Contact ChemPoint's Customer Service Center425.372.9328
Talk to an Expert

BONDERITE® S-FN 109B

73

BONDERITE® S-FN 109B is a graphite dispersion that forms a flexible conductive coating on various surfaces to improve the substrate's electrical properties.

Product Overview

BONDERITE® S-FN 109B (also known as DAG 109B) is a dispersion of high-purity, fine-grain graphite dispersed in solvent and thermoplastic resin. The product dries rapidly, forming a highly flexible, high-adhesion conductive coating on most metals and plastics. The unique combination of adhesion and flexibility enhances the substrate's electrical performance by preventing cracks from forming in the cured coating. Additionally, the high-purity concentration of graphite creates an exceptionally effective conductive coating that finely controls the electrical properties on the substrate surface, making it well suited for electronic devices and components. For optimal performance, BONDERITE® S-FN 109B should be applied using spray equipment or conventional printing techniques, resulting in controlled and evenly distributed film thickness across the surface. Applying the proper thickness and consistency is an important step in ensuring the performance and longevity of the coating, improving electrical conductivity and long-term protection of the underlying material.

Applications

Battery current collector coating
Transformer bushing coating
Cable coating
Flexible conductive coating for plastics and metals

Features & Benefits

Finely dispersed graphite in solvent and thermoplastic resin
Tested for 11 elemental impurities, resulting in a high-purity coating
Highly flexible thermoplastic resin ensures high adhesion to metals and plastics
Flexible coating prevents crack formation in the film
Imparts controlled electrical properties to the substrate surface
Dries rapidly to reduce energy costs and increase production rates

Problems Solved

Impurities within conductive coatings are a common issue that can drastically reduce electrical performance by introducing unwanted resistance or variability, thereby undermining the effectiveness of the coating. Such contaminants can interfere with the conduction pathways, leading to inconsistent electrical output and potential failure of electronic components. Poor adhesion of coatings to either metal or plastic substrates further exacerbates these problems as it leads to peeling, flaking, and a compromised protective layer, reducing the lifespan and reliability of the interface. Additionally, cracks in the conductive coating film are a significant concern, as they can create pathways for corrosive agents, which degrade the substrate and diminish the electrical integrity. Finally, a prolonged cure time incurs higher energy costs and results in production inefficiencies.

Product Specifications

Typical properties of wet product:
Color: Black
pigment: Graphite
Binder: Thermoplastic
Carrier/Diluent: MIBK, MEK, or lacquer thinner
Consistency: Liquid
Viscosity, mPa·s: 1,800
Density, lb/gal: 8.6
Solids content, %: 40
Flashpoint, °F: 61
VOC, lb/gal: 5.2
Theoretical coverage: 365 ft2/gal at 1 mil

Typical properties as cured:
Color: Black
Sheet resistance: 40 ohms/sq at 25 µm (1 mil) dry film thickness
Continuous maximum service temperature, °F: 220

Related Categories

Related Products

Can't find the right product?

ChemPoint Can Help

Online Inquiry

Unlike other distributors, two thirds of our sales team has a science degree.

425.372.9328

Online Inquiry

Send an email to have a ChemPoint expert contact you.

Ask A Question

FAQs

Have a delivery or order question? Check our list of answers.

Frequent Questions

Hi, let us know if you have any product questions as you visit our website.

ChemPoint reps are here to assist you