Conformal coating
A thin protective film that follows the contours of the circuit.
Moisture barrier
Thin & light
Applications & repair
Prevents electrochemical corrosion and the occurrence of short circuits caused by condensation and dust.
Application of a controlled layer a few tens of microns thick, preserving the mass and overall volume of the board.
Suitable for assemblies requiring occasional rework or quality checks under ultraviolet light.
Encapsulation, potting and coating
Complete three-dimensional insulation to protect components against major environmental aggressions.
Mechanical protection
Insulation & dissipation
Selection criteria
Encapsulation with epoxy or polyurethane polymer resin absorbs physical shocks and blocks the infiltration of aggressive fluids.
It ensures consistent dielectric strength while helping to dissipate heat from high-power components (W/m°K).
Choice depends on viscosity, Shore hardness, coefficient of expansion, and the targeted temperature ranges.
Resin or Varnish: Which Approach?
Reliability of your electronic assembly directly depends on the chosen coating or varnishing process.
Resin option
Coating option
Recommended for extreme mechanical stresses, immersion, or full encapsulation of critical components.
Recommended for protection against light splashes, environmental dirt, and temperature variations.
• Thickness: significant (several millimeters to cm)
• Shock resistance: excellent
• Repairability: very delicate to complex
• Thickness: 25 to 100 micron film
• Shock resistance: mechanical protection
• Repairabilité : Local repair possible
Cas
Solutions adapted to the operational requirements of constrained industrial sectors.
Industrials systems
Embedded electronics
Sensors
Equipements exposed to oils, dusty environments, continious vibrations in workshop.
Enclosed pcba submit to sudden thermal changes and regular mechanical stresses.
Devices installed in salty, humid environments or directly exposed to seasonal weather.
• Technical informations
FAQ
How evaluate what we need protection from?
Can both methods be combined?
A precise analysis of stress factors (temperature, chemicals, impact) guides the initial approach.
Some assemblies use a general coating combined with localized overmolding on sensitive components.
Study your protection project
Share your usage requirements with DOUCHY Consulting R&D to qualify possible option for yur project.
We listen to you, we understand you, we advise you