Cap Filter Mesh, also known as Mesh filter cap, are widely used in all walks of life and are commonly used as components in the filtration process. It is widely used in automobile and motorcycle wheels, cylinder pistons, aluminum rods, aluminum materials, aluminum ingots, aluminum plates and precision casting of all types of aluminum alloy casting.The structure of the covered mesh cap is simple, economical and practical, and the data such as filtration accuracy, size, appearance and shape can be adjusted as needed.

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Cap type fiberglass filter mesh is usually a network structure, which is a non-metallic liquid metal purification device with the required mesh opening. Its porosity is higher, the slag collection surface area is larger, and it can reduce the the Reynolds number of the mesh metal surface flowing through the cast filter, then it can make the filler be more stable and reduce the production of secondary oxidation slag in the mold.

Cangchen can provide you with customized services and recommendations according to your needs. If you need Cap Filter Mesh, just click the button below.

Production process of fiberglass cap filter

Hot press set shape    &    Side cut trimming

Cap Filter Mesh Features and Functions:

● Carbonized by High Temperature.

● Coated with special resin.

● Smokeless & Odorless & Flameless.

● With one or two staple or not, up to clients' need.

● Effectively remove impurities, reduce turbulence and eliminate air bubbles from molten aluminium.

●  Improving the quality of castings and reducing costs.

● The aluminium filtered by this mesh can be recycled again.

●  It is environment-friendly products.

●  All shapes can be customized according to clients' requirements.

The usage of cap type fiberglass filter mesh can effectively remove liquid metal and non-metallic inclusions, improve the structure and mechanical properties of castings, improve the high quality standards of precision castings production and reduce the rate of casting defects. It can also reduce tool wear during machining and significantly improve efficiency. In addition, it can reduce porosity in the casting, reduce surface defects and reduce casting and filling lines, significantly increasing the process yield, which is much better than high silicon screen casting filters and cast filter products with straight holes.

Purification mechanism of cap type fiberglass filter mesh:

1. Since the cap fiberglass filter mesh is placed at the bottom of the gate of the sprue cup, runner or sand mold, the molten metal injected from the sprue cup into the cavity can stay momentarily while passing through the position. The slag can be the main small-density inclusions floating and separating from the molten metal. These inclusions also produce deep adsorption when they pass through regular or irregular grids. This phenomenon can continue to purify molten metal before the pouring cup is filled.

2. The role of surface filtration: Surface filtration is a common metal liquid purification function of all casting filters. When the molten metal passes through the casting filter, unfloated or floating inclusions with a relatively large surface area, such as molten slag, are captured by the surface of the casting filter. In addition, the captured inclusions will form a finer filter eye with the cast filter continue trapping subsequent inclusions, thus enhancing the filtration effect. However, at the same time of this surface filtration, with the decrease of the pouring temperature and the increase of the viscosity of the molten metal, as well as the extension of the pouring time, the cap filter mesh will be blocked to varying degrees, thus make filtering effect be worse.

So, the cap filter mesh should be replaced with a new one according to actual casting scenario to keep its best filtering effect.

To use the fiberglass mesh filter to replace the traditional wire mesh filter and realize fiberglass aluminium filtration:

● Never change molten aluminum element or contaminate molten aluminum.

● No worry about the riser remelt anymore and easy to handle the aluminum scrap recycling.

● Fiberglass mesh can float on top of molten aluminum in furnace being remelt and recycled and it can be more easily scooped out.

● Reduces molten aluminum turbulence and improves distribution and flow.

● Remove oxides and inclusions to improve castings mechanical properties and surface finish.

● Excellent stiffness and toughness, good heat resistance.

The cap fiberglass filter mesh cost is cheap, easy to use, it can improve the mechanical properties of castings without changing the metal composition, improve the production quality of castings. At the same time, it is resistant to high temperature and ablative properties, and it can operate at temperatures of about 850 degrees.

