Photosensitive resin, also known as photoresist, is a synthetic resin material whose chemical properties (such as solubility) change in areas exposed to light (primarily ultraviolet light). Since it does not require thermal energy and produces extremely low carbon dioxide emissions, its environmental impact is relatively minimal.

The choice depends on your end use.
Creating physical models → Select High Temperature Resistant Dental Model Resin, Water Washable Model Resin.
Creating surgical guides → Select Surgical Guide resin (must be biocompatibility certified).
Creating temporary crowns → Select temporary crown and bridge resin (must be biocompatibility certified).
Creating flexible gingiva → Select gingiva model resin.
Be sure to consult our product manual or contact our technical support for precise recommendations.

Low-viscosity resins may develop sedimentation after extended storage, and colored resins may exhibit uneven coloration. Therefore, shake thoroughly for 1-2 minutes before use.

Low-viscosity resins may develop sedimentation after extended storage, and colored resins may exhibit uneven coloration. Therefore, shake thoroughly for 1-2 minutes before use.

The primary distinctions are as follows:
Flexural modulus: Guide plate resin > Model resin > Temporary crown resin
Fracture toughness: Temporary crown resin > Guide plate resin > Model resin
Water absorption rate: Model resin < Guide plate resin < Temporary crown resin
Curing shrinkage rate: Model resin < Guide plate resin < Temporary crown resin

Key impacts include:
Temperature: Optimal at 25±3°C. Low temperatures increase viscosity and cause detail loss.
Humidity: Recommended at 40-60% RH. Excessive humidity causes resin moisture absorption, compromising performance.
Temperature and humidity control: A temperature-controlled chamber is recommended to maintain material stability.

Storage Requirements:
Store in darkness: Keep in original packaging away from light
Temperature control: Store in an environment between 15-30°C
Seal to prevent moisture: Seal immediately after use
First-in, first-out: Use according to expiration date order

For 3D printers using LCD technology:

1,Understand the device’s light intensity. Lower light intensity requires correspondingly longer exposure times during printing, and vice versa.

2,Understand wavelength characteristics. The 385nm wavelength has weaker penetration, making it suitable for transparent resin products. The 405nm wavelength has stronger penetration, making it more suitable for printing colored resin products.

Identify your 3D printer model, the slicing software used, the slicing file, and the STL file for analysis. Contacting us directly for support.

1,Long-term resin use may cause sedimentation, which can wear down release film. Try replacing the release film.

2,Insufficient model supports may lead to structural weakness. Try adding supports to the model file.

3,Excessive model weight may cause platform instability during printing.
Contact us immediately for further assistance.

Because the resin tank must be cleaned after each print to prevent residual cured material or debris from affecting subsequent prints and to avoid damaging the release film or screen.

Surface blurring may be caused by overexposure.

1,Calibrate the resin exposure time promptly.

2,Check the clarity of the release film.

3,Try extending the bottom exposure time by 10 to 20 seconds until the object adheres firmly to the platform.
Contact us for support based on your specific usage environment.

This is primarily caused by insufficient exposure. Try extending the standard exposure time by 1 to 2 seconds and set the model support density to 75% or higher. Contact us for support based on your specific operating environment.

1,Re-adjust the leveling.
2,Gradually increase the bottom exposure time by 10 to 20 seconds each time until it adheres firmly to the platform.
Contact us for support based on your specific operating environment.

Incomplete cleaning can leave uncured resin residue on the surface of the model, which not only creates a sticky texture but also interferes with the subsequent secondary curing process, resulting in a tacky surface. More seriously, residual resin may cause skin allergic reactions and compromise the dimensional accuracy and surface details of the restoration. To ensure effective cleaning, it is recommended to use isopropyl alcohol with a concentration of 95% or higher, employing a two-step process of pre-washing and precision washing, controlling the cleaning time to 2-3 minutes, and maintaining the cleaning solution temperature between 20-30°C.

Secondary curing requires professional light-curing equipment with a wavelength of 395-405 nm. Depending on the size and complexity of the model, the curing time is typically controlled between 5-15 minutes. For larger models, it is advisable to use a curing chamber with a rotating platform to ensure even exposure on all sides. During the curing process, temperature control is crucial to avoid exceeding 40°C, as higher temperatures may cause model deformation. The adequacy of curing can be determined by checking for a non-tacky surface, testing hardness values with a durometer, and observing color uniformity.

Model deformation is often caused by improper support structure design or incorrect curing parameters. Preventive measures include optimizing support structure and orientation, adopting a gradual curing program, and avoiding excessive temperatures. For already deformed models, professional repair resin can be used for correction, or shape adjustments can be made by heating and softening the material. It is important to consider the shrinkage characteristics of the model before printing and compensate through design to reduce the risk of deformation.

Surface defects often stem from inadequate cleaning, improper support removal, or rough post-processing. Solutions include ensuring the use of fresh cleaning solution and thorough cleaning, carefully removing supports and polishing contact points, progressively polishing the surface with sandpapers of varying grits, and applying a specialized protective coating if necessary. During handling, it is essential to maintain gentle techniques to avoid secondary damage to the model.

Safety precautions are critical. Nitrile gloves and protective goggles must be worn to avoid resin contact with the skin and eyes. The operating environment should be well-ventilated, and masks should be worn when necessary. Lab coats should be worn to prevent resin splashes on clothing, and the workspace should be equipped with eye wash stations and emergency showers. All operators must undergo safety training and be familiar with emergency procedures.

Cured models should be stored in a light-proof environment with constant temperature and humidity, ideally at 15-25°C and 40-60% relative humidity. Models should be prevented from squeezing each other, and independent packaging boxes are recommended. For waste resin and cleaning solution, complete curing treatment must be performed first, followed by classification and collection as chemical waste, which should be disposed of by qualified agencies. Direct disposal into drains is strictly prohibited.

Cleaning equipment requires regular replacement of cleaning solutions and thorough tank cleaning. Curing equipment should be periodically inspected to ensure ultraviolet light intensity meets standards. Ventilation systems must be kept unobstructed, with filters replaced regularly. All equipment should have maintenance records, and comprehensive inspections and calibrations should be conducted every six months. After daily use, equipment surfaces should be cleaned promptly, and the work area should be kept tidy.