaning agents, or reagents evenly on test surfaces.
*General fluid dispensing - Suitable for wide-bead application in marking, coating, or bonding tasks.

Usage Guidelines:
*Install by securely inserting the nib into the pen valve after removing the old one.
*Fill the pen reservoir with a 19 mm air gap to support spring-activated priming.
*Prime by pressing the nib tip vertically onto a surface until fluid flows evenly.
*Replace the nib as needed if dispensing becomes irregular or the tip shows signs of wear.