Se utilizzi la stampa 3D per i prototipi, modelli dentali, o parti ad alto dettaglio, comprendere il prezzo per grammo della resina fotosensibile è fondamentale per pianificare un budget efficace. Il costo di questa resina non è fisso: varia da 0.5 RMB/grammo a 50 RMB/grammo depending on type, marca, prestazione, e volume di acquisto. This guide breaks down the core factors affecting price, provides practical price references, shares cost-saving tips, and addresses common questions to help you make informed decisions.
1. 5 Core Factors That Affect the Price Per Gram of 3D Printing Photosensitive Resin
The price per gram of photosensitive resin is shaped by tangible factors—from material performance to purchase quantity. Below is a detailed breakdown of each factor, con esempi del mondo reale per illustrare il loro impatto:
(1) Resin Type & Prestazione
Performance is the biggest driver of price. Resins are categorized by their functional use, and higher-performance options (per esempio., resistente al calore, biocompatibile) cost significantly more:
| Resin Category | Key Performance Traits | Price Range (RMB/grammo) | Typical Applications |
| General-Purpose Resin | Basic detail, low heat resistance (≤60°C) | 0.5 ~ 3 | Ordinary prototypes, model making (per esempio., parti di giocattoli) |
| High-Performance Resin | Elevata tenacità, resistenza al calore (60–120°C), resistente all'usura | 3 ~ 10 | Parti industriali (per esempio., piccoli ingranaggi, involucri elettronici) |
| Special-Functional Resin | Biocompatibile (dental/medical), optical grade, fluorescent | 10 ~ 50 | Modelli dentali, impianti medici, componenti ottici |
Esempio: A general-purpose resin for a simple prototype costs 0.5–3 RMB/gram, while a dental-grade resin (requiring biocompatibility certification) costs 10–30 RMB/gram—5–20x more.
(2) Brand Origin (Domestic vs. Imported)
Brand origin affects both price and quality. Domestic brands offer cost-effective options, while imported brands (especially high-end ones) command premium prices:
| Brand Type | Price Range (RMB/grammo) | Qualità & Support Traits | Popular Brands |
| Domestic Brands | 0.5 ~ 5 | Performance close to imports; consegna più veloce | Zhongshan Blue Whale, eSUN, Huixiang |
| Imported Brands | 2 ~ 10 | Controllo di qualità rigoroso; wider certification (per esempio., FDA) | formlabs, Stratasys, EnvisionTEC |
| High-End Medical/Dental Brands | 15 ~ 50 | Medical-grade certification (per esempio., ISO 10993); biocompatibile | 3D Systems (dental line), Formlabs BioMed |
Esempio: A domestic general-purpose resin costs 0.5–1.5 RMB/gram, while an imported general-purpose resin (per esempio., Formlabs Standard Resin) costs 1.5–3 RMB/gram—2–3x more.
(3) Purchase Volume
Buying in bulk unlocks significant discounts, as suppliers reduce unit prices to offset fixed costs (per esempio., confezione, logistica). The larger the order, the lower the price per gram:
| Purchase Volume | Price Discount (contro. Piccoli lotti) | Esempio: Domestic General-Purpose Resin (Original Price: 1 RMB/grammo) |
| Piccolo lotto (<1kg) | 0% (No Discount) | 1 RMB/gram → Total for 1kg: 1,000 RMB |
| Medium Batch (1–10kg) | 10 ~ 20% | 0.8 ~ 0.9 RMB/gram → Total for 5kg: 4,000 ~ 4,500 RMB |
| Large Batch (>10kg) | 20 ~ 50% | 0.5 ~ 0.8 RMB/gram → Total for 20kg: 10,000 ~ 16,000 RMB |
Key Tip: Even if you don’t need 10kg immediately, ask suppliers about “cumulative orders” (per esempio., 5kg now + 5kg in 3 mesi) to qualify for bulk discounts.
(4) Colore & Special Effects
Standard colors are cheaper, while custom colors or special effects (per esempio., metallico, fluorescent) add to the cost:
| Color/Effect Type | Price Range (RMB/grammo) | Use Case Example |
| Standard Colors (bianco, nero, trasparente) | 0.5 ~ 3 | Basic prototypes, non-visible parts |
| Special Colors (traslucido, gradient) | 2 ~ 5 | Aesthetic parts (per esempio., display models) |
| Special Effects (fluorescent, metallico) | 3 ~ 10 | Parti decorative (per esempio., custom figurines) |
Esempio: A transparent general-purpose resin costs 0.8 RMB/grammo, while a fluorescent version of the same resin costs 3–5 RMB/gram—4–6x more.
