{"product_id":"tough-pro-pla-castle-gray-1-75mm","title":"Tough Pro PLA+, Castle Gray, 1.75mm","description":"\u003cdiv\u003e\n\u003cp\u003eTough Pro PLA+ in Castle Gray, 1.75mm is the filament you reach for when your project demands more than standard PLA+ can deliver. Crafted in the United States from genuine NatureWorks 3D870 Ingeo PLA, this filament blends the ease of PLA printing with ABS-like toughness and elevated heat resistance, making it a reliable workhorse for functional parts, fixtures, and prototypes that see real-world use.\u003c\/p\u003e \u003ch2\u003eWhat sets Tough Pro PLA+ apart\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e8.8x the impact toughness of standard PLA+—so your prints resist drops, impacts, and handling without cracking.\u003c\/li\u003e \u003cli\u003eHeat resistance that rivals ABS—delivered even before any post-processing, enabling parts to perform in warmer environments.\u003c\/li\u003e \u003cli\u003eAnneal-ready performance—designed to gain even more heat resistance and toughness when after-printed, expanding your design options.\u003c\/li\u003e \u003cli\u003eSustainably sourced with an incredible eco-profile—manufactured in the US from NatureWorks PLA, a bio-based material option with strong environmental credentials.\u003c\/li\u003e \u003cli\u003eDirect, predictable results—material engineering completed to a third-generation level, aimed at industrial-like performance with the printability you expect from PLA+.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePrinting guidance and practical usage\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRecommended printing temperature: 220–250°C.\u003c\/li\u003e \u003cli\u003eRecommended bed temperature: 0–60°C; compatible with PEI, heated\/bare glass, BuildTak, WhamBam, and other common surfaces.\u003c\/li\u003e \u003cli\u003eRecommended print speed: 60–250 mm\/s for robust, consistent layers without sacrificing surface finish.\u003c\/li\u003e \u003cli\u003eDiameter tolerance: ±0.02 mm, supported by a multi-axis laser measurement system to monitor diameter and ovality in real time during production for reliable extrusion.\u003c\/li\u003e \u003cli\u003eColor option: Castle Gray adds a professional, low-gloss finish suitable for functional parts and assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eAnnealing and post-processing\u003c\/h2\u003e\n\u003cp\u003eYou can anneal your Tough Pro PLA+ prints to maximize heat resistance and impact toughness. While annealing can yield the strongest parts, it also causes some shrinkage (about 1–2%), so designs should be constrained to reduce warping. If annealing is not practical, you’ll still benefit from noticeably higher heat resistance and toughness compared with standard PLA+.\u003c\/p\u003e \u003ch2\u003eQuality, packaging, and availability\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePackaging: A full 1 kg (2.2 lbs) spool arrives vacuum-sealed for moisture control and consistent performance.\u003c\/li\u003e \u003cli\u003eSpool: AMS-compatible, designed for easy handling and reliable feeding in a range of hobbyist and professional setups.\u003c\/li\u003e \u003cli\u003eFilament quality: All 3D-Fuel filament is produced in United States facilities with strict process controls to ensure consistent diameter and material performance.\u003c\/li\u003e \u003cli\u003eFinal note: This product is part of the 3D-Fuel line, designed for users who demand dependable, repeatable results with every spool.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDownloads and resources: SDS and TDS are available to help you understand safety, handling, and technical specifications for Tough Pro PLA+. Learn more about 3D-Fuel filament quality and how it supports your printing goals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"3D-Fuel","offers":[{"title":"Tough Pro PLA+ \/ 1kg 1.75mm Spool \/ Castle Gray","offer_id":45321416671311,"sku":"A3522","price":32.95,"currency_code":"USD","in_stock":true},{"title":"Tough Pro PLA+ \/ 4kg 1.75mm Spool \/ Castle Gray","offer_id":45321416704079,"sku":"A3722","price":119.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/2406\/7407\/files\/pro-pla-castle-gray-175mm-405588.jpg?v=1779973375","url":"https:\/\/hobbytechsupply.com\/products\/tough-pro-pla-castle-gray-1-75mm","provider":"Hobby Tech Supply","version":"1.0","type":"link"}