Borate only blown cellulose
Does anyone know of a good quality borate-only cellulose product available in the Seattle, WA area? The contractor gave me an MSDS for a product called Isolite Cellulose (made in Spokane, WA) which uses sodium polyborate. How does this compare to boric acid, which I see some other products using? Are all brands of borate-only blown cellulose of similar quality? This is for attic insulation R-49. Thanks!
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