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- ABchimie AVR80 BA Non-Toxic Acrylic Coating
ABchimie AVR80 BA Non-Toxic Acrylic Coating
- Fluoresces under UV light
- Excellent adhesion
- Halogen‑free formulation
Product Description
ABchimie AVR80 BA is a non‑toxic, flexible, transparent acrylic conformal coating designed to deliver high‑performance protection for electronic circuitry in demanding environments. This environmentally friendly formulation provides exceptional resistance to moisture, chemicals, and thermal stress. AVR80 BA can be completely removed using ABchimie SND or ABclean (100% ozone‑friendly), ensuring easy rework and maintenance.
A low‑viscosity, ready‑to‑use version (AVR80 BA DS) is also available for applications requiring excellent flow and penetration.
Product Key Features
- Excellent adhesion under all climatic and environmental conditions
- Resistant to mould and biological growth
- Wide operating temperature range: –65°C to +150°C
- Halogen‑free formulation
Applications
- Protection of printed circuit boards (PCBs) in environments requiring non‑toxic materials
Qualifications
- UL94 V‑0 approval (File E308681)
- Meets IPC‑CC‑830 and MIL‑I‑46058C conformal coating standards
- Certified to NF EN 61086‑2, NF EN 45545, NF EN 16101, and NF EN 16102
Technical Specifications
| General Properties | |
| Appearance Appearance Appearance at room temperature. | Pale liquid |
| 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. | 0.93 |
| 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. | 1500 V |
| Dielectric Strength Dielectric Strength Dielectric strength is measured in kV per mm and is calculated by the Breakdown voltage divided by the thickness of the tested material. Those two properties go hand in hand and while Breakdown voltage is always thickness dependent, dielectric strength is a general material property. As an example, the dielectric strength of Polyimide is 236 kV/mm. If we place 1mm of Polyimide between two electrodes, it will act as an insulator until the voltage between the electrodes reaches 236 kV. At this point it will start acting as a good conductor, causing sparks, potential punctures and current flow. | 50 kV/mm |
| Dissipation Factor @ 25°C /1000 kHz | 0.01 |
| Thermal Properties | |
| Coefficient of Thermal Expansion (CTE), α1 Coefficient of Thermal Expansion (CTE), α1 CTE α1 (alpha 1) is the slope of the Coefficient of thermal expansion in a temperature range below the Glass transition temperature (Tg). It explains how much a material will expand until it reaches Tg. | 130 ppm/°C |
| Coefficient of Thermal Expansion (CTE), α2 Coefficient of Thermal Expansion (CTE), α2 CTE α2 (alpha 2) is the slope of the Coefficient of thermal expansion in a temperature range above the Glass transition temperature (Tg). It explains the extent to which a material will expand after it passes Tg. | 280 ppm/°C |
| 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. | 29 °C |
| Operating Temperature | -65 - +150 °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 | V-0 |
Additional Information
Frequently Asked Questions About ABchimie® AVR80 BA
What makes AVR80 BA "Non-Toxic"?
AVR80 BA is formulated without hazardous solvents like Toluene or Xylene. This makes it a safer choice for operators while maintaining compliance with UL94V0 and MIL-I-46058C. It provides the same high-level protection as standard acrylics without the associated toxicity.
ABchimie® AVR80 BA: Safe, High-Spec Protection
ABchimie® AVR80 BA is a flexible, Halogen-free, and non-toxic transparent acrylic coating. It is specifically engineered to meet the highest resistance requirements (including NF EN 45545 for rail safety) while ensuring a safer manufacturing environment through its isocyanate-free formulation.
Performance Features
Maintains excellent adhesion and dielectric properties under extreme climatic conditions, with an operating range from -65°C to +150°C.
Can be safely soldered through for repairs or fully removed using ABchimie SND or ABclean. It is also resistant to mould growth.
Product Selector Guide
| Property | AVR80 BA | AVR80 BA HV | AVR80 BA DS |
|---|---|---|---|
| Form | Non-Toxic Liquid | High Viscosity Gel | Low Viscosity (Ready to Use) |
| Drying | 10-20 min (Touch) | <30 min (Touch) | Very Fast drying |
| Method | Spray/Dip/Brush | Dispense/Brush | Automated Spray/Dip |
Instructions for Use
AVR80 BA is suitable for spraying, dipping, or brushing. Standard application typically targets a dry film thickness of 25 microns. Optimal results are achieved at workshop temperatures above 16°C with relative humidity below 75%.
Process Recommendations
- Moisture Control: PCBs are composite materials that absorb moisture. To ensure full protection, remove moisture via an oven bake (3-4 hours at 60°C) before coating.
- UV Inspection: The integrated UV tracer glows under blacklight. The brighter the reflection, the thicker the coating layer, allowing for simple and effective quality control.
- Homogenization: Always mix before use. If you observe a "white veil" or cloudiness, simply stir the varnish to restore a homogeneous consistency.
- Immediate Coating: Boards can be coated immediately after soldering. If boards have been stored for over 48 hours, a drying cycle is required.
