We already have some of the refill spools in our range, such as this one: Purefil PLA Filament You can search for "Purefil Green Refill" in the search bar. As the products are still new, they are listed further down (maybe click on "show more").
I have no problems with it at all. I print normally with 215 and 50 °C.
If the adhesion is poor, the print gap of the first layer is usually badly adjusted. Check that this is correct, or make the distance a little smaller.
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