BCP-1509 | Medium voltage Busbar Coating Powder

Harmonization Code : 3907.30.00.90 |   Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms : Epoxide resins : Other
Main features
  • Reddish Brown Color
  • Up to 3mm thickness
  • RTI Class B

Product Description

LINQSOL BCP-1509 is a Reddish brown, busbar epoxy coating powder. It aims at medium to high voltage busbar applications. It performs uniform and smooth coating results from 0.3mm to 3mm.

It is especially suitable for large busbar applications used for power distribution. With optimized gel time and flow, it allows large busbars with high heat capacity dip multiple times in fluidized bed to build thickness as high as 3mm without dripping and sag. BCP-1509 meets the UL 746B Relative Thermal Index (RTI) of 130°C and CTI 600V.  For small busbar applications, we recommend BCP-1507 with powder quick build rate. 


  • Aims at medium to high voltage application
  • Comparable with DK19
  • Good adhesion to copper, alumina 
  • Thick and no-sag coating performance
  • Both electrostatic spray and fluidized bed coating

Recommended coating Temperature:

  • 180 – 230 °C. (200 °C x 30 min)
Product Family
25Kg Drum

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

General Properties
The color
Reddish Brown
Process Method Fluidized bed, electrostatic spray
Specific Gravity
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.

For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
Shelf Life
Shelf Life
Shelf life is the amount of time after manufacturing that a product is guaranteed to retain its properties.

It differs vastly per product and it is based on temperature and storage conditions.

The properties can be guaranteed for the temperature and time range indicated on the TDS since those are the ones tested to be the best for the product.
Shelf Life @ 25°C 183 days
Electrical Properties
Breakdown Voltage
Breakdown Voltage
Breakdown voltage is the minimum voltage necessary to force an insulator to conduct some amount of electricity.
It is the point at which a material ceases to be an insulator and becomes a resistor that  conducts electricity at some proportion of the total current. 

After dielectric breakdown, the material may or may not behave as an insulator any more because of the molecular structure alteration. The current flow tend to create a localised puncture that totally alters the dielectric properties of the material.

This electrical property is thickness dependent and is the maximum amount of voltage that a dielectric material can withstand before breaking down. The breakdown voltage is calculated by multiplying the dielectric strength of the material times the thickness of the film.
35 V
Volume Resistivity
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
1.0x10-13 Ohms⋅cm
Mechanical Properties
Edge Coverage 45 %
Impact Strength 500 mm
Thermal Properties
Gel Time
Gel Time
Gel time is the time it takes for a material to reach such a high viscosity (gel like) that it is no longer workable.

It is usually measured for different temperature conditions and even though it does not refer to full cure it is advisable to never move or manipulate the material after it reached its gel time since it can lose its desired end properties.
Gel Time @ 177°C / 351°F 60 s
Glass Plate Flow
Glass Plate Flow
Glass plate flow determines the flow distance of thermosetting epoxies, resins or coating powders on a smooth inclined glass surface in a certain time and temperature.

This value is the distance in millimetres from the upper point of the original position of the pellet to the point of extreme flow.

Typically measured at 150°C but please check the TDS for more info
18 mm
UL 94 Rating
UL 94 Rating
Flammability rating classification.
It determines how fast a material burns or extinguishes once it is ignited.

HB: slow burning on a horizontal specimen; burning rate less than 76 mm/min for thickness less than 3 mm or burning stops before 100 mm
V-2: burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.
V-1: burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
V-0: burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
5VB: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole.
5VA: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may not develop a hole
Other Properties
RoHS Compliant
RoHS Compliant
RoHS is a product level compliance based on a European Union Directive which restricts the Use of certain Hazardous Substances in Electrical and Electronic Equipment (RoHS).

Products compliant with this directive do not exceed the allowable amounts of the following restricted materials: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE), with some limited exemptions

Additional Information


BCP-1509 Fluidized Bed Coating Performance 
Preheat Temperature Dip Times Minimum Coat Thickness Breakdown Voltage Pass
200°C 1 0.35 mm >20 kV
200°C 4 0.60 mm >20 kV
240°C 4 0.75 mm >20 kV
240°C 7 1.10 mm  >20 kV

Busbar for testing: Aluminum strip (75mm x 50mm x 5mm)

Breakdown volatge test: DC holiday detector


  • Coating appearance: Smooth, no-sag, no-dripping, great edge coverage
  • Coating process: Quick build rate on thickness
  • Suitable thickness: both thin and thick thickness (>1mm)


BCP-1509 presents excellent coating performance. BCP-1509 is developed based on BCP-1507 with slightly lower flowability while melting, thus has less chance to drip or sag with multiple dipping times.  It is designed to coat more than 3mm on large size busbars or copper busbars.

BCP-1509 Powder In Fluidized Bed


Store in a ventilated, dry, and clean environment below 25°C. Keep away from fire and heat sources. It is strictly forbidden to store in outdoor environments. At proper storage conditions, the product has a shelf life of 6 months.


  • Avoid long-term skin contact. Powder that touched the skin should be rinsed off quickly.
  • During operation dust-proof masks should be used to avoid inhalation.
  • Keep the oven temperature stable, so as not to affect the colour and quality of the coating due to excessive temperature deviation.
  • The concentration of dust should be controlled within a safe range to avoid malfunction of the coating equipment.

Linqsol Busbar Coating Products Selection Guide

  BCP-1000 BCP-1504 BCP-1507 BCP-1509
Specific Gravity, g/cc 1.45±0.05 1.52±0.05 1.50 1.50
Glass Plate Flow 18-22mm@150°C, 45° 10-22mm@150°C, 60° 19-20 mm@180°C 19-20 mm@180°C
Hot Plate Gel Time 70 sec@150°C 45±15 sec@160°C 60 sec@180°C 60 sec@180°C
Edge Coverage, % 45 45 45 45
Hardness, shore D >80 >90 - -
Impact Resistance, cm >50 >50 >50 >50
Dielectric Strength (kV/mm) >42 >35 >35 >35
Flammability, UL94 V-0 V-0 V-0 V-0
Min. Coating Thickness 0.3mm 0.3mm 0.1mm 0.3mm
Max. Coating Thickness 1mm 1mm 2mm 3mm
Electrostatic Spray ■■■ ■□□ ■■■ ■■■
Dip Coating ■□□ ■■■ ■■■ ■■■
Available Color

Preheat Temperature 180~240 °C 150~180 °C 180~230 °C 180~230 °C
Curing Conditions 200°C x 15min 200°C x 15min 200°C x 30min 200°C x 30min