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- ABchimie AVR80 Removable Acrylic Coating
ABchimie AVR80 Removable Acrylic Coating
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- Halogen-free
- Excellent adhesion
- Fluoresces under UV light
Product Description
ABchimie AVR80 is a flexible, transparent acrylic conformal coating formulated to deliver high‑performance protection for electronic circuitry operating in demanding environments. Engineered for excellent resistance to moisture, chemicals, and thermal stress, AVR80 ensures long‑term reliability of sensitive electronic assemblies. It is fully removable using ABchimie SND or ABclean (100% ozone‑friendly solutions)
Product Key Features
- Excellent adhesion across a wide range of climatic conditions
- Wide operating temperature range: –65°C to +150°C
- Resistant to mould and biological growth
- Halogen‑free formulation
Applications
- Protection of printed circuit boards (PCBs) in harsh or variable environmental conditions
Qualifications
- UL94 V‑0 approval (File E308681)
- Meets IPC‑CC‑830 and MIL‑I‑46058C requirements
- 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
Which standards does ABchimie® AVR80 meet?
AVR80 is formulated for the highest resistance requirements. It is UL94V0 approved (File E308681) and meets MIL-I-46058C and IPC-CC-830. Additionally, it holds NF EN 61086-2 and fire/smoke approvals (NF EN 45545, 16101, 16102), making it suitable for railway and aerospace applications.
ABchimie® AVR80 High-Spec Acrylic Coating
ABchimie® AVR80 is a flexible, transparent, and Halogen-free acrylic coating. Engineered for elite protection of electronic circuitry, it offers excellent adhesion under all climatic conditions and remains stable across a wide temperature range of -65°C to +150°C.
Performance Features
Safety & Compliance
Certified UL94V0 and NF EN 45545. Formulated without isocyanates, ensuring a safer work environment during application and rework.
Climatic & Bio-Resistance
Specifically designed to resist mould growth and maintain superior dielectric properties in high-humidity or tropical climates.
Product Selector Guide
| Property | AVR80 (Standard) | AVR80 BA (Non-Toxic) | AVR80R (High Solid) |
|---|---|---|---|
| Key Feature | Universal High-Spec | Toluene/Xylene Free | 60% Solids / Repairable |
| Approvals | UL94V0, MIL, IPC, NF EN | UL94V0, IPC-CC-830 | UL94V0, MIL-I-46058C |
| Solvent Removal | ABchimie SND / ABclean (Ozone Friendly) | ||
Instructions for Use
AVR80 can be applied through spraying, dipping, or brushing. For volume production, automated spraying or dipping is recommended to ensure a consistent 25-micron dry film thickness.
Optimal Application Protocol
- Pre-Cleaning: PCBAs should be clean and dry. A pre-bake in an oven (3-4 hours at 60°C) is recommended to remove absorbed moisture from composite substrates.
- Rework: If rework is required, you can safely solder through the coating. The absence of isocyanates prevents the release of highly toxic fumes during the heating process.
- Homogenization: If a "white veil" or cloudiness is observed in the liquid, stir/mix the varnish to restore a homogeneous state before application.
- UV Inspection: Use blacklight (UV light) to inspect the board; the coating's fluorescence makes it easy to spot uncoated areas or uneven applications.
