{"product_id":"3-x-1kg-glow-in-the-dark-pla-filament-1","title":"Glow in the Dark PLA+ Filament 3-Pack","description":"\u003ch2\u003e3kg at $24.68\/kg | 30% Off | UV-Reactive Phosphorescent, Free USA Shipping\u003c\/h2\u003e\n\u003cp\u003eThree kilograms of Glow in the Dark PLA+. Choose from our available glow color variants. Vacuum-sealed per spool. Free shipping across the USA. At $24.68\/kg — 30% off individual pricing — this is the smallest glow filament bulk pack we offer: the lowest-commitment way to stock multiple phosphorescent colors at bulk pricing before deciding whether to scale to the 16-pack for full production volume.\u003c\/p\u003e\n\u003cp\u003eEvery print made with this filament charges in UV light or sunlight and glows in the dark — no electronics, no batteries, just phosphorescent chemistry built into the PLA+ base. Three kilograms covers multiple glow projects or a small production run of novelty items, cosplay props, or safety markers at meaningful savings over individual spool pricing.\u003c\/p\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eThis filament requires a hardened steel nozzle.\u003c\/strong\u003e The phosphorescent particles that create the glow effect are extremely hard — they wear through a standard brass nozzle rapidly with regular use. At 3kg of volume, a hardened steel nozzle is the first purchase to make before this pack arrives.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eWhich Glow Pack Is Right for You?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003cth\u003ePrice\/kg\u003c\/th\u003e\n\u003cth\u003eDiscount\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThis pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e$24.68\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e30% off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFirst glow bulk order. Testing glow variants before scaling. Multiple small projects or one medium run. Lowest inventory risk.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16-Pack Glow PLA+\u003c\/td\u003e\n\u003ctd\u003e16kg\u003c\/td\u003e\n\u003ctd\u003e$22.49\u003c\/td\u003e\n\u003ctd\u003e41% off\u003c\/td\u003e\n\u003ctd\u003eEstablished glow production. Cosplay vendors, novelty product sellers, event producers at full scale. Best price-per-kg.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eHow Glow in the Dark Filament Works — Plain Language\u003c\/h3\u003e\n\u003cp\u003eThink of those glow star stickers you stick on bedroom ceilings. You leave the light on, the sticker absorbs energy, you turn the light off — it glows. That's phosphorescence, and it's exactly what's happening inside this filament.\u003c\/p\u003e\n\u003cp\u003eThe active ingredient is \u003cstrong\u003estrontium aluminate\u003c\/strong\u003e — a crystalline powder mixed into the PLA+ base. When light hits your finished print, those crystals absorb the photons and store the energy. In the dark, they release it slowly as visible light. No batteries. No electronics. Just chemistry.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV flashlight or blacklight charges fastest and brightest\u003c\/strong\u003e — 10–15 minutes produces a significantly more intense glow than indoor lighting. The single best upgrade for glow product displays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect sunlight\u003c\/strong\u003e works excellently for charging. 10–15 minutes outdoor exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor LED or fluorescent light\u003c\/strong\u003e works but takes longer and produces a less intense result.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlow is always brightest right after charging\u003c\/strong\u003e and fades gradually — that's normal phosphorescence physics, not a defect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen and blue variants glow most intensely\u003c\/strong\u003e — strontium aluminate's natural emission peaks in the green spectrum. Green and blue consistently outperform red and violet for brightness and glow duration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e⚠️ Critical Hardware Requirements\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRequirement\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardened steel nozzle — required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStrontium aluminate particles are extremely hard. They grind the inside of a brass nozzle like sandpaper. At 3kg, a brass nozzle will degrade noticeably. Hardened steel, ruby, or tungsten carbide handles abrasive filaments without wear.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNozzle diameter: 0.4mm min, 0.5–0.6mm recommended\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWider nozzle = less abrasion per mm of filament + more glow particles per layer = brighter, longer glow. For display items, 0.6mm is the production sweet spot.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo sharp bends in filament path\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStrontium aluminate makes glow filament more brittle than standard PLA+. Tight Bowden curves can cause snapping mid-print. Keep the filament path as straight as possible.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAMS \/ multi-material systems: test first\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlow filament's stiffness and abrasiveness can cause feeding issues in systems with circuitous internal paths. Use an external spool holder with manual feed as the reliable fallback.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003ePack Contents \u0026amp; Value Breakdown\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 × 1kg spools (3kg total \/ 6.6 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlow in the Dark PLA+ (strontium aluminate phosphorescent pigment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilament diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.75mm ±0.02mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor activation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~31°C \/ 88°F — charges under UV, sunlight, or indoor light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice per kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$24.68 (30% off individual spool pricing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackaging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVacuum-sealed with desiccant — each spool individually sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree across the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003ePrint Settings for Glow in the Dark PLA+\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSetting\u003c\/th\u003e\n\u003cth\u003eRecommended Range\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNozzle temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e210–230°C\u003c\/td\u003e\n\u003ctd\u003eStart at 215°C. Using hardened steel? Raise 5°C — steel conducts heat less efficiently than brass and needs slightly more heat for clean flow.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBed temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55–70°C\u003c\/td\u003e\n\u003ctd\u003e60°C on PEI or blue painter's tape on glass. Never exceed 70°C — high bed temps can degrade the phosphorescent pigment.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot required\u003c\/td\u003e\n\u003ctd\u003eOpen-frame printers work fine. PLA+ base means no warping.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart cooling fan\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% after first 2 layers\u003c\/td\u003e\n\u003ctd\u003eFull cooling keeps layer lines sharp — which directly improves glow uniformity on the finished surface.