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Conformal Coating Strippers

MG Chemicals offers conformal coating strippers that are helpful when rework or repair is necessary. These strippers are very effective at removing many different types of coatings, including acrylics, alkyds, polyurethanes, silicones, and some epoxies. Exposure time for conformal coating removal will depend largely on the inherent chemical resistance of the coating and will vary with different chemistries. While most acrylics will require no more than 30 seconds, some epoxies may need several hours for successful removal.

Features and Benefits

  • Effective against many coating types including PUs and epoxies
  • Available in liquid and gel formats
  • Biodegradable
  • Contains no HAPs
  • Contains no SVHCs 

Applications

  • Spot removal of coating
  • Full removal of coating for rework
  • Effective against some adhesives

8309 – Conformal Coating Remover – Liquid stripper effective for coating removal of large surface

8309-P – Conformal Coating Remover Pen – Liquid stripper in pen format effective for spot conformal coating removal

8310A – Conformal Coating Remover Gel – Stripper gel effective for spot removal of coating or some adhesives


Conformal Coating Stripper FAQs

How do I remove conformal coatings from PCBs?

It depends on the coating’s chemistry. For thermoplastic materials such as acrylics or silicone coatings, the cured film can easily be removed with common solvents like acetone or n-butyl acetate. For more durable thermoset coatings such as polyurethane, epoxy and UV cure, use a more aggressive stripper like MG’s 8309 liquid or 8310A gel. The table below summarizes most effective methods for removing coatings of different chemistries.

Material                                       Method
Acrylics Easily removed using common solvents like Ketones (e.g., acetone) or esters.
Polyurethanes Can be removed using 8309 or 8310A stripper. Takes 5-10 minutes.
Silicones Easily removed using common solvents like acetone or esters.
Epoxy Remove using 8309 or 8310A stripper. May take up to 2 hours.
UV Cure Remove using 8309 or 8310A stripper. May take several hours.
Parylene Must be removed with micro-abrasion. Very difficult.
Ultra-Thin Easily removed using common solvents like Ketones
Styrenated Block co-polymer Easily removed using common solvents like Ketones