YOOPAI or iSANMATE? 3d Printing Filaments Compared in 2026
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You are comparing YOOPAI vs iSANMATE 3d printing filament options for different project needs. Both brands offer 1.75mm diameter filament with tight dimensional accuracy for consistent extrusion. The main difference lies in material and scale. YOOPAI provides small 250g PLA bundles for colorful, decorative prints. iSANMATE supplies 1kg ASA spools for durable, functional outdoor parts. Your choice depends on whether you prioritize color variety or material strength.
Key differences
| Aspect | YOOPAI Rainbow PLA 250g Bundle | iSANMATE Red ASA Filament 1.75mm 1kg |
|---|---|---|
| Material | PLA | ASA |
| Weight | 250g | 1kg |
| Color Options | Rainbow | Red |
| Print Speed | not listed | Up to 100mm/s |
| Dimensional Accuracy | ±0.02mm | ±0.02mm |
Which one should you choose?
Choose YOOPAI Rainbow PLA 250g Bundle if
- You need small amounts of filament for colorful, decorative projects like figurines or vases.
- You want to experiment with multiple shades without buying large spools.
- You are printing on most FDM printers with standard spool holders.
Choose iSANMATE Red ASA Filament 1.75mm 1kg if
- You require durable, weather-resistant parts for outdoor use.
- You need a full 1kg spool for longer functional prints.
- You want technical support for printing complex ASA materials.
Verdict: Choose YOOPAI if your focus is on creative, multicolor displays with small, manageable spools. Select iSANMATE if you need robust, UV-resistant ASA for functional or outdoor applications. The decision rests on whether you value aesthetic variety or material durability.
YOOPAI vs iSANMATE Filament Guide
Material Type
YOOPAI offers Rainbow PLA filament, a material known for ease of use and vibrant color transitions. This makes it ideal for decorative items, figurines, and test prints where aesthetics matter most. iSANMATE provides ASA filament in Red, a choice engineered for durability. ASA is selected for functional parts that require resistance to UV light, weather, and mechanical stress. If you are printing outdoor components or items that need to withstand temperature changes, ASA is the practical choice. For colorful crafts and indoor decor, PLA remains the standard. Each brand targets a different end-use case with its primary material offering.
Print Weight
YOOPAI sells its Rainbow PLA in 250g mini spools. You can buy bundles of four, eight, or even sixteen spools. This small scale lets you switch colors frequently without wasting large amounts of unused filament. It is perfect for small projects or testing new color combinations. iSANMATE provides its ASA filament in 1kg spools. This larger volume is better for extended printing sessions or larger functional parts that require significant material. If you need variety and small batches, YOOPAI’s 250g spools are more flexible. For bulk production or large single-color prints, iSANMATE’s 1kg spools offer better value and less frequent reloading.
Dimensional Accuracy
Both brands list a dimensional accuracy of ±0.02mm for their 1.75mm filament. This tight tolerance ensures consistent flow from the extruder, which helps achieve even layers and clean details. YOOPAI notes that this consistency supports stable extrusion from the first layer to the final layer. iSANMATE also highlights this precision for reliable performance. Since both products meet the same strict standard, you can expect similar layer adhesion and surface quality from either filament. This spec is critical for preventing clogs and ensuring smooth feeding, regardless of whether you choose the colorful PLA or the durable ASA.
Printing Conditions
iSANMATE provides specific printing parameters for its ASA filament. It recommends a nozzle temperature between 240°C and 270°C, a bed temperature of 80°C to 100°C, and a print speed of 30-100mm/s. It also advises using a closed environment and applying glue to the bed for best results. YOOPAI does not list specific temperature or speed ranges for its PLA in the provided data. PLA typically prints at lower temperatures, but the lack of explicit guidance in the data makes direct comparison difficult. iSANMATE gives you clear technical instructions, while YOOPAI relies on general PLA compatibility with most FDM printers.
