3D Printer Filament FDM filament, photopolymer resin and accessories — selection guide and factory-direct supply
Consumables decide yield and long-run cost. Kunshan 3D Seeker focuses on polymer FDM filament, supported by high-performance photopolymer resin and modified compound pellets. Our 4,000 m² lab and production facility runs ten lines, supplying distributors, cross-border sellers and factories with stable batches.
Three families of3D printing consumables
Different printing processes use entirely different consumables. Getting the category right first saves a lot of trial and error on parameters and cost.
FDM filament
The most widely used family, mainly 1.75mm. PLA, PLA+, ABS+, PETG and TPU, plus silk, glow, marble and dual-colour effects.
From CNY 27/kgPhotopolymer resin
For SLA / DLP / LCD machines: high resolution and smooth surfaces. Water-washable grades reduce odour and post-processing.
Quoted per specificationAccessories
Water-soluble PVA support, dry boxes and desiccant, bed sheets, nozzles and hot-end parts — small items that keep output stable.
Supplied with filament ordersChoose byapplication
| Application | First choice | Alternative | Why |
|---|---|---|---|
| Prototyping / education | PLA | PLA+ | Low odour, minimal warping, lowest cost |
| Display models / props | Silk PLA, dual-colour | PLA+ | Gloss and colour impact |
| Functional parts | PLA+ / PETG | ABS+ | Impact resistance, dimensional stability |
| Flexible / wear parts | TPU 95A | — | High rebound and flex fatigue resistance |
| Outdoor / chemical exposure | PETG | ABS+ | Better weather and chemical resistance |
| Fine detail / smooth finish | Water-washable resin | — | Thin layers, sharp features |
| Complex overhangs | PLA + PVA support | — | Support dissolves without marks |
Four things to verifybefore bulk purchase
- Diameter tolerance: within ±0.02mm, monitored inline by laser gauges. Larger variance causes unstable extrusion, jams and breakage.
- Moisture and packaging: vacuum bag and desiccant must be intact. Damp filament produces popping, bubbles and stringing, and yield collapses.
- Batch consistency: colour and flow variation between batches is the leading cause of returns in cross-border sales. In-house compounding keeps the spread small.
- Spool winding: neat layers without crossed strands. Poor winding jams mid-print and costs both material and machine time.
We retain samples from every batch with recorded process parameters. Customers can request diameter, moisture content and a printed test coupon for incoming inspection.
Capacity andcooperation models
| Item | Details |
|---|---|
| Facility | 4,000 m² laboratory and production space; ten experimental / production lines in operation |
| Core team | 10+ years of compounding experience across PLA, ABS, TPU, PET, PETG, PEEK, PA, PC and photopolymer resin |
| Technology | In-house formulations, imported core-component equipment, high-value recycling of low-cost plastics |
| Cost position | 30%+ cost advantage versus comparable products, stable pricing for long-term supply |
| Channels | Own stores on Taobao, Temu, JD and Pinduoduo, plus B2B distribution and export supply |
| Customisation | Private label, printed boxes, colour and effect matching, English labels and barcodes |
| Backing | Supported by the Tongji University sub-fund of Shanghai Technology Entrepreneurship Fund and the Kunshan innovation talent programme |
For distributors and cross-border sellers we recommend a small trial order first to validate yield and packaging fit, then move to rolling monthly replenishment instead of large single stock commitments.
Storage anddrying guidance
- Unopened: keep the vacuum bag intact, away from light and heat; room temperature is fine.
- Opened: sealed container with desiccant, humidity below 40% RH.
- Before use: PLA at 55 °C for 8 hours; PETG and TPU are more moisture-sensitive and benefit even more.
- Signs of moisture: popping sounds, surface bubbles and noticeably increased stringing.
Filament sourcingquestions
What types of 3D printer filament do you supply?
Three families: FDM filament (PLA, PLA+, ABS+, PETG, TPU, plus silk, dual-colour, glow and marble effects); photopolymer resin for SLA/DLP/LCD machines such as water-washable resin; and accessories including water-soluble PVA support, dry boxes, desiccant and nozzles.
How do I choose filament for a given application?
Display models and prototypes: PLA or silk PLA. Impact-resistant or outdoor parts: PETG or ABS+. Flexible, abrasion-resistant parts: TPU 95A. Fine detail and smooth surfaces: photopolymer resin. Classrooms and consumer use: PLA for low odour and safety.
What should I check before buying filament in bulk?
Four points: diameter tolerance within ±0.02mm, intact vacuum packaging and low moisture content, batch-to-batch colour and flow consistency, and neat spool winding without crossed strands. These four drive yield and return rates more than price does.
Can you supply cross-border e-commerce sellers?
Yes. We run our own stores on Taobao, Temu, JD and Pinduoduo, so we understand export packaging and compliance. We provide English labels, barcodes, carton specifications and private-label service, from trial orders to repeat bulk supply.
How should filament be stored?
Keep unopened spools vacuum-sealed. After opening, use a sealed container with desiccant and keep humidity below 40%. PLA is moderately moisture-sensitive; PETG and TPU more so. Dry at 55 °C for 8 hours before use if in doubt.
Need a price list or samples?
Tell us your printer, typical materials, monthly volume and packaging requirements — we will send a mix recommendation and tiered pricing. Phone +86 188 1759 8503 (Mr. Xie), email xiejinlong109@163.com.