Products · ELPEGUARD®

Conformal Coatings

ELPEGUARD® conformal coatings are used to protect and insulate assembled PCBs so they can meet higher requirements for reliability and service life.

Protect assembled PCBs against moisture and contamination.

Choose acrylic, polyurethane, silicone, thick-film or aqua systems.

EMS supplies ELPEGUARD® coatings and on-site job works.

Share your board requirements for process selection.

Acrylic

Fast-drying acrylic coatings offering easy rework and reliable moisture protection.

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ELPEGUARD acrylic conformal coating being selectively removed from a PCB for rework, EMS Technologies

Product

Acrylic

Acrylic coatings dry fast and rework easily, which is why they are the usual starting point for general-purpose PCB protection. The film gives reliable protection against moisture and contamination, and because it dissolves readily it can be removed over a single joint for repair without disturbing the rest of the board — a real advantage on assemblies that are expected to be serviced.

  • Fast drying, so boards move through the line quickly
  • The easiest of the ELPEGUARD systems to rework and repair
  • Reliable moisture and contamination protection for general use
  • Well suited to high-volume production and serviceable assemblies
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Polyurethane

Tough polyurethane coatings with excellent chemical and abrasion resistance.

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ELPEGUARD polyurethane conformal coating applied to a printed circuit board assembly, EMS Technologies coating job work

Product

Polyurethane

Polyurethane coatings are chosen when the board will meet something harsher than damp air. The cured film resists solvents, fuels and abrasion far better than an acrylic, holding up where boards are exposed to chemicals in service or to handling that would scuff a softer coating. The trade-off is that rework is more demanding, so they suit assemblies not expected to be opened up again.

  • Strong resistance to solvents, fuels and chemical attack
  • Hard-wearing film that resists abrasion and handling damage
  • Suited to automotive, industrial and harsh-environment boards
  • Harder to rework than acrylic — best where repair is unlikely
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Silicon

Silicone coatings for high-temperature stability and flexible protection.

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ELPEGUARD silicone conformal coating protecting a populated PCB against high-temperature and humidity stress, EMS Technologies

Product

Silicon

Silicone coatings stay flexible across a very wide temperature range, which makes them the answer for boards that run hot or cycle repeatedly between extremes. Because the film moves with the assembly instead of resisting it, thermal expansion does not crack the coating or stress solder joints, and the coating keeps insulating on high-temperature and high-voltage assemblies.

  • Stable across a wide high- and low-temperature range
  • Stays flexible, so thermal cycling does not crack the film
  • Good choice for power, LED and high-voltage assemblies
  • Protects without stressing joints on boards that expand and contract
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Thick-Film Lacquers

Thick-film curing systems for demanding insulation requirements.

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ELPEGUARD thick-film UV-curing lacquer dispensed by a selective conformal coating machine, EMS Technologies

Product

Thick-Film Lacquers

Thick-film lacquers lay down a substantially heavier film than a standard conformal coating, which is what demanding insulation requirements call for. The extra build gives greater dielectric strength and a more robust barrier over conductors and component edges, and the UV-curing grades reach full cure in seconds under a UV source rather than waiting on an oven.

  • Heavier film build for demanding insulation requirements
  • Greater dielectric strength over conductors and component edges
  • UV-curing grades cure in seconds for fast line throughput
  • Applied selectively where the higher build is actually needed
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Aqua

Water-based, low-VOC coatings for environmentally conscious production.

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ELPEGUARD aqua water-based low-VOC conformal coating running on an automated coating line, EMS Technologies

Product

Aqua

Aqua coatings are water-based, so they carry a fraction of the solvent of a conventional system. That cuts VOC emissions and the handling, storage and extraction burden that comes with solvents, without giving up the protective film — the practical route for plants working to tighter environmental limits or trying to improve conditions on the shop floor.

  • Water-based chemistry with substantially lower VOC content
  • Reduced solvent handling, storage and extraction requirements
  • Better working conditions around the coating area
  • Protective performance retained for general PCB coating
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