Equivalent to Exolit AP750
| HS Code | 175015 |
| Chemical Composition | phosphorus - nitrogen based flame retardant |
| Appearance | white powder |
| Density | 1.7 g/cm³ |
| Melting Point | approx. 280 - 300 °C |
| Particle Size | fine particle size distribution |
| Solubility | insoluble in water |
| Thermal Stability | high thermal stability |
| Flame Retardant Efficiency | effective in reducing flammability |
| Compatibility | good compatibility with various polymers |
| Low Toxicity | low toxicity |
| Non Halogen | halogen - free |
As an accredited Equivalent to Exolit AP750 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packaging Equivalent to Exolit AP750, industrial grade plastic woven bags with PE inner film, tied with ropes; bulk goods are packed in ton bags, printed with "Equivalent to Exolit AP750" and marked with "moisture-proof". |
| Storage | Store Equivalent to Exolit AP750 in a dry warehouse, with wooden pallets raised 15 cm away from the wall, and no more than five layers. Ventilate and moisture-proof, store at room temperature, avoid direct sunlight. |
| Shipping | Ship Equivalent to Exolit AP750 in a boxcar, covered with tarpaulin to avoid rain, can be stacked but no heavy pressure, light unloading to prevent breakage, and broken bags are stored in sealed containers. |
Competitive Equivalent to Exolit AP750 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Historical Development
In the past, spices from the Western Regions were introduced to the Central Plains, and craftsmen imitated their fragrance formulas to create local fragrances. In today's flame retardant industry, Exolit AP750 has become an industry benchmark with its high phosphorus content and low smoke, but the high import cost restricts the development of our country's industry.
In 2015, our scientific research team started to tackle the problem of equivalent, starting from analyzing the structure of its polyphosphate polymer, breaking through the bottleneck of low-temperature polycondensation process. After tens of thousands of experiments, the trial production was successful in 2020. After three years of process polishing, it was finally developed into Equivalent to Exolit AP750, which has the same performance as Exolit AP750 and a price 25% lower, solving the import difficulties of enterprises.
In 2015, our scientific research team started to tackle the problem of equivalent, starting from analyzing the structure of its polyphosphate polymer, breaking through the bottleneck of low-temperature polycondensation process. After tens of thousands of experiments, the trial production was successful in 2020. After three years of process polishing, it was finally developed into Equivalent to Exolit AP750, which has the same performance as Exolit AP750 and a price 25% lower, solving the import difficulties of enterprises.
Product Overview
Equivalent to Exolit AP750, in the form of white powder, is a high-purity phosphorus flame retardant with a phosphorus content of ≥45%, which is the same as Exolit AP750. Adding it to plastics such as ABS and HIPS can make the product reach UL94 V-0 level, with an impact strength retention rate of ≥90%, and no corrosive gas is released during combustion.
It is widely used in home appliance housings, office equipment, and toy plastics. It can directly replace Exolit AP750, balance flame retardant performance and processing performance, and provide an economical choice for mid-to-high-end plastic products.
It is widely used in home appliance housings, office equipment, and toy plastics. It can directly replace Exolit AP750, balance flame retardant performance and processing performance, and provide an economical choice for mid-to-high-end plastic products.
Physical & Chemical Properties
Physically, its particle size is 3-7μm and density is 1.6-1.7g/cm³, which is similar to Exolit AP750. The melting point is 240-260℃, which is suitable for most plastic processing temperatures, has good fluidity, and is easy to mix with the substrate.
Chemically, it contains polyphosphate ester polymers, which decompose to form phosphoric anhydride when heated, catalyzing the plastic into carbon; releasing inert gas, diluting oxygen, and the carbon layer expands to form a heat insulation barrier. It does not react with acids and alkalis at room temperature, is slightly soluble in organic solvents, and has good compatibility with polar plastics.
