• x

GCP 1805 | Halogen-free Insulating Epoxy 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
  • Blue and Gold Colors
  • Halogen-free Epoxy Coating Powder
  • For class 2 & 3 capacitors and varistors

Product Description

LINQSOL™ GCP1805 is an insulating epoxy coating powder for capacitors, varistors and other passive components.  It was designed specifically as a halogen-free version of DK18-05 with similar technical specifications, just without containing any of the halogens.

LINQSOL GCP-1805 epoxy coating powders can be applied through a fluidized bed with temperatures as low as 105°C.

LINQSOL™ GCP1805 can be used for most class 2 & 3 ceramic capacitors and varistors. Its excellent curing conditions make the epoxy coating powder also very suitable for tantalum capacitors and other temperature-sensitive devices.

LINQSOL™ GCP1805 epoxy coating powders are laser markable and are rated with a UL 94 V-0 flammability and RTI rating of 130°C.


Used for insulation & coating of:

  • Class 2 & 3 ceramic capacitors and varistors
  • Tantalum capacitors
  • Resistors
  • Passive components
  • Temperature sensitive devices
Product Family
15Kg box 1Kg box

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
Chemistry Type Epoxy
The color
Density (g) 1.5 g/cm3
Process Method Fluidized bed
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.
Particle Size
Particle Size thru 325 mesh 6-16 %
Particle Size thru 80 mesh 100 %
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 @ 15°C 12 months
Thermal Properties
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
25 - 35 mm
Glass Transition Temperature (Tg)
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.

The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
157 °C
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
Melting Temperature
Melting temperature 55 - 70 °C
Other Properties
Confirmation of tested functions, characteristics of a product.
UL 94 V-0
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

The following table shows the comparison of GCP1805 compared to DK18-05.


It could be seen from the table that the properties of GCP1805 are quite similar to DK18-05. The important features are the optimized pickup temperature and the low cure temperatures as low as 110°C. GCP1805 is expected to have a similar coating performance as DK18-05. It is suggested to coat GCP1805 powder for your passive components under the same preheating and curing conditions for DK18-05. Based on the trial results, the coating process could be further adjusted and optimized.

GCP 1805 Epoxy Coating Powder for Passive Electronics Components



GCP 1805 for Toroid Cores and Inductor applications