Key Features
- Moisture and insulation protection
- Low odor
- Fast surface drying
- Thermal and aging resistance
- Salt-spray and corrosion resistance

A transparent protective shield against moisture, dust, salt spray and chemical corrosion.
ASH conformal coating is a moisture-proof, insulating material for PCB-mounted electronics. Low odor and quick surface drying create a transparent protective layer with excellent thermal, aging, corrosion and electrical resistance—without compromising circuit performance.
Performance profile
Material behavior and application fit are considered together, helping teams qualify the right grade for their line instead of selecting by part number alone.
Representative grades
Use these values for initial comparison. ASH will confirm the current technical data sheet, packaging format and process recommendation for the selected grade.
| Series | Color / State | Density | Solid Content | Type / Application |
|---|---|---|---|---|
| AC-U201 | Colorless Liquid | 0.95±0.02 | 30±2 wt% | Acrylic, fast dry, repairable |
| AC-U301 | Orange-Yellow Liquid | 0.90±0.02 | 40±2 wt% | Polyurethane, moisture / salt spray |
| AC-UV401 | Transparent Liquid | 1.06±0.02 | 98±0.02 wt% | UV + moisture dual cure |
Specifications shown are representative and may be updated as products develop. Contact ASH before production approval.
Quality and compliance evidence is product- and grade-specific. Review the available SGS reports and request the current technical data sheet, safety data sheet and lot documentation for your qualification.
Available in 5 L cans or 20 L drums.
Store dry and ventilated away from sunlight.
Use gentle heat if whitening occurs in humid conditions.
Wear safety glasses and gloves in handling areas.