Well, the answer is nothing! Our PLA and ABS 3D printer filaments are free from any hazardous materials or toxic chemicals that can put our customers at risk when printing with these materials.
Our original series ABS and PLA 3D printing materials have recently undergone an independent test conducted by SGS, (the world's leading inspection, verification, testing and certification company, recognized as the global benchmark for quality and integrity.) showing that the materials are free from PBBs (Polybrominated biphenyl) and PBDEs (Polybrominated diphenyl ethers) which are controlled substances and toxic chemicals with serious health hazards.
Just a bit of extra peace of mind when printing with our ABS and PLA :)