A slightly odd question....
I build my own solar panels. I buy the cells (silicon wafers) from China and solder the ribbons myself.
I then place them with the active side against a glass sheet and fix them with a dab of glass silicone.
Now to the question: I need to cover the backside with some material that is somewhat fluid.
I could use silicone, but it's too viscous.
When I try to "spread" the silicone, the silicon wafers break (they are extremely fragile). The silicone is too thick.
I could use "Gummität" which becomes like a rubber film when it hardens, but it's too fluid (like water) and runs under the cells (=prevents sunlight from reaching the surface).
I would need a material that is roughly the consistency of soft cheese before it hardens.
Does anyone have any suggestions?
You can mix Husfix to the desired consistency, but I think it becomes completely rigid (inflexible) when it hardens.
Placing glass on the back is not a good idea. It becomes hot like in a greenhouse, and the cells lose efficiency with heat + condensation can form.
Crazy to build your own solar panels?
Yes, maybe. It takes about 5 hours to solder + assemble a 200w panel.
Then I have about 1000:- per hour for sitting and soldering, compared to buying a new panel in a store.....
I build my own solar panels. I buy the cells (silicon wafers) from China and solder the ribbons myself.
I then place them with the active side against a glass sheet and fix them with a dab of glass silicone.
Now to the question: I need to cover the backside with some material that is somewhat fluid.
I could use silicone, but it's too viscous.
When I try to "spread" the silicone, the silicon wafers break (they are extremely fragile). The silicone is too thick.
I could use "Gummität" which becomes like a rubber film when it hardens, but it's too fluid (like water) and runs under the cells (=prevents sunlight from reaching the surface).
I would need a material that is roughly the consistency of soft cheese before it hardens.
Does anyone have any suggestions?
You can mix Husfix to the desired consistency, but I think it becomes completely rigid (inflexible) when it hardens.
Placing glass on the back is not a good idea. It becomes hot like in a greenhouse, and the cells lose efficiency with heat + condensation can form.
Crazy to build your own solar panels?
Yes, maybe. It takes about 5 hours to solder + assemble a 200w panel.
Then I have about 1000:- per hour for sitting and soldering, compared to buying a new panel in a store.....
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