MHG – Yellow Green Strontium Aluminate Photoluminescent Pigment
MH-G Series: Green Strontium Aluminate Photoluminescent Pigment
The MHG Series is strontium aluminate doped with rare earth photoluminescent pigment (SrAl₂O₄:Eu²⁺,Dy³⁺) , with light yellow day color and yellow-green glow color. Known for its bright glow, long afterglow hours, 15 year service life, and stable chemical properties, it meets different industries' needs such as of safety signage, paints, coatings, plastics, resin, ceramic, glass, fiber, and more.
The MHG Series is strontium aluminate doped with rare earth photoluminescent pigment (SrAl₂O₄:Eu²⁺,Dy³⁺) , with light yellow day color and yellow-green glow color. Known for its bright glow, long afterglow hours, 15 year service life, and stable chemical properties, it meets different industries' needs such as of safety signage, paints, coatings, plastics, resin, ceramic, glass, fiber, and more.
- ● Global Certifications: Non-toxic. Non-radioactive. Skin safe. Compliant with international standards, including EU REACH, ASTM, and RoHS regulations.
- ● Versatile Grain Sizes: Comes in many particle sizes (from less than 5μm to 95μm) for different applications like screen printing, plastic injection molding, casting, fiber drawing, and so much more.
- ● Waterproof: Encapsulated versions available for water-based mediums or outdoor conditions, ensuring the pigment remains bright and stable without hydrolysis.
- ● Different Luminosity: We offer 6 grades of luminosity to balance performance and cost for your specific project needs.
- ● More Glow Colors: We also offer MHB Blue-Green, MHSB Sky-Blue, MHP Purple, MT Series, and MS Series.
Technical Specifications
| Model | Size (D50) μm | Afterglow Intensity (mcd/㎡) |
Glowing Color (Night) | Appearance (Daytime) | |
|---|---|---|---|---|---|
| 10 min | 60 min | ||||
| MHG-8B | 95±10 | 750 | 105 |
 Yellow-green |
 Light-yellow |
| MHG-8C | 60±5 | 620 | 80 | ||
| MHG-8D | 40±3 | 540 | 70 | ||
| MHG-8DE | 30±3 | 480 | 60 | ||
| MHG-8F | 10±3 | 240 | 25 | ||
| MHG-6B | 95±10 | 700 | 105 | ||
| MHG-6C | 60±5 | 600 | 88 | ||
| MHG-6DE | 30±3 | 450 | 65 | ||
| MHG-6EH | 24±3 | 420 | 58 | ||
| MHG-6F | 11±3 | 220 | 28 | ||
| MHG-6G | <5 | 100 | 14 | ||
| MHG-4B | 95±10 | 650 | 95 | ||
| MHG-4C | 60±5 | 550 | 80 | ||
| MHG-4D | 40±3 | 500 | 70 | ||
| MHG-4DE | 30±3 | 420 | 60 | ||
| MHG-4EH | 24±3 | 380 | 52 | ||
| MHG-4F | 10±3 | 190 | 25 | ||
| MHG-4G | <5 | 70 | 9 | ||
| MHG-2T | 45±3 | 450 | 55 | ||
| MHG-2DE | 30±3 | 370 | 45 | ||
| MHG-2F | 10±3 | 150 | 18 | ||
| MHG-1C | 95±10 | 400 | 50 | ||
| MHG-1D | 30±5 | 280 | 35 | ||
| MHG-1DY | 30±5 | 340 | 42 | ||
1. Luminance test conditions: DIN67510, D65 standard light source at 1000LX for 10min of excitation.
2. Particle size B is recommended for production craft of pouring, reverse mould, etc. Particle size C and D are recommended for printing, coating, injection, etc. Particle size E and F are recommended for printing, wiredrawing, etc.
Need to verify the glow performance in your own product?
Share your base material and application details. Our technical team will recommend the optimal photoluminescent pigment grade and arrange a free sample for your evaluation.
General Guide: How to Choose the Right Photoluminescent Pigment Model
Selecting the right grade takes two steps: first match the particle size to your process, then choose the luminosity grade based on your brightness requirement and budget.
Click below steps to learn more.