(5) Supplier Channel
Where you buy the resin also impacts price. Official channels offer security but cost more, while direct manufacturer purchases save money for large orders:
| Supplier Channel | Price Level | Pro | Contro |
| Official Brand Stores/Platforms | Alto | Garanzia di qualità; after-sales support | Higher prices; no negotiation for small orders |
| Direct Manufacturer | Medium-Low | Bulk discount negotiation; fresh stock | Minimum order quantity (often ≥1kg) |
| Third-Party Distributors | Medio | Convenient one-stop shopping; small order options | Potential stock delays; limited discount |
2. Practical Price Reference Table for 3D Printing Photosensitive Resin
To help you quickly gauge reasonable prices, below is a comprehensive table of common resin types, marchi, and their price per gram:
| Resin Type | Brand Origin | Price Range (RMB/grammo) | Caratteristiche principali | Applicable Scenarios |
| General-Purpose Resin | Domestic | 0.5 ~ 1.5 | Facile da stampare; good detail for basic use | Prototipi di giocattoli, simple model making |
| General-Purpose Resin | Imported | 1.5 ~ 3 | Qualità costante; wider printer compatibility | High-detail non-functional parts |
| High-Toughness Resin | Domestic | 2 ~ 5 | Resistente agli urti; suitable for functional parts | Piccoli ingranaggi, electronic housing prototypes |
| High-Toughness Resin | Imported | 4 ~ 8 | Industrial-grade durability; resistente al calore | Industrial functional parts (per esempio., staffe per sensori) |
| Dental/Medical Resin | Domestic | 10 ~ 20 | Biocompatibile; meets dental standards | Dental crown models, orthodontic aligner prototypes |
| Dental/Medical Resin | Imported | 20 ~ 30 | FDA/CE certified; consistent biocompatibility | Impianti medici, high-precision dental models |
| Special-Effect Resin (fluorescent) | Domestic | 3 ~ 7 | Glows in dark; good detail | Parti decorative, custom figurines |
| Special-Effect Resin (metallico) | Imported | 5 ~ 10 | Metallic finish; resistente all'usura | High-end display models, prototipi di gioielli |
3. 4 Proven Tips to Reduce the Cost of 3D Printing Photosensitive Resin
Non devi sacrificare la qualità per risparmiare denaro. Try these strategies to lower your resin costs:
(1) Choose Domestic Brands for Non-Critical Parts
Domestic resins (per esempio., eSUN, Zhongshan Blue Whale) have performance levels close to imported ones but cost 30–50% less. For non-critical parts (per esempio., prototype drafts), they’re an excellent choice. Per esempio, using a domestic general-purpose resin (0.8 RMB/grammo) instead of an imported one (2 RMB/grammo) salva 60% per grammo.
(2) Buy in Bulk (or Join Group Buys)
If you use resin regularly, order 10kg+ to get 20–50% discounts. If your needs are small, join industry group buys (per esempio., via 3D printing forums) to pool orders and qualify for bulk pricing. A 10kg order of domestic high-toughness resin (original 5 RMB/grammo) drops to 2.5–4 RMB/gram with a 20–50% discount.
(3) Prioritize General-Purpose Resins
Only use special-functional resins (per esempio., dentale, fluorescent) when necessary. For most prototypes, general-purpose resin (0.5–3 RMB/gram) funziona perfettamente. Per esempio, a display model doesn’t need heat-resistant resin—using a standard transparent resin saves 50–80% vs. a high-performance one.
(4) Optimize Resin Usage
Reduce waste by optimizing your 3D prints:
- Design lightweight parts: Use hollow structures or lattice infills to cut resin use by 15–30%.
- Calibrate your printer: Proper exposure settings prevent over-curing (which wastes resin) and under-curing (which ruins parts, requiring reprints).
- Reuse uncured resin: Collect excess resin from the build plate and return it to the bottle (if clean) to avoid waste.
4. Key Precautions When Buying 3D Printing Photosensitive Resin
To avoid overpaying or buying unsuitable resin, keep these precautions in mind:
(1) Check Printer Compatibility
Not all resins work with all 3D printers. Per esempio, some resins are designed for DLP printers, while others work with SLA printers. Using incompatible resin leads to poor prints (wasting money) or even printer damage. Always confirm compatibility with your printer model before purchasing.
(2) Verify Certification for Special Use Cases
For medical/dental parts, ensure the resin has relevant certifications (per esempio., ISO 10993 per la biocompatibilità, FDA approval). Uncertified resin may be cheaper but poses safety risks (per esempio., skin irritation or toxicity) and fails to meet industry standards.
(3) Check Storage & Shelf Life
Photosensitive resin degrades when exposed to light or heat. Buy only as much as you can use within 6 mesi (the typical shelf life after opening) to avoid wasting expired resin. Store resin in a cool, dark place and seal the bottle tightly after use.
Yigu Technology’s Perspective on 3D Printing Photosensitive Resin Pricing
Alla tecnologia Yigu, crediamo bilanciare prestazioni e costi is the key to choosing photosensitive resin. Many clients overspend by using high-end imported resin for non-critical parts—for example, buying Formlabs resin (2–3 RMB/gram) for simple prototypes when domestic eSUN resin (0.8–1.5 RMB/gram) works just as well. Our team helps clients match resin to their needs: for dental models, we recommend certified domestic resin (10–20 RMB/gram) to save 30–50% vs. imported options; for industrial parts, we suggest domestic high-toughness resin (2–5 RMB/gram) to cut costs without sacrificing durability. We also assist with bulk ordering, helping small clients join group buys to access 20–50% discounts. Our goal is to help clients get the right resin at the right price.
Domande frequenti
- Why is dental-grade photosensitive resin so expensive (10–30 RMB/gram)?
Dental resin requires strict biocompatibility (to avoid harming oral tissue) e alta precisione (to match tooth shapes). It undergoes expensive testing and certification (per esempio., ISO 10993), and its formulation uses high-quality, non-toxic ingredients—all of which drive up the price.
- Can I mix different brands of photosensitive resin to save money?
No—mixing brands is not recommended. Different resins have different chemical compositions (per esempio., monomer ratios, photoinitiators), which can cause poor curing (resulting in weak or deformed parts), resin separation, or even damage to your printer’s resin tank. Stick to one brand for consistent results.
- Is it cheaper to buy resin in large bottles (per esempio., 5kg) contro. small bottles (per esempio., 1kg)?
Yes—large bottles have lower price per gram. Per esempio, a 1kg bottle of domestic general-purpose resin costs 1,000 RMB (1 RMB/grammo), while a 5kg bottle costs 4,000 RMB (0.8 RMB/grammo)—a 20% discount. Tuttavia, only buy large bottles if you can use the resin within its shelf life (6 months after opening) to avoid waste.