Spool Compatibility
YOOPAI specifies its spool dimensions: 140mm diameter, 36mm width, and a 53mm center hole. It explicitly mentions compatibility with Bambu Lab AMS or AMS Lite, noting that you may need a compatible 250g spool adapter from MakerWorld. iSANMATE states its filament is compatible with most consumer and industrial 3D printers but does not list specific spool dimensions or AMS adapter requirements. If you use an automated multi-color system like Bambu Lab, YOOPAI provides the necessary details to ensure proper fit. For standard open-frame or direct-drive printers, both options should load without issue.
Choose the right filament for your needs
Small decorative print enthusiasts
You need variety without clutter. This bundle offers multiple 250g spools of Rainbow PLA. The 1.75mm diameter with ±0.02mm accuracy ensures smooth feeding and consistent layers. The shorter color transitions work well for vases, figurines, and small accent parts. You get vibrant aesthetics without storing large, rarely used spools.
Outdoor functional part makers
You require durability for outdoor use. This ASA filament provides excellent UV and weather resistance. It withstands mechanical stress and temperature changes better than PLA. The 1kg spool supports larger functional prints. You get stable performance for parts that face long-term exposure to the elements, ensuring they remain intact.
Users needing technical support
You want reliable assistance with challenging materials. ASA requires specific settings like 240°C to 270°C printing temperature and a closed environment. This brand offers 24-hour guaranteed technical replies. You get help with printing problems, ensuring you can successfully produce functional parts despite the higher complexity of ASA material.
The products compared
YOOPAI Rainbow PLA 250g Bundle
Best for: small colorful prints and color testing
- Material Type
- PLA
- Filament Diameter
- 1.75mm
- Net Weight
- 250g
- Dimensional Accuracy
- ±0.02mm
- Color Printing
- Multi-Color
- Target Audience
- Beginners
View on Amazon: YOOPAI Rainbow PLA 250g Bundle Affiliate link
This YOOPAI bundle includes four 250g spools of 1.75mm PLA filament with a rainbow color effect. The consistent 1.75mm diameter with ±0.02mm accuracy supports stable flow and clean detail. The compact 250g size is ideal for small prints, test models, and accent parts. You get a variety of colors without storing large 1kg spools. The precision winding helps reduce snags during feeding.
Pros
- Four 250g mini spools for color variety
- 1.75mm diameter with ±0.02mm accuracy
- Rainbow color effect for creative projects
- Precision winding for smooth feeding
Cons
- 250g weight is smaller than standard 1kg spools
- Requires adapter for Bambu Lab AMS systems
- PLA material lacks heat resistance for functional parts
Good fit if
- You need small amounts of different colors
- You print miniatures, toys, or decor items
- You want to test new colors without bulk
Skip if
- You require high-temperature resistant materials
- You need large single-color spools
- You use Bambu Lab AMS without adapters
Verdict: YOOPAI Rainbow PLA 250g Mini Spool Bundle is a practical option for hobbyists printing small, colorful items. It suits users who value color variety and manageable spool sizes over bulk printing.
iSANMATE Red ASA Filament 1.75mm 1kg
Best for: durable outdoor functional parts
- Material Type
- ASA
- Filament Diameter
- 1.75mm
- Net Weight
- 1kg
- Max Print Speed
- 100mm/s
- Dimensional Accuracy
- +/- 0.02mm
- Color
- Red
View on Amazon: iSANMATE Red ASA Filament 1.75mm 1kg Affiliate link
This iSANMATE ASA filament is designed for outdoor functional parts that need UV and weather resistance. It comes in a 1kg spool with a 1.75mm diameter and maintains a dimensional accuracy of +/- 0.02mm. You should print between 240°C and 270°C, using a hot bed set to 80°C - 100°C. The vacuum-sealed packaging helps preserve material quality. It fits users needing durable, heat-resistant prints for long-term exterior use.