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrint speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40–60mm\/s\u003c\/td\u003e\n\u003ctd\u003eSlightly slower than standard PLA+ — lower speed gives phosphorescent particles more time to settle evenly in each layer, producing a more uniform glow.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFirst layer speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15–25mm\/s\u003c\/td\u003e\n\u003ctd\u003eAlways slow for reliable bed adhesion.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNozzle diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.4mm minimum \/ 0.5–0.6mm recommended\u003c\/td\u003e\n\u003ctd\u003eWider nozzle = less abrasion + more glow particles per layer = brighter, longer-lasting glow effect.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLayer height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2–0.3mm\u003c\/td\u003e\n\u003ctd\u003eThicker layers embed more phosphorescent material = brighter glow. For display items, 0.3mm is optimal.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWall count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3–4 walls minimum\u003c\/td\u003e\n\u003ctd\u003eMore walls = more glowing material = longer glow duration. For maximum glow time, go 4+ walls.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRetraction — Direct Drive\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5–2mm at 40mm\/s\u003c\/td\u003e\n\u003ctd\u003eDon't over-retract — glow filament is more brittle than standard PLA+ and can snap at the extruder if retraction is too aggressive.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRetraction — Bowden\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4–5mm at 40mm\/s\u003c\/td\u003e\n\u003ctd\u003eKeep Bowden tube path as straight as possible.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrying (if needed)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50–55°C for 4–6 hours\u003c\/td\u003e\n\u003ctd\u003e⚠️ Phosphorescent pigments are moisture-sensitive. Wet glow filament loses glow intensity AND prints poorly. Keep sealed until use — especially in humid climates.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eGetting Maximum Glow — Design Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge under UV for fastest, brightest results\u003c\/strong\u003e — 10–15 minutes under a UV flashlight or blacklight produces a significantly more intense glow than indoor lighting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotate while charging\u003c\/strong\u003e — ensure all faces get equal UV exposure. Uneven charging creates uneven glow spots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth top surfaces glow most evenly\u003c\/strong\u003e — enable Ironing in your slicer for display pieces. Rough layer lines scatter the emitted light and produce a patchy glow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl intensity through wall thickness\u003c\/strong\u003e — thicker sections glow brighter and longer. Design intentional variation in wall count across a single print to create zones of different glow intensity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eBest Applications for This Pack\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eWhy Glow PLA+ Works\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCosplay props and costume elements\u003c\/td\u003e\n\u003ctd\u003eGlowing accents that activate under UV blacklights at conventions — no electronics, no wiring, no batteries.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKids' room decor\u003c\/td\u003e\n\u003ctd\u003eStars, moons, name signs, and nightlight frames that charge during the day and provide soft ambient glow at night.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHalloween and seasonal props\u003c\/td\u003e\n\u003ctd\u003eSkulls, spiders, pumpkins, and atmospheric elements that activate in the dark for zero-electronics spooky effects.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNovelty and gift items\u003c\/td\u003e\n\u003ctd\u003eKeychains, figurines, and desk ornaments with a tactile glow effect that photographs dramatically for product listings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety and wayfinding markers\u003c\/td\u003e\n\u003ctd\u003eEmergency exit indicators, step edge markers, and low-light signage that remain visible after power failure.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEducational and STEM projects\u003c\/td\u003e\n\u003ctd\u003eHands-on demonstrations of phosphorescence, light absorption, and material science — memorable and visually engaging.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eStoring 3 Glow Spools\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeep sealed until the spool goes on the printer\u003c\/strong\u003e — the phosphorescent pigment is moisture-sensitive. Wet pigment loses glow intensity before it affects print quality. Don't break the seal until you're loading the machine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne airtight container handles all 3 spools\u003c\/strong\u003e comfortably with room for a desiccant pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStore in a cool, dark place\u003c\/strong\u003e — prolonged light exposure before printing doesn't helpfully pre-charge the filament. It can gradually degrade the pigment over time. Keep stock spools away from direct sunlight or strong UV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatch consistency:\u003c\/strong\u003e all 3 spools ship from the same manufacturing batch — matched glow intensity and color tone across every spool.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eWho Is This 3-Pack For?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirst-time glow filament buyers\u003c\/strong\u003e — 3 spools at 30% off is the lowest-risk way to experience the phosphorescent effect, test your hardened nozzle setup, and validate which glow variants your market responds to before committing to the 16-pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCosplay makers with a specific seasonal project\u003c\/strong\u003e — a convention build, a Halloween costume run, a themed prop series. Three kilograms covers a focused project without overstocking a specialty material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEtsy sellers sampling glow products\u003c\/strong\u003e before adding them permanently to their catalog. Test demand at bulk pricing rather than paying individual spool prices for each trial color.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMakers adding glow to an existing PLA+ catalog\u003c\/strong\u003e — 3kg alongside your standard PLA+ stock covers glow orders without a significant specialty inventory commitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSchools and STEM educators\u003c\/strong\u003e who want a visually compelling material for photophysics and material science demonstrations — 3kg covers a semester's worth of glow project material at production pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse individual spools in our \u003ca href=\"\/collections\/glow-in-dark-filament\"\u003eGlow in the Dark Filament collection\u003c\/a\u003e. Explore everything in our \u003ca href=\"\/pages\/3d-printing-filaments\"\u003e3D Printing Filaments guide\u003c\/a\u003e.\u003c\/p\u003e","brand":"IIID MAX","offers":[{"title":"Default Title","offer_id":52850021269798,"sku":"GLOW-X3","price":74.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/1986\/2822\/files\/PLA_GLOW_IN_THE_DARK_PACK_3.webp?v=1772749321","url":"https:\/\/supplies3d.shop\/products\/3-x-1kg-glow-in-the-dark-pla-filament-1","provider":"SUPPLIES3D","version":"1.0","type":"link"}