Product Information
Product Name EX-300BL
Product Type Balanced Engineering UV Resin
Color Light Gray
Net Weight 1kg
Wavelength 405nm
Compatible Printers LCD / DLP UV Resin Printers
Cleaning Method Alcohol / Isopropyl Alcohol (IPA)
UV Post-Curing 30 Minutes Recommended
Actual printing and post-curing results may vary with printer light intensity, release-film condition, model structure, ambient temperature, and post-curing equipment.
EX-300BL · Balanced Rigidity and Toughness
SpiderMaker EX-300BL is a balanced engineering UV resin that combines rigidity, toughness, strength, and fine detail. It is suitable for multipurpose functional parts that require structural support while reducing the risk of brittle failure.
Compared with high-rigidity resins, EX-300BL provides better elongation and impact resistance. Compared with more flexible resins, it retains sufficient shape support and surface detail. It is suitable for prototypes, housings, accessories, fixtures, and general engineering parts. Printed parts may still shrink depending on model size, geometry, exposure, and post-curing conditions. For assembly tolerances, print a test part first.
Balanced Rigidity and Toughness · Fine Detail · Good Flow
For Functional Prototypes, Housings, Accessories, Fixtures, and Multipurpose Engineering Parts
In-House R&D · Made in Taiwan
SpiderMaker develops the EX-300BL formulation in-house and manages production and quality control in Pingzhen, Taoyuan, Taiwan. Raw-material selection, formulation, color control, and product inspection are all handled by its professional team.
SpiderMaker EX-300BL Features
Balanced Rigidity and Toughness
Combines a tensile modulus of 1489 MPa, elongation at break of 8.6%, and unnotched Charpy impact strength of 20.6 kJ/m². Suitable for parts that require structural support without excessive brittleness.
Reduced Risk of Brittle Failure
Compared with high-rigidity, low-elongation resins, EX-300BL offers better tolerance to impacts, assembly, and everyday use.
Fine Detail
Reproduces small structures, edges, and surface textures for printed parts that require both appearance and function.
Good Flow
The resin flows readily around the build platform and fine model details, supporting stable printing and easier cleaning.
Multipurpose Engineering Applications
Suitable for functional prototypes, product housings, equipment accessories, fixtures, fasteners, and general engineering applications.
Broad 405nm Compatibility
Compatible with Phrozen, Elegoo, Anycubic, and other 405nm LCD / DLP UV resin printers.
Recommended Applications
Functional Prototypes Product Housings Equipment Accessories Industrial Fixtures Fasteners and Connectors General Engineering Parts
Technical Data Sheet
| Property | Unit | Test Standard | Test Result |
| Tensile Strength | MPa | ASTM D638 Type IV | 36.6 |
| Tensile Modulus | MPa | ASTM D638 Type IV | 1489 |
| Elongation at Break | % | ASTM D638 Type IV | 8.6 |
| Flexural Strength | MPa | ISO 178 | 63.7 |
| Flexural Modulus | MPa | ISO 178 | 1923 |
| Flexural Strain at Break | % | ISO 178 | >5 |
| Charpy Impact Strength, Unnotched | kJ/m² | ISO 179-1/1eU | 20.6 |
| Heat Deflection Temperature, HDT | °C | ISO 75-2/0.45 MPa | 55.3 |
Test data were obtained from specific specimens and post-curing conditions. Actual part performance may vary with printer, exposure, model structure, print orientation, wall thickness, and post-curing uniformity.
Print Settings
Recommended Phrozen printer settings for EX-300BL are available on the UV resin print settings page. Click the button below to go directly to the EX-300BL section.
View Complete EX-300BL Print Settings Published settings are based primarily on a 0.05 mm layer height and Phrozen printers. Exposure, lift, and retract settings should still be adjusted according to resin color, light intensity, release-film condition, model size, and ambient conditions.
Washing and Post-Curing Recommendations
- After printing, remove uncured surface resin with alcohol or isopropyl alcohol.
- Avoid prolonged soaking. After washing, make sure liquid on the surface, in holes, and inside the part has completely evaporated.
- After the part is completely dry, post-cure it evenly under UV light for 30 minutes.
- Rotate thick-walled, deep-hole, or complex parts so all surfaces receive more even UV exposure.
Use and Storage
- Shake or stir the resin thoroughly before use to prevent pigments or other components from settling and affecting print results.
- For assembly tolerances or dimensional fits, print a test part first and adjust the model according to actual shrinkage.
- Filter unused resin through a fine filter before returning it to the original bottle to prevent debris from entering.
- Keep the resin away from direct sunlight and other UV sources. Seal the bottle tightly and store it in a cool place.
- Wear suitable gloves and maintain good ventilation when handling liquid resin.
