Page Comparison

Silicone Resin (SR)

Confromational Coating using a Silicon Resin Base

• Higher working temperature (-40C to 200C) 

• High chemical and general resistance protection

• Challenging removal (need special solvents, long soaking periods and even brushes)

• Expensive

$37CAD - https://uk.farnell.com/electrolube/fsc400/coating-silicone-flexible/dp/1616570 ($37)

Acrylic Resin (AR)

Confromational Coating using a Silicon Resin Base

• Most Affordable

• High Dielectric Strength 

• Very easy to remove (using a variety of solvents)

  • Good for reworking and debugging

• Simple drying process (<20 minutes)

• Working temperature range: -40C to 60C (short term protection to 100C)

• Not the best in class at protection but still sufficient

https://www.mouser.ca/ProductDetail/MG-Chemicals/844AR-340G?qs=T3oQrply3y9urZcHv3hIkA%3D%3D$16CAD -

$28 but free shipping to Canada https://ukwww.farnellamazon.com/electrolube/apl400h/coating-conformal-acrylic/dp/3026838?st=Conformal%20Coatingca/MG-Chemicals-Acrylic-Lacquer-Conformal/dp/B008OA7178/

Potting Materials

Potting uses a "pot" in the form of a case, shell or similar enclosure, to completely cover the board, protecting it from the surrounding environment - a tough form-fitted shell around the board.

• potting cases are secure

• offer dielectric protection

• safeguard the PCB from the polluting effects of acids, bases, corrosion, salt and most solvents

• Very challenging to remove for reworking/debugging

• No ventilation

Due to these downsides of potting, it would not be feasible for our purposes.