German industrial adhesive Delo Industrie Klebstoffe GmbH & Co KGaA says it now offers adhesives for thin-film solar cells, made out of epoxy resins or acrylates claiming these provide an effective barrier to the active layers against humidity.
The new product DELO KATIOBOND LP655 is made up of raw materials that allow for a low water vapor transmission rate of 6 g per mm/m² in 24 h, according to Delo. It says these have been tested at a temperature of 60°C and a relative humidity of 90%, preventing 'premature degradation' of the cells and thus a longer lifeline.
Delo's expanded range also features high peel resistance on PET.
"The transparent product cures in seconds under UV light and has been optimized for slot-die coating. Delo also offers various products based on epoxy resins and acrylates that can be used for roll-to-roll processes," it claims.
Offering its adhesives for various other industries as automotive, consumer electronics and semiconductor, Delo is eyeing a growing market in thin-film solar cells since these are well suited for practically any surface as building façades, lightweight roofs and even charging columns.
Earlier this month, Dow introduced its DOWSIL PV product line with new sealants and adhesive solutions for the solar PV industry and for building integrated PV (BIPV) installation materials (see New Silicone Sealant Products For PV).
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