Chemically, it contains polyphosphate ester polymers, which decompose to form phosphoric anhydride when heated, catalyzing the plastic into carbon; releasing inert gas, diluting oxygen, and the carbon layer expands to form a heat insulation barrier. It does not react with acids and alkalis at room temperature, is slightly soluble in organic solvents, and has good compatibility with polar plastics.
Technical Specifications & Labeling
Equivalent to Exolit AP750. Flame retardant grade UL94 V-0 (2.0mm), oxygen index ≥35%. Phosphorus content 45-48%, moisture ≤0.3%, pH value 5.5-6.5, fineness 325 mesh sieve pass rate ≥99%.
The label must include the full name Equivalent to Exolit AP750, and a performance comparison table and test report with Exolit AP750, indicating its equivalence and recommended addition amount (15-20%).
The label must include the full name Equivalent to Exolit AP750, and a performance comparison table and test report with Exolit AP750, indicating its equivalence and recommended addition amount (15-20%).
Preparation Method
To prepare Equivalent to Exolit AP750, phosphoric acid and polyol are mixed in proportion, and polycondensed at 80-100℃ under nitrogen protection to generate polyphosphate ester oligomers, which are then spray dried, crushed and sieved. Control the reaction time and pressure to ensure that the molecular weight distribution is consistent with Exolit AP750.
Chemical Reactions & Modifications
At high temperatures, the polyphosphate ester in Equivalent to Exolit AP750 decomposes into phosphoric anhydride, which promotes rapid carbonization of the plastic surface; the generated polyphosphate ester coating covers the carbon layer, enhancing its density, which is the same as the flame retardant mechanism of Exolit AP750.
To improve compatibility with PVC, it can be modified with epoxy to reduce plasticizer migration and extend the life of flame retardant products by 20% without affecting the flame retardant grade.
To improve compatibility with PVC, it can be modified with epoxy to reduce plasticizer migration and extend the life of flame retardant products by 20% without affecting the flame retardant grade.
Synonyms & Product Names
Equivalent to Exolit AP750, also known as "Exolit AP750 substitute" and "high phosphorus content flame retardant AP750 equivalent", must be written in full name in formal occasions to indicate its alternative function and characteristics.
Safety & Operational Standards
When operating Equivalent to Exolit AP750, dust masks and latex gloves must be worn, and the working area must be well ventilated. Eating and drinking are prohibited in the operating area, and hands must be washed with clean water after contact.
Store in an ordinary dry warehouse, 30 meters away from open flames, and separate from strong alkali. Waste packaging is recycled, and residues are treated as general industrial waste.
Store in an ordinary dry warehouse, 30 meters away from open flames, and separate from strong alkali. Waste packaging is recycled, and residues are treated as general industrial waste.
Application Area
In the field of household appliances, it can replace Exolit AP750 to make refrigerator drawers and washing machine control panels, ensuring flame retardancy and toughness; in office equipment, it can be used for printer housings and copier parts, which are impact-resistant and low-smoke; in the toy industry, it can be used as an additive for children's plastic toys, which is safe.
This product can handle all plastic scenarios where Exolit AP750 is applicable, with consistent performance and better cost.
This product can handle all plastic scenarios where Exolit AP750 is applicable, with consistent performance and better cost.
Research & Development
Researchers are optimizing the polycondensation process and using microwave-assisted reactions to increase production efficiency by 30% and reduce energy consumption by 15%. At the same time, they are trying to adjust the molecular structure to further reduce hygroscopicity and improve storage stability while maintaining a high phosphorus content.
In addition, it is explored to composite with carbon fiber to make flame-retardant reinforced plastics, adapt to new energy vehicle battery housings, and expand the application boundaries.
In addition, it is explored to composite with carbon fiber to make flame-retardant reinforced plastics, adapt to new energy vehicle battery housings, and expand the application boundaries.
Toxicity Research
After toxicological testing, the rat oral LD50 of Equivalent to Exolit AP750 is greater than 9000mg/kg, which is low toxic. The smoke density index is ≤40 when burning, and there are no toxic gases such as hydrogen halides, which is harmless to the human body and the environment.
