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DOLPHS SPRAY SYNTHITE ER-43/368-D 400 ml red insulating varnish thermal class H
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Description
DOLPHS SPRAY SYNTHITE ER-43/368-D 400 ml red insulating varnish for PCB and windings
DOLPHS SPRAY SYNTHITE ER-43/368-D 400 ml is a red electrical insulating varnish in aerosol form, designed for protecting electrical and electronic components. It dries quickly at room temperature and forms a hard, smooth and flexible protective coating resistant to moisture, oil, abrasion and selected chemical agents.
The aerosol format makes local application easier, especially on smaller parts, hard-to-reach areas and components that require spot protection without using a brush, dipping process or spray gun. It is a practical choice for maintenance, service work, electrical engineering, electronics and post-assembly protection of components.
Application of DOLPHS SPRAY SYNTHITE ER-43/368-D
This insulating varnish can be used as a protective and insulating coating for electrical and electronic parts, especially where resistance to temperature, moisture, oil and operational contamination is important.
Typical applications include protection of printed circuit boards, solder joints, coils, windings, stator windings, transformer windings, electrical connections, busbars, commutator ends, solenoid coils, electric motor parts, switch holders and selected phenolic components.
What makes DOLPHS SPRAY SYNTHITE ER-43/368-D different
The key advantage of this product is the combination of high thermal class and convenient aerosol application. After drying, the coating is hard and abrasion-resistant while remaining flexible, which is important for components exposed to vibration, temperature changes or periodic contact with moisture.
DOLPHS SPRAY SYNTHITE ER-43/368-D is red, which is useful where the protective coating should remain clearly visible during quality control, inspection or service work.
When to choose this insulating varnish
This product is a good choice when fast local application, a visible red protective coating and resistance to moisture, oil and abrasion are required. It is suitable for protecting components after repair, during maintenance work and in applications where dipping or larger-scale coating equipment would be impractical.
Important notes before use
The surface should be clean, dry and degreased before application. For the 400 ml aerosol version, dilution instructions should not be treated as instructions for the spray product. Dilution with T-200 or T2 applies to spray gun application from liquid packaging. Avoid applying an excessively thick single coat to ensure proper solvent evaporation and coating formation.
Technical data of DOLPHS SPRAY SYNTHITE ER-43/368-D 400 ml
| Parameter | Value |
|---|---|
| Product type | Red electrical insulating varnish in aerosol form |
| Product designation | SYNTHITE ER-43/368-D |
| Packaging | 400 ml DOLPH-SPRAY Aerosol |
| Base | Solvent-based air-drying polyester insulating varnish |
| Colour | Red |
| Thermal class | Class H up to 180°C according to UL 1446 |
| UL certification | OBOR2.E317427 and OBJS2.E317429 |
| Specific gravity at 25°C | 1100 ± 50 g/l |
| Viscosity DIN No. 4 at 25°C | 110–150 s |
| Dry film thickness DFT | 0.075–0.100 mm |
| Corrosive effect on copper | None |
| Drying time on copper to set-to-touch condition | 60 minutes |
| Surface dry at 20°C | 30–45 minutes |
| Full properties at 20°C | 24 hours |
| Dry dielectric strength ASTM D-115 | 2000 V / 0.025 mm |
| Dielectric strength after 24 h in water ASTM D-115 | 1200 V / 0.025 mm |
| CTI IEC 60112 | 600 V |
| Chemical resistance | Water, salt water, 10% sulphuric acid, 1% NaOH, transformer oil |
| Thinner for spray gun application from liquid packaging | T2 or T-200 |
Storage
Store the product in its original packaging, in a cool place, away from direct sunlight and sources of heat. Before use, refer to the current safety data sheet and the manufacturer’s recommendations for safe handling of aerosols and solvent-based varnishes.
FAQ
What is DOLPHS SPRAY SYNTHITE ER-43/368-D used for?
It is used as a protective and electrical insulating varnish for electronic and electrical components, including PCB, coils, windings, electrical connections and selected motor parts.
Is DOLPHS SPRAY SYNTHITE ER-43/368-D suitable for PCB protection?
Yes. The product is suitable for electronics and printed circuit boards where a visible red protective coating is required.
Can this varnish be used on windings and coils?
Yes. The product is intended for applications including coils, stator windings, transformer windings, solenoid coils and electric motor components.
Does the 400 ml aerosol need to be diluted?
No. The aerosol version is ready to use. Information about T-200 or T2 thinner applies to spray gun application from liquid packaging, not to the ready-to-use 400 ml aerosol.
How long does the coating need to reach full properties?
According to the technical data, the surface becomes dry after approximately 30–45 minutes at 20°C, while full properties are reached after approximately 24 hours at 20°C.
DOLPHS SPRAY SYNTHITE ER-43/368-D 400 ml is a practical choice when a visible red electrical insulating coating is needed in a convenient aerosol form for service, maintenance, electrical and electronic applications.
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