1. Improve the graphite form in the casting to reduce the graphite size, thinner thickness and slightly curved shape.

2. Change the machining performance of castings and improve the processing speed.

3. Stabilize the metal melt and flow rate, completely protect the cavity and prevent the metal melt from damaging the cavity and causing sand clamping defects in the casting!

4. Prevent the flow of metal melt too fast, resulting in sand expansion, cavity drop, burrs and uneven surface!

5. Eliminate bubbles to increase the density and hardness of the casting and the tensile strength at room temperature. 

6. Efficient removal of impurities, reduce casting inclusions, air, slag holes and trachoma defects, greatly reducing the defective rate!

7. The trial production range includes cast steel, cast iron, cast copper, cast aluminum, sand casting, bright casting, wax casting and lost casting, water glass and resin sand casting, which greatly improve the production of castings and reduce foundry costs.

About Cap Filter Mesh customization:

Materials: Fiberglass
Shapes: The shapes of filter screen products are: rectangle, square, circle, ellipse, ring, rectangle, hat, waist, and special-shaped.
Types: single-layer, double-layer, and multi-layer.
Produce process: The different shapes of the filter mesh, and the technology is also different.

Cap Filter Mesh with staples

Cap Filter Mesh of different shapes

TypeFiberglass Cap Filter For AluminumWork Temperature700-800℃Softening Temperature900℃Continuous Working Hours＜20Min.（700-800℃）SiO258%-65%Loss on ignition≤3%Gas Emit≤30cm3/gThickness0.35-0.5mmWeight150-350 g/m2Hole Size0.8*0.8/1.0*1.0/1.2*1.2/1.5*1.5/2.0*2.0/2.5*2.5mmWeave PatternLenoCertificateSDSISO:

Cangchen is a professional foundry filtration products manufacturer who focuses on production, sales, service and solutions. If you want to know more about our Cap Filter Mesh price, we are online 24 hours a day and welcome your consultation.

FAQ Guide to Cap Filter Mesh

1.How is the cap filter mesh made?

The cap filter mesh is made of high-silica fiber mesh cloth and frosted mesh cloth as the basic material. It is a mesh with a certain degree of rigidity made by coating the surface with high temperature-resistant paint. The fiber filter for cast aluminum is generally made of alkali-free mesh. Fiber filters for cast iron and cast steel are generally made of high-silica glass fiber mesh.

2.How to use a cap filter mesh?

Cap filter is often used to form cavities for castings that are complex or difficult to form. It can be used for investment casting. You can use it for automobiles, motorcycle wheels, cylinders, pistons, aluminum rods, aluminum materials, aluminum ingots, aluminum plates, and various aluminum alloy parts. In addition to being an ideal filter material for various metal melts, it can also be used for the filtration of chemical corrosive liquids and high-temperature gases.

3.What are the advantages of the cap filter mesh?

The cap filter mesh can effectively remove harmful impurities in the metal melt and improve the casting mechanical properties. It can improve the graphite morphology in the casting and change the casting machinability.

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4.What are the types of casting filters mesh?

The casting filters types include molten aluminum filters, molten iron filters, molten steel filters, etc. According to materials, it can be divided into special fiber filters for casting, ceramic foam casting filters, and honeycomb ceramic casting filters.

5.What are the types of fiber filters for casting?

Fiber filters for casting can be divided into fiber filters for molten steel, molten iron, and molten aluminum according to the use. According to different shapes, it is divided into flake, round, spherical, cap, cylindrical filter and so on. According to different materials, it can be divided into the alkali-free mesh, medium-alkali mesh, high-silica mesh, and other filters.

6.Can the cap filter mesh withstand high temperatures?

Different materials have different temperature resistance. The cap filter mesh can generally withstand instantaneous high temperatures of more than degrees.

7.What is the mesh size of the cap filter mesh?

It can be divided into 0.8mm, 1.0mm, 1.5mm, 2.0mm, and 2.5mm according to the mesh size.

8.Can the cap filter be cut?

The mesh can be cut into any size shape with scissors. You can place it under the pouring cup, on the overlapping surface of the runner, the runner and the sprue overlap surface, and press the box tightly.

