CONFORMAL COATING

ABchimie’s conformal coating are specially developed to ensure high protection to PCBAs from their environment. They don’t only improve and extend the working life but also can provide reliability and performance. They protect PCBA against harsh environment such as salt spray, humidity, temperature, solvent, dust …with, in general, a thin layer (25 to 50 microns). These environmental conditions can cause damage as corrosion, current leakage and failure.

The complete range proposes different base of raw materials:

  • Acrylic
  • Silicone
  • Urethane
  • Aqueous urethane
  • UV curing material (Acrylate urethane)
  • None VOC silicone product
  • 100% content

APPLICATION FIELDS :

Domestic Electrical
Medical
Automotive
Military
Aerospace
Industry

WHY USE ABCHIMIE CONFORMAL COATING?

ABchimie not only provides high quality products but also ready to use products. You can request the specific viscosity for your equipment. Our technical support team will assist you upon your request.  Providing precise solutions is one of our commitments to earning your trust. 

HEALTH AND SAFETY

ABchimie is very involved in these subjects, for this reason we are always looking for a “green” alternative.  

AVR80 BA is the green alternative of common acrylic conformal coating, this version is non toxic.  The specified solvent used in this formulation is designed to protect people. 

This reference is now very well known and it is used in large quantity in automotive, military and industrial applications. Regarding the new generation of conformal coating, we offer ABchimie526 UV and ABchimie746 E UV which contains NO VOC. They are available to be used in UV mercury oven and with  LED oven 395nm.

APPLICATION METHODS:

1. SPRAYING Usual method. Very goods results on plane surface.

2. SPRAY GUN – highly economic, hand spray using a spray or aerosol can. All coatings can be applied in this way.

3. SELECTIVE DEPOSIT Dispensing equipment: ASYMTEK, PVA, USI, DIMA . High performance level for mass production, reliability of deposit. All coating types can be used if the correct dispense head is selected.

4. DIPPING – To ensure presence of conformal coating even under components. small productions. 

HOW TO CHOOSE A CONFORMAL COATING?

You will have to consider the curing method determined by the coating selected, air dry, oven dry or UV light cure. The liquid coating should thoroughly wet all surfaces and cure without leaving any defect on surface. Epoxies are especially sensitive to surface defects, it can also shrink while setting and may lose adhesion as a result In addition; It is very important to define well your need:

  • Norms?
  • PCB environment?
  • Reparable?
  • Electric requirement?
  • How you will apply it?

Our application engineer can help you in this choice, don’t hesitate  in contacting us. To submit applications, click here.

n.a.: not applicable // Sample tests IPC B-25

1: Mil-I-46058C

2 : -25°C/+25°C, 100 cycles, plateau 15mn, 50C/mn

3 : -25°C/+50°C, 15mn/15mn, 50 cycles

4 : 20°C/80°C – 90% RH

5 : 10°C/80°C, 95% RH +-4%, 360 days

6 : Mil-I-46058C