It is very important to choose the correct photoluminescent pigment particle size according to your application and products. If you choose a grain size too big, it might clog your screen/nozzle or not dispersed evenly. If you choose a grain size too small, the luminosity might not be ideal.
For photoluminescent pigment, the ones with bigger particle size generally have higher afterglow brightness and longer glowing hours. So if both grain size grade is suitable for your products, choose the model with bigger grain sizes for maximum brightness.
Here is a general guide on which grain size grade is recommended for each application:
| Recommended Grade | D50 Grain Size | Process / Application |
|---|---|---|
| BA grade | 150-300 μm | Ceramic, glass, road marking |
| B grade | 95±10 μm | Casting, pouring, reverse mould |
| C grade | 60±5 μm | Brush / roller coating, casting |
| T grade | 45±3 μm | Screen printing, injection molding, textile printing, roll coating |
| D grade | 40±3 μm | Screen printing, injection molding, textile printing, roll coating |
| DE grade | 30±3 μm | Fine screen printing, roll coating, thin films |
| EH grade/E grade | 24±3 μm | Spray painting, thin films, printing |
| F grade | 10±3 μm | Fiber drawing |
| G grade | <5 um | Fiber drawing, specialty applications |
Not sure? Contact us with your application details, and we will recommend a suitable model for you.
The number in the model name indicates the luminosity grade. Bigger numbers mean the models have higher initial brightness and longer afterglow.
c
| Grade | Characteristic | Typical Use Case |
|---|---|---|
| MHG-8 | Higher initial glow, high afterglow | Safety-critical applications, signage, premium products, etc. |
| MHG-6 | Higher afterglow, high initial glow | Safety-critical applications, signage, premium products, etc. |
| MHG-4 | Balanced initial and afterglow. | Popular grade, suitable for most industrial and consumer products. |
| MHG-2 | Economy, balanced initial and afterglow. | Popular grade, suitable for most industrial and consumer products. |
| MHG-1 | Entry level. | Cost-sensitive products, basic glow effect requirement. |
Not sure? Contact us with your application details, and we will recommend a suitable model for you.
Properties & Excitation Spectrum
| Produce Code | MHG | Appearance | Solid powder |
| Chemical Name | Strontium aluminate doped with rare earth | PH Value | 10~12 |
| Molecular Formula | SrAl2O4:Eu+2,Dy+3 | Density | 3.4 g/cm³ |
| CAS No. | 12004-37-4 | Excitation Wavelength | 240~440nm |
| Daytime Color | Light yellow | Emitting Wavelength | 520nm |
| Glowing Color | Yellow-green | HS Code | 3206500 |
Why Source Your Photoluminescent Pigment From Minhui? — China's Leading Photoluminescent Material Factory
Founded in 2003, Zhejiang Minhui Luminous Technology Co., Ltd. is one of the largest and most established manufacturers of photoluminescent materials in China. With a massive 47,000 m² facility and a $15.8M USD investment, we provide unmatched capacity and technical dominance, delivering safer and more sustainable glow in the dark solutions to clients across 50+ countries.
When you source strontium aluminate photoluminescent pigment from Minhui, you get direct access to:
- ● Unmatched Production Scale: We operate 7 kiln lines and over 70 powder processing equipments, with an annual output of 500+ tons of photoluminescent pigment. No supply chain risk. No middlemen.
- ● R&D Innovation: With 5 specialized laboratories, 200+ global patents, and annual R&D investment of over 500,000USD, we can develop custom photoluminescent pigment tailored to your luminance requirement and particle size distribution.
- ● Setting Standards: We are a key contributor to 3 national and industry standards for photoluminescent products in China, a management member of the Photoluminescent Safety Products Association (PSPA), and a member of the China Rare Earth Association. We don't just manufacture to standards, we create them.
- ● Global OEM/ODM: Powered by our ISO 9001 quality system, our strontium aluminate photoluminescent pigment meets REACH, RoHS, ASTM standards, making us the trusted OEM/ODM supplier to globally recognized brands.
Ready to evaluate our strontium aluminate pigment for your application?
Contact us for factory pricing, grade recommendations, and free samples. Reply within 24 hours.