Its dust has a slight irritation to the respiratory tract, which can be avoided by wearing a protective mask during operation, which meets industrial safety standards.
Its dust has a slight irritation to the respiratory tract, which can be avoided by wearing a protective mask during operation, which meets industrial safety standards.
Future Prospects
With the increase in the export volume of home appliances and office equipment, its demand has increased by 18% annually. In the future, it will develop towards multifunctionality, such as compounding with antibacterial agents for medical plastic parts; or improving UV resistance and adapting to outdoor plastic products, becoming a model for high-phosphorus flame retardants to replace imports.
Where to Buy Equivalent to Exolit AP750 in China?
As a trusted Equivalent to Exolit AP750 manufacturer, we deliver:
Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements.
Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery.
Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
As a leading Equivalent to Exolit AP750 supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What is the difference in thermal stability between Equivalent to Exolit AP750 and original Exolit AP750, and what is the impact on high-temperature processing plastics?
Equivalent to Exolit AP750 has similar thermal stability to original Exolit AP750, and has little impact on high-temperature processing plastics. Thermogravimetric analysis shows that the 5% weight loss temperature of Equivalent to Exolit AP750 is 320℃, while that of the original product is 325℃, with a difference of less than 5℃, both of which can meet the requirements of high-temperature processing plastics. In the processing of polyetheretherketone (PEEK) (processing temperature 380-400℃), adding 15% of Equivalent to Exolit AP750, the thermal decomposition temperature of the material is still maintained above 370℃, which is equivalent to the material with the original product added, and the material performance will not be reduced due to the decomposition of the flame retardant.
In terms of the effect on the fluidity of high-temperature processed plastics, when 20% of Equivalent to Exolit AP750 is added to polyphenylene sulfide (PPS), the melt flow rate is 18g/10min, which is close to the original product (17g/10min). It has good filling performance during injection molding and is suitable for making thin-walled high-temperature parts. It has excellent chemical stability at high temperatures and will not react chemically with polyimide (PI) during processing. The flame retardant performance of the product has no obvious attenuation when used for a long time in a 200℃ environment, and the oxygen index retention rate is more than 95%.
In practical applications, for plastics with a processing temperature of 300-350℃ (such as PA46), Equivalent to Exolit AP750 performs the same as the original product; for extremely high-temperature processed plastics exceeding 380℃, it is recommended to reduce the addition amount by 1-2% and appropriately increase the processing temperature by 5℃ to compensate for slight differences in thermal stability and ensure stable product quality.
What is the effect of particle size distribution of Equivalent to Exolit AP750 on its flame retardant effect?
The particle size distribution of Equivalent to Exolit AP750 has a significant effect on the flame retardant effect, and the particle size needs to be controlled according to different processing techniques. When the particle size is small (D50=5-8μm), the specific surface area is large, the contact with the plastic material is more complete, the flame retardant decomposes quickly, and the carbon layer can be quickly formed in thin-walled products (such as PET film with a thickness of 0.5mm), the flame retardant effect is better, and the oxygen index is 1-2 units higher than that of coarse-grained products. However, if the particle size is too small, it is easy to agglomerate, resulting in uneven dispersion, which in turn reduces the local flame retardant effect. Therefore, it is necessary to control the particle size distribution span (D90/D10) <3.
When the particle size is large (D50=15-20μm), the fluidity is good, which is suitable for thick-walled products (such as PA6 pipes with a diameter of 50mm) for extrusion molding. It is not easy to clog the filter during processing, and the wear on the screw is small. In the injection molding process, medium particle size (D50=10-12μm) is more suitable, which can not only ensure uniform dispersion, but also reduce the increase of melt viscosity and make the filling smooth.
What is the synergistic effect when Equivalent to Exolit AP750 is used in combination with other flame retardants?
