GCP 1805 | Halogen-free Insulating Epoxy Coating Powder
Harmonization Code : 3907.30.00.85 | 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. 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.
Typical Applications:
- Class 2 & 3 ceramic capacitors and varistors
- Though-hole tantalum capacitors
- Resistors like bendable thermistors, surge resistors
- Inductors like toroid powder cores
Versions Available:
- Wide range color options - blue, brown, gold, black
- Low stress version for passing thermal cycling test
- Hydrophobic treatment with Aculon Nano-proof 2.1
GCP1805
Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.
Shipping in 12 weeks
Shipping in 12 weeks
Shipping in 12 weeksPackaging
TDS, SDS & Technical Documents
- CAPLINQ Linqsol GCP1805 UL Yellow Card Declaration
- CAPLINQ Linqsol GCP1805 RoHS&Halogen free Declaration Letter
- DK18-05 vs GCP1805 Comparison
- Linqsol GCP1805 SVHC Declaration
- Linqsol GCP1805 Series TDS Aug2020v2
- EpoxyCoatingpowdersHandlingGuide
- SDS_LINQSOL_GCP-1805_(CZ)_v1_00
- SDS_LINQSOL_GCP-1805_(DE)_v1_00
- SDS_LINQSOL_GCP-1805_(HU)_v1_00
- SDS_LINQSOL_GCP-1805_(PL)_v1_00
- SDS_LINQSOL_GCP-1805_(IE)_v1_00
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Other Properties
Chemical Properties
Additional Information
GCP 1805 has low melting temperature (<70 °C) and low curing temperature (<105°C). Its excellent flow properties (35mm) together with low pick up temperature enables coating components without pinholes problem.
GCP 1805 is halogen-free powder, complying with RoHS and REACH requirements. GCP 1805 is also UL-listed with a V-0 flammablity and RTI rating of 130 °C. Thus, it is widely used in the industries for passive components coating.
GCP 1805 powders are available in blue, brown, golden, orange and black, etc. It presents excellent fluidization in dipping equipment. Meanwhile, it provides the best price/performance ratio for your coating process.
Table: GCP 1805 Properties
| Specification | Property |
| Shelf Life @ <25°C | 3 months (from date of shipment) |
| Shelf Life @ <15°C | 6 months (from date of shipment) |
| Volume Resistivity (Ohms⋅cm) | 1.0 x 1015 |
| Breakdown Voltage (kV/mm) | >20 |
| Dielectric Constant @ 25°C | 4.5-5.2 @ 50 Hz |
| Dissipation Factor @25°C | <0.009 @ 1 Hz |
| UL Rating | UL94 V-0 Level |
| Tg (°C) | 108-112 |
| Solvent Resistance | No fading/loss of light in 120s acetone soak |
| Specific Gravity | 0.6-0.85 |
| Water Absorption (Boiling at 100°C for 4 H) | <0.3% |
| Gel Time @ 120°C (sec) | 80-110 |
| Oblique Flow @Tilt angle 45°, oven 120°C (°C) | 25-35 |
| Melting Point (°C) | 55-70 |
| Horizontal Flow @ 120°C for 30 minutes (mm) | 20-24 |
GCP 1805 Main Applications
Linqsol GCP1805 is an UL 94 V-0 listed halogen-free product and pass UL RTI rating of 130 °C. With excellent dielectric properties and low moisture absorption, GCP1805 works best for your passive component applications, including capacitors, resistors, inductors, etc.
Inductor powder cores are coated with epoxy powders to insulate and protect the core from copper wires. To maintain stability and avoid affecting magnectic properties or inductance values, epoxy coating powders must minimize core stress by having low shrinkage and low moisture absorption.
Key Application Considerations
- Magnetic property retention (inductance & loss) is critical
- Parts are made in continuous manufacturing process
- Reducing core stress maintains stability of inductance value
- Parts are preheated, but not post-cured
Key Material Requirements
- Low temperature curing and fast cure speed
- Low shrinkage to reduce core stress
- Low moisture absorption to reduce core stress
GCP 1805 Competitive Analysis
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.
| PROPERTY / PRODUCT | DK 18-05 | GCP 1805 | Comment |
| Recommend Cure Conditions | |||
| Preheat Temperature | 100 ~ 180 °C | 100 ~ 180 °C | Same |
| Cure Conditions | 30 mins @ 110 °C | 30 mins @ 85~105 °C + 120 mins @ 105 °C | Both could be cured under relatively low temperature |
| Pick Up Temperature | Stick Point: 110 °C | Melting Temperature: 55~70 °C | Sticky point/melting tempearture indicate low and quick pick-up |
| Halogen-free | NO | YES | GCP 1805 is halogen-free, better than DK 18-05 |
| RoHS/REACH Compliant | YES | YES | Same |
| Available Colors | ●●● | ●●●● | Similar |
| Typical Cured Properties | |||
| Specific Gravity | 1.64 g/cc | 0.6 ~ 0.85 g/cc | Lower |
| Glass Plate Flow | 32 mm @ 150 °C | 20 ~ 24 mm @ 120 °C | Both have long plate flow |
| Hot Plate Gel Time | 23 sec @ 160 °C | 80 ~ 110 sec @ 120 °C | Not comparable |
| Glass Transition Temperature Tg | 107 °C | 108 ~ 112 °C | Similar |
| Moisture Absorption By Weight | 0.37 % @ 24 hrs RT water | < 0.3% @ 4 hrs boiling water | Low moisture absorption |
| Flammability Rating UL94 | V-0 | V-0 | Same |
| Relative Thermal Index (RTI) Rating UL 743B | 105 °C | 130 °C | GCP 1805 has higher RTI rating Class B |
| Laser Markable | YES | YES | Same |
| Volume Resistivity @ 25°C | 8.4 x 1013 Ω · cm | 1015 Ω · cm | Similar |
| Dielectric Constant @ 25°C | 4.5 @ 100 Hz | 4.5 - 5.2 @ 100 Hz | Similar |
| Dissipation Factor @ 25°C | 0.009 @ 10 kHz | 0.009 @ 10 kHz | Similar |
| Breakdown Voltage | TBD | > 20 kV/mm | Good insulation |
GCP 1805 With Nanoproof Treatment for Passive Electronics Components
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