Is Fiberglass Mesh Better Than Polyester Mesh?

When it comes to reinforcing materials for various applications, two popular options often come to mind: fiberglass mesh and polyester mesh. Both materials have their own set of unique characteristics and benefits. In this blog, we will delve into the key aspects of fiberglass mesh and polyester mesh to determine which one offers superior performance and durability. So, let's weigh the pros and cons and find out which mesh comes out on top.

1. Strength and Durability

Fiberglass Mesh: Fiberglass mesh is renowned for its exceptional strength and durability. It possesses high tensile strength, making it resistant to stretching or tearing. This characteristic ensures that fiberglass mesh can withstand substantial forces, making it ideal for demanding applications such as construction and industrial projects. Additionally, fiberglass mesh maintains its structural integrity over a long period of time, providing reliable reinforcement. 

Polyester Mesh: Polyester mesh is also known for its strength; however, it falls slightly behind fiberglass mesh in terms of tensile strength. Polyester mesh is suitable for applications with lower stress levels and moderate load-bearing requirements. While it offers durability, it may not be as resilient as fiberglass mesh in demanding conditions.

2. Resistance to Environmental Factors

Fiberglass Mesh: Fiberglass mesh exhibits remarkable resistance to environmental factors. It is anti-aging, anti-cold, anti-heat, and anti-drying, making it suitable for diverse climates and temperature fluctuations. Fiberglass mesh is also moisture-resistant, preventing water damage and mold growth. Moreover, it is flaming retardant, reducing the risk of fire hazards.

Polyester Mesh: Polyester mesh is generally less resistant to environmental factors compared to a fiberglass mesh. While it offers decent resistance to moisture, it may not be as effective in extreme weather conditions or prolonged exposure to UV rays. Polyester mesh is not flame retardant and may be susceptible to damage in fire-prone environments.

3. Application Versatility

Fiberglass Mesh: Fiberglass mesh is highly versatile and finds extensive use in various industries. It can be directly installed on window frames, wood, steel, aluminum, and plastic doors and windows. This adaptability makes it a preferred choice for construction, renovation, and even in DIY projects.

Polyester Mesh: Polyester mesh is also versatile and commonly used in applications such as screen doors, outdoor furniture, and craft projects. It is particularly popular in the textile industry for fabric production. However, its usage may be more limited compared to fiberglass mesh due to its lower resistance to environmental factors.

4. Health and Safety Considerations

Fiberglass Mesh: Fiberglass mesh is a safe and healthy option as it does not contain toxic elements or emit any harmful odors. Additionally, the use of glass fiber yarn in window screens helps prevent fires, ensuring the safety of occupants.

Polyester Mesh: Polyester mesh is generally considered safe; however, it may contain certain chemicals depending on the manufacturing process. Care should be taken to choose polyester mesh that meets safety standards and regulations.

5. Dimensional Stability:

Fiberglass Mesh: Fiberglass mesh exhibits superior dimensional stability. It retains its shape and size even when subjected to temperature fluctuations and moisture exposure.

Polyester Mesh: Polyester mesh may experience dimensional changes when exposed to temperature variations and moisture, potentially leading to shrinkage or expansion.

6. Dimensional Stability:

Fiberglass Mesh: Fiberglass mesh is lightweight and highly flexible, allowing for easy installation and adaptation to various surfaces. It is commonly used in applications like wall insulation and reinforcing plaster.

Polyester Mesh: Polyester mesh can be heavier and less flexible, which can make it less convenient for some installation tasks.

7. Cost:

Fiberglass Mesh: Fiberglass mesh tends to be slightly more expensive than polyester mesh due to its superior performance and durability. However, the long-term benefits may outweigh the initial cost.

Polyester Mesh: Polyester mesh is a cost-effective solution compared to fiberglass mesh. You can choose polyester mesh when the primary concern is the cost.

Is polyester stronger than fiberglass?

