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--- rustpreventionandremoval:rust_prevention_and_removal [2014/01/09 06:15] – [How did it happen] eidis
+++ rustpreventionandremoval:rust_prevention_and_removal [2019/08/27 20:45] (current) – external edit 127.0.0.1
@@ Line 5: / Line 5: @@
 ===== How did it happen =====
- First of all the good news.
+ Warm air can hold more moisture than cold air. That is why humidity is much lower during winter (~30% - ~45%) and peaks during hot summer days (~45% - ~80%). Condensation occurs when air cools down and releases moisture, usually at night. Moisture tends to attach to the most coldest surfaces which are nearby. Unfortunately for us, it is metal.
-  * PCB's and their chips are very resistant to corrosion.
+  * First of all the good news. PCB's and their chips are very resistant to corrosion.
   * Most of the times rust attacks steel and aluminum metal shieldings as well as various connectors which were directly or indirectly exposed to dirt and moisture.
-  *  Rust does not form if ambient relative humidity is below 40%. The perfect level for storing is 35% - 40%. You can monitor it with hygrometer which is a must have and can be cheaply purchased on eBay.
+  * Rust does not form if ambient relative humidity is below 40%.
+  * Recommended ambient relative humidity for semiconductors is 30 - 50%
+  * You can monitor it with hygrometer which is a must have and can be cheaply purchased on eBay.
   * Don't go lower than 30% because that can lead to electrostatic build up.
-  * Recommended ambient relative humidity for semiconductors is 30 - 50%
- Warm air can hold more moisture than cold air. That is why humidity is much lower during winter (~30% - ~45%) and peaks during hot summer days (~45% - ~80%). Condensation occurs when air cools down and releases moisture, usually at night. Moisture tends to attach to the most coldest surfaces which are nearby. Unfortunately for us, it is metal.
 ===== Early symptoms =====
@@ Line 117: / Line 116: @@
 ===== Nail varnish =====
-Use it to cover exposed copper if solder mask gets damaged and to seal off areas which had lots of rust to seal off air and prevent oxidation.
+Use it to cover exposed copper if solder mask gets damaged and to seal off areas which had lots of rust. This will prevent oxidation.
 ===== Baking soda =====
@@ Line 151: / Line 150: @@
 |{{:rustpreventionandremoval:sanding_disc.jpg?150|}}|
-|  Sanding discs  |
+|  Sanding Discs  |
   * 80 grit
@@ Line 162: / Line 161: @@
 |{{:rustpreventionandremoval:rubber_polishing_wheels.jpg?150|}}|
-|  Rubber Polshng Wheels  |
+|  Rubber Polishing Wheels  |
 |Black  |  120 grit|
@@ Line 190: / Line 189: @@
 Work in progress.
-====== Preserving ======
+====== Protecting ======
 Work in progress.
@@ Line 203: / Line 202: @@
 Keep the scene alive !
 Eidis