2.3.3 Coating Removal, Peeling Method
| Printed Board Type: R/F/W/C | Skill Level: Advanced | Conformance Level: High | Rev.: E | Rev. Date: Jul 7, 2000 |
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Outline
This peeling removal method for coating can be used only under special circumstances. Normally this method is used to
remove RTV silicone or other thick rubbery-like coating materials.
The coating material is removed using a dull knife or otherwise
dull blade to slit the coating material and to peel it off the
printed board or printed board assembly.
To determine the appropriate coating removal procedure the coating must first be identified. Refer to procedure number 2.3.1. |
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Coating Removal Required
At Outlined Area |
Note
This method is limited to coatings that are rubbery in nature
to allow the coating material to be slit into small sections
and peeled off the printed board assembly.
Tools and Materials
Heated Blade or Thermal Parting Tool
Knife
Wood Sticks
Procedure
Figure 1: Slit and peel off coating
using a knife or heated
blade.
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| 1. |
Slit and peel off the coating material with
a dull knife or heated dull blade. (See Figure
1).
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| 2. |
Repeat as needed until the required material
is removed.
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Figure 2: Removal complete. |
| Evaluation |
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| 1. |
Visual examination or UV light may be used to
verify complete removal of coating |
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