EVA Sheet encapsulant question

System
System Posts: 2,511 admin
in Off Grid Solar & Battery Systems #1
Can you just use the EVA Sheet encapsulant with the solar glass only and sandwich the cells between the one sheet of EVA and the glass?
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  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    #2
    Re: EVA Sheet encapsulant question

    any solder bumps, tab wire or bugs that vary the thickness, will instantly pulverize the cells when the vacuum is applied.
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  • SolarBuff
    SolarBuff Registered Users Posts: 2
    #3
    Re: EVA Sheet encapsulant question

    Hey Fabieville
    I tried exactly that using a heat gun to melt the EVA and sandwich the cells, using a vacuum pump to suck the cells to the glass. Looked great when I finished, but after several weeks in the sun the EVA separated from the glass. EVA doesn't adhere well enough to glass.

    Solar Buff
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  • System2
    System2 Posts: 6,290 admin
    #4
    Re: EVA Sheet encapsulant question

    The encapsulant that name sylgard 184 that you pour on the cells. Do you think that the container of approx. 500ml would be enough to cover (36) 6"X6" Cells?
    Here is the link for the sylgard 184:

    http://cgi.ebay.com/Sylgard-184-Solar-Cell-Panel-SILICONE-Encapsulation-Kit-/130461195070?pt=LH_DefaultDomain_0&hash=item1e6017db3e
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