Techspray FAQ: How To Remove Conformal Coating for Rework?
Techspray offers the TraceTech Conformal Coating Remover Pen that allows you to remove a tight area of coating around a repair area without affecting the rest of the PCB. You first saturate the tip by tapping it lightly on a surface, which opens the valve and releases solvent. Holding the tip down may oversaturate it, which could lead to solvent flowing into unintended areas.
Coating can also be removed completely from a circuit board by soaking it in Techspray’s Conformal Coating Remover or Conformal Coating Remover XT, and scrubbing as necessary. Acrylic coating will come off easily, while silicone and especially urethane will take longer soak times and alot more scrubbing.
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https://www.techspray.com/conformal-c...
PROTECT ELECTRONICS FROM EXTREME ENVIRONMENTS
Techspray offers SR, AR and UR conformal coating formulas for a wide variety engineering requirements including thermal, moisture & static resistance. All coatings are IPC-CC-830B and UL94 V-0 qualified.
Techspray offers a variety of conformal coating formulas for differing field or engineering requirements and is IPC CC 830B and UL94-0 Qualified or rated. Specifications generally depend on the type of protection needed: e.g., thermal, moisture, or static resistance.
Coatings contain Opti/Scan (except LED Coating) to allow quality control inspection of coverage and evenness of the coating on a PCB. A coated board can be passed under a standard, low-cost UV (short-wave black) light to fluoresce the coated areas. The brighter the glow, the thicker the coating.
Application methods:
Dip – High volume method to fully coat boards. Thickness of the final coating is controlled by viscosity and withdrawal speed from the pot.
Conformal Coating Spray – Computer controlled selective spray systems eliminate the need for masking. Higher viscosity is generally needed (70-200 cps) to create precise edge definition and prevent splattering.
Manual Application – Aerosol and brushing are generally used for small production runs, rework and repair. The aerosol needs to be compatible with the original coating if it’s rework.
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https://www.techspray.com
Techspray is a leading manufacturer of chemical products and soldering tools for the electronics industry. Techspray formulates, blends, and packages a wide variety of chemicals and assorted support products for the electronics industry, aerospace, heavy industry, and plant and equipment maintenance including degreasers, contact cleaners, flux removers, dusters, conformal coating, solder mask, water-based cleaners, desoldering wick, soldering tips, and the popular Plato shear cutters. More information can be found at techspray.com.