Chemicals remove Conforme coating

In PCB-assemblage en SMT-assemblage, removing Conforme coating is often necessary for repair, rework, or inspection. The type of chemical used depends on the coating material (acrylic, silicone, polyurethane, epoxy, or parylene), as each has different resistance properties.

Common chemicals for removing Conforme coating

Solvent removers (for acrylic coatings)

Acryl Conforme coating is the easiest to remove.

Common chemicals:

• Acetone
• Isopropyl alcohol (IPA)
• Specialized acrylic removers

Features:

• Fast and effective
• Minimal damage to PCB when used properly
• Widely used in PCB-assemblage rework

Solvent blends (for polyurethane coatings)

Polyurethane coatings require stronger chemicals.

Common chemicals:

• Dedicated urethane removers
• Solvent blends (e.g., glycol ethers, esters)

Features:

• Good effectiveness with controlled exposure
• May require brushing or soaking
• Common in industrial SMT-assemblage repair

Silicone removers

Silicone Conforme coating is more resistant and harder to remove.

Common chemicals:

• Silicone stripping agents
• Swelling solvents (to soften coating before removal)

Features:

• Usually requires mechanical assistance (scraping)
• Slower process compared to acrylic

Epoxy removers

Epoxy coatings are very difficult to remove chemically.

Common chemicals:

• Strong industrial epoxy strippers
• Often combined with heat or mechanical removal

Features:

• Time-consuming and aggressive
• Risk of damaging components or PCB
• Used only when necessary in PCB-assemblage

Parylene removal chemicals

Parylene Conforme coating is highly resistant to most chemicals.

Removal methods:

• Specialized chemical stripping agents
• Plasma etching (more common than chemicals)

Features:

• Complex and expensive process
• Typically used in high-end SMT-assemblage applications

Important safety considerations

When using chemicals to remove Conforme coating:

• Work in well-ventilated areas
• Use proper PPE (gloves, goggles)
• Avoid prolonged exposure to solvents
• Test on a small area first to prevent PCB damage

Alternative removal methods

In addition to chemicals, other methods may be used:

• Mechanical removal (scraping, micro-tools)
• Thermal removal (heat softening)
• Laser or plasma removal (high precision)

These are often combined with chemical methods in PCB-assemblage rework.

Eindconclusie

Different Conforme coating materials require different removal chemicals. Acrylic coatings are the easiest to remove with common solvents, while silicone, polyurethane, epoxy, and parylene require stronger or specialized methods. In PCB-assemblage en SMT-assemblage, selecting the correct removal approach ensures safe and effective rework without damaging the PCB.

Vraag een offerte aan voor conforme coating

Zorg voor langdurige betrouwbaarheid van uw printplaten met onze coatingoplossingen. Begin hier.
Stuur ons je vereisten en krijg snel antwoord van ons engineeringteam.

✔ 24-uurs respons ✔ Engineering-ondersteuning ✔ Kleine & massaproductie

Schakel JavaScript in uw browser in om dit formulier in te vullen.

Layout WhatsAPP Preferred

Naam *

E-mail *

WhatsAPP

Aanbevolen materiaal

• Acryl (AR)
• Silicone (SR)
• Polyurethaan (UR)
• UV-uithardbaar - UV
• Ik weet het niet zeker / Heb advies nodig

Bestanden uploaden

Bestanden slepen en neerzetten,, Bestanden kiezen om te uploaden U kunt maximaal 8 bestanden uploaden.

Comprimeer alle Gerber-bestanden, boorbestanden en BOM in een enkel .ZIP- of .RAR-bestand voor snellere verwerking.

Bericht

"Please list components or areas that must NOT be coated (e.g., connectors, test points)." If you have specific coating material requirements (e.g., HumiSeal), Please indicate this in the comment box.

Stuur in

Shenzhen Tengxinjie Electronics Co, Ltd.