S3DPS Glass Fibre Reinforced Engineering PBT Tough Filament 1.75mm – 1kg SpoolWhen PBT Pro Isn't Quite Tough Enough. S3DPS PBT Tough is the upgraded mechanical variant in the S3DPS PBT range built for the same demanding engineering environments as PBT Pro, but formulated to handle harder use. More impact resistance, better behaviour under continuous mechanical load, and the same glass fibre reinforcement that gives the whole PBT range its rigidity and chemical resistance. If you're printing clips, brackets, or housings that
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