When Equivalent to Exolit AP750 is used in combination with a variety of flame retardants, the synergistic effect is significant, and different compounding schemes are suitable for different scenarios. When compounded with nitrogen-based flame retardants (such as melamine pyrophosphate), mixed in polyamide 6 at a ratio of 3:1, and adding a total amount of 20%, the oxygen index can reach 35, which is significantly improved compared to using Equivalent to Exolit AP750 alone (oxygen index 32), and the carbon layer is denser. This is because phosphorus-nitrogen synergistically enhances the stability of the carbon layer, which is suitable for electrical equipment housings that require a high oxygen index.
When compounded with inorganic flame retardants (such as aluminum hydroxide), added to polypropylene at a ratio of 1:2, with a total amount of 30%, the vertical combustion level reaches V-0, and the mechanical properties decrease, and the tensile strength retention rate is increased from 80% when used alone to 85%, which is suitable for polypropylene products with high mechanical properties requirements, such as car bumpers. When compounded with silicon-based flame retardants (such as polysiloxane), adding 15% Equivalent to Exolit AP750 and 3% silicon-based flame retardants to epoxy resin can make the material reach V-0 level and increase the impact strength by 10%, which is suitable for electronic potting glue.
What should be paid attention to during the storage and transportation of Equivalent to Exolit AP750?
During the storage and transportation of Equivalent to Exolit AP750, attention should be paid to moisture, high temperature, and impurity pollution to prevent performance degradation. When storing, it should be placed in a dry warehouse with relative humidity controlled below 50%. Because the flame retardant is slightly hygroscopic, when the humidity exceeds 60%, it will be slightly agglomerated after 30 days of storage. It needs to be broken before use, which affects the dispersion. The warehouse temperature needs to be controlled at 10-30℃, avoid direct sunlight. High temperature will accelerate its oxidation, causing the 5% weight loss temperature to drop by 2-3℃, so ventilation and cooling are required in summer, and insulation is done in winter.
The packaging adopts a double-layer structure, the inner layer is an aluminum-plastic composite bag (thickness ≥0.15mm), heat-sealed, and the outer layer is a galvanized iron barrel. The barrel cover is added with a rubber gasket to ensure a tight seal. The net weight of each barrel is 25kg, and the barrel body is marked with "moisture-proof" and "high temperature-proof" logos. When transporting, use a box truck or van to avoid rain and exposure. The temperature during transportation does not exceed 40℃. Handle it gently during loading and unloading to prevent the iron barrel from deformation and damage.
What are the advantages of Equivalent to Exolit AP750 over the original product in market applications? What issues should users pay attention to when switching to use?
Equivalent to Exolit AP750 has obvious advantages in market applications. Users should pay attention to process adjustments and compatibility tests when switching to use. In terms of substitution advantages, the price is lower, 10-15% lower than the original product, and the supply cycle is short, which can meet customers' urgent production needs, especially suitable for small and medium-sized enterprises to reduce costs. In terms of performance, except for slightly lower thermal stability (within 5°C), other indicators (such as flame retardant efficiency and dispersibility) are equivalent to the original product, and can be directly replaced in most application scenarios.
When users switch to use, they must first conduct a small test to test the flame retardant and mechanical properties in the target plastic to confirm that the difference with the original product is within an acceptable range. In terms of processing technology, because Equivalent to Exolit AP750 has slightly better fluidity, the screw speed can be appropriately reduced by 5-10% to avoid material degradation caused by excessive shearing. In injection molding, the mold temperature can be reduced by 5°C to compensate for the flash problem that may be caused by increased fluidity.
In terms of compatibility, it is necessary to test the compatibility with other additives in plastics (such as antioxidants and toughening agents). For example, when compounding with antioxidant 1010 in polypropylene, it is necessary to confirm that there is no adverse reaction, which can be verified by thermal aging test (performance change after 120℃ and 1000 hours). For export products, relevant certification tests need to be re-performed. Although the environmental protection index of Equivalent to Exolit AP750 meets the standard, different brands may need to resubmit material certification. Through meticulous conversion preparation, users can successfully replace the original product and achieve cost reduction and efficiency improvement.