Polyester and fiberglass are distinct materials with different properties, and comparing their strengths is more complicated as it depends on the context of use. Fiberglass, composed of glass fibers, generally offers higher tensile strength and durability than polyester, a type of plastic. Its strength-to-weight ratio is renowned, making it a preferred choice for structural and high-strength applications, like in the automotive and marine industries. On the other hand, polyester, known for its flexibility, chemical resistance, and resilience to environmental factors, is often used in textiles, containers, and as a binder in fiberglass composites. In these composites, polyester's role is more about binding and flexibility, while fiberglass provides the structural strength. Therefore, fiberglass typically outperforms polyester for pure strength, especially in structural and load-bearing contexts.

Can fiberglass break?

Fiberglass, known for its strength and durability, is not impervious to breaking. It is a composite material made from fine glass fibers woven into a fabric and reinforced with a resin. While it possesses high tensile strength and is more flexible than rigid materials like glass, it can break or crack under certain conditions. Excessive force, impact, or continued stress can cause fiberglass to fracture. Environmental factors such as extreme temperatures or corrosive chemicals can also degrade the material, reducing strength and potential breakage. Despite its robustness, handling fiberglass with care is vital to maintain its integrity.

What type of screen mesh is best?

Determining the best screen mesh type depends on various factors, including durability, visibility, and specific use cases. Here's a detailed overview based on current information:

Fiberglass Screen: 

Commonly used due to its affordability, fiberglass screen is a standard choice for window screens, screen doors, and porch enclosures. It's budget-friendly and offers adequate insect protection. However, it lacks the durability and strength required for some applications​​.

Aluminum Screen:

Aluminum screen mesh offers enhanced durability compared to fiberglass, which is ideal for sliding doors and window screens. It maintains tightness and is easy to clean. Charcoal or black aluminum screens are recommended for better visibility​​.

Super Screen: 

This vinyl-coated polyester screen is three times stronger than standard fiberglass mesh. It's UV-tolerant, weather-resistant, pet-resistant, and provides insect protection. Super Screen is an excellent option for patio screen mesh, pool enclosures, screen doors, and windows, offering strength and increased visibility​​.

Pet-Resistant Screen: 

Made from vinyl-coated polyester, this screen is seven times stronger than fiberglass and can withstand the rigors of pet paws, claws, and teeth. While it offers increased durability and weather resistance, its strength compromises visibility, making it less ideal for window screens but great for screen doors, porch enclosures, and pet enclosures​​.

UltraVue and BetterVue Screens:

These are the best choices for high visibility, offering the clearest outward view. They provide excellent insect protection, increase airflow, and are equipped with water-shedding and dirt-resistant technology. UltraVue is suited for window screens, while BetterVue is more assertive and ideal for screen doors and porch enclosures​​.

Solar Screen: 

Solar screens are designed for energy efficiency and block a significant percentage of the sun's UV rays and light, reducing interior temperatures. They offer good visibility, insect protection, and varying degrees of sun protection based on their strength. Solar screens are commonly used in window screens, sliding screen doors, and porch enclosures​​.

AllergyGuard Screen: 

This screen features a unique filtering technology that blocks pollen, pollution, and other allergens, allowing for improved air quality inside the home. It is thinner than standard screens, offers insect protection, and blocks significant UV light. AllergyGuard screens are versatile but may affect visibility due to their filtering structure​​.

Brite Bronze Screen:

Made from copper and zinc, this screen mesh is rust- and corrosion-resistant, making it ideal for vintage buildings or coastal homes. It offers pest control and adds an elegant look to the home. Brite's bronze screen weathers to a dark color over time and coordinates well with other copper architectural elements​.

No-See-Um Screen: 

This tightly woven screen is designed to keep out tiny insects and is suitable for window, sliding, and porch panels. Its tight weave offers added strength and durability, making it ideal for pool, porch, and patio enclosures​​.

Stainless steel screen:

Known for its durability and security, the stainless steel screen is weather- and pet-resistant. It's suitable for coastal homes and offers enