I'm not aware of any issues with using dissolved ABS as a bed adhesive besides the damage to PEI. It might possibly be too strong, but with the way ABS shrinks when it cools that's not usually an issue unless you're printing on glass (which will crack). If it's still stuck when it's completely cool, that's what a bed scraper is for. ABS juice can impact the bottom texture of the print, but my prints still got shiny bottoms when I was printing on Kapton with ABS juice atop an aluminum heated bed.
Atomic Filament at one point sold ABS filament that was explicitly manufactured from MG94. I haven't been able to find anyone that will sell to a consumer that specifies a specific resin since then. Airwolf has had a listing on their website for years, but since it's 2.85mm filament, I've never looked into it. It's possible that if you contact Atomic Filament they might be able to tell you what they're currently using. Smaller operations like Atomic Filament are probably the way to go if you care about product consistency.
Atomic Filament at one point sold ABS filament that was explicitly manufactured from MG94. I haven't been able to find anyone that will sell to a consumer that specifies a specific resin since then. Airwolf has had a listing on their website for years, but since it's 2.85mm filament, I've never looked into it. It's possible that if you contact Atomic Filament they might be able to tell you what they're currently using. Smaller operations like Atomic Filament are probably the way to go if you care about product consistency.