Pros
- ASA material provides UV and weather resistance
- Dimensional accuracy of +/- 0.02mm
- 1.75mm diameter compatible with most printers
- Vacuum-sealed packaging with desiccant
- 1kg net weight per spool
Cons
- Requires a closed environment to manage fumes
- Higher printing temperature range than PLA
- Only one color option shown in data
Good fit if
- You need parts for outdoor exposure
- You require high heat and impact resistance
- You are printing functional mechanical components
Skip if
- You only print decorative indoor items
- You lack a heated bed above 80°C
- You want to print without ventilation
Verdict: iSANMATE ASA 1.75mm Red 1kg is a solid choice for makers building durable outdoor tools or mechanical parts that must withstand sunlight and weather. It suits those who already have the necessary ventilation and heated bed setup for ASA printing.
Specifications side by side
| Spec | YOOPAI Rainbow PLA 250g Bundle | iSANMATE Red ASA Filament 1.75mm 1kg |
|---|---|---|
| Material Type | PLA | ASA |
| Filament Diameter | 1.75mm | 1.75mm |
| Net Weight | 250g | 1kg |
| Max Print Speed | not stated | 100mm/s |
| Dimensional Accuracy | ±0.02mm | +/- 0.02mm |
| Color Printing | Multi-Color | not stated |
| Compatible Material | PLA | ASA |
| Target Audience | Beginners | not stated |
| Color | Pla Bundle-250gx4-2230028 | Red |
| Color Effect | Rainbow | not stated |
| Application | not stated | Functional Parts |
| Weight | 2.6 pounds | 2.2 pounds |
| Dimensions | not stated | 1 × 1 × 1 inches |
| Size | 3d filament | 1X 1KG |
| Model | 2230028 | ASA-Red |
Frequently asked questions
Is YOOPAI Rainbow PLA safe for indoor use?
Yes. PLA filament is generally considered safe for indoor printing because it emits minimal fumes compared to engineering plastics. YOOPAI’s Rainbow PLA is designed for hobbyists creating small, colorful items. You can use it in open spaces without specialized ventilation, making it ideal for decorative prints and figurines in your home workshop.
Does iSANMATE ASA require a heated bed?
Yes. ASA filament has a high glass transition temperature and tends to warp if the bed is not hot enough. The iSANMATE Red ASA is suited for users who already have a heated bed setup. Proper temperature control ensures the durable functional parts adhere well and maintain their dimensional accuracy during the print.
What diameter filament do these brands use?
Both YOOPAI and iSANMATE use 1.75mm diameter filament. This is the standard size for most consumer and prosumer 3D printers. The consistent diameter, combined with tight tolerances, ensures smooth feeding into your extruder. This standardization allows you to switch between these brands without needing to adjust your printer’s nozzle or feeder settings.
Is YOOPAI PLA suitable for outdoor projects?
No. PLA degrades under UV exposure and loses strength in high temperatures. YOOPAI’s Rainbow PLA is best for small, colorful indoor prints. If you need to build durable outdoor tools or mechanical parts that must withstand sunlight and weather, you should choose a material like ASA instead of PLA for better longevity.
How much filament comes in the YOOPAI bundle?
The YOOPAI Rainbow PLA bundle includes four 250g spools. This totals 1kg of filament. The smaller spool size is practical for hobbyists who want color variety without storing large, heavy rolls. It allows you to test different colors or create multi-color projects without committing to a full kilogram of a single shade.
Is iSANMATE ASA good for mechanical parts?
Yes. iSANMATE markets its ASA filament for functional parts. ASA offers high impact resistance and durability, making it suitable for mechanical components. The red variant provides a solid choice for makers building tools or parts that require structural integrity. Its dimensional accuracy ensures that moving parts fit together correctly after printing.
Can I print with YOOPAI Rainbow PLA easily?
Yes. PLA is known for its ease of use and low warping tendencies. YOOPAI’s Rainbow PLA transitions smoothly between colors, which simplifies the printing process for decorative items. You do not need advanced printer settings or a closed chamber. This makes it an accessible option for beginners or those printing figurines and test pieces.
Does iSANMATE ASA offer tight dimensional accuracy?
Yes. The iSANMATE Red ASA filament specifies a dimensional accuracy of +/- 0.02mm. This precision helps ensure consistent layer height and smooth extrusion. Tight tolerances are critical for functional parts where fit and finish matter. You can rely on this accuracy to produce reliable mechanical components without frequent calibration adjustments.