Frequently Asked Questions (FAQ)
A: Strontium aluminate photoluminescent pigment (SrAl₂O₄:Eu²⁺,Dy³⁺) is an inorganic compound that absorbs energy from visible light or UV radiation and releases it slowly as visible glow in the dark. The added rare earth elements act as the luminescence center and energy trap that stores charge and prolongs afterglow duration.
Compared to the traditional zinc sulfide-based photoluminescent pigments, strontium aluminate photoluminescent pigment delivers 10× higher brightness and afterglow duration.
A: Human eyes are most sensitive to light in the 507–555 nm range in low-light conditions, and yellow-green strontium aluminate photoluminescent pigment has a emission wavelength of around 520nm. Therefore human eyes are very sensitive to green glow color in dark environments.
Also, yellow-green glow color is made with strontium aluminate based photoluminescent pigment, which is the type of photoluminescent pigment that has the strongest afterglow intensity.
This makes green strontium aluminate pigment the global standard for safety signage, emergency evacuation markings, and all applications where maximum visibility in darkness is critical.
A: MHG glow in the dark powder can be excited by natural daylight, indoor lighting and uv light.
Generally speaking, it can be charged by exposing to light source for 10-20 minutes, and then glows continuously for 12+ hours in the dark (decay to 0.3mcd/sqm). Direct sunlight charges it fastest but is not required.
A: Optimal loading depends on your base medium, film thickness, and performance target.
As a general guide, we recommend adding 5-50% depends on your products and adjust based on test results. For example, most manufacturers use 10–30% by weight in ink and coating systems, and 2–10% in plastic injection molding or fiber drawing.
Contact us with your formulation details for specific guidance.
A: For water-based paint, ink, or any application with moisture exposure, please ask us for the encapsulated/waterproof version, it has the same glow performance as non-waterproof version, but with full moisture resistance.
Non-waterproof version is suitable for solvent-based paints, inks, plastics, epoxy resins, and dry applications.
A: MHG strontium aluminate photoluminescent pigment is suitable for application including printing, coating, spray painting, casting, injection molding, fiber drawing, powder coating, ceramic, glass, and so much more.
We recommend you to add the pigment into transparent or semi-transparent medium so its luminosity will not be influenced.
Always verify compatibility with a small-scale trial before full production.
To get the best model, please send us your product type and application process, then we can recommend you with the most suitable grain sizes and luminosity.
A: We recommend you to add MHG pigment into transparent or semi-transparent medium, because added color/dye can decease the ability for photoluminescent pigment to absorb light, hence decrease its luminosity.
MHG strontium aluminate pigment has a light yellow appearance in daylight, so it can affect the daytime color of your product slightly.
Contact us if daytime color is a critical specification and we can advise on the best approach.
A: Yes. MHG strontium aluminate pigment is non-toxic, non-radioactive, and skin safe. It is suitable for making most industrial and consumer products.
Our photoluminescent pigment complies with: EU REACH Regulation (EC) No 1907/2006 (registered), RoHS Directive (restriction of hazardous substances), ASTM F963-16 (Standard Consumer Safety Specification for Toy Safety), CPSC-CH-E1003-09.1 (total lead content), and ASTM F963-16 Clause 8.3 (soluble heavy metals).
Full compliance documentation and test reports are available upon purchase.
A:
Our MOQ starts from 1KG.
We provide free samples to test before ordering in bulk. Contact us with your product type and application details, then we will recommend the most suitable grade and arrange sample shipment.
For bulk orders, please inquire directly for pricing.
How To Order:
Order from us is very simple. You can contact us by filling out the contact us form, or send your inquiry directly to our email sales@mphotoluminescent.com.
You can also call us at 86-579-88948789, our factory's work time is from 8AM to 5PM (UTC+8) Monday to Saturday.
Please let us know your application, requirement and order amount, then we will reply to you by email and provide a quotation to you within 24 hours. We always provide free sample for evaluation before bulk orders.
Payment:
We accept bank transfer, PayPal, Western Union, VTB and Alibaba pay.
Shipping:
We offer worldwide shipping.
For small orders, we partner with express courier including DHL, FEDEX and UPS.
For large orders, we ship by air/sea/railway.
Shipping time depends on the volume, shipping company and logistic condition. For express courier, it usually takes 3-6 days to arrive in Asia, 5-8 days to arrive in North America, Australia and Europe, 6-9 days to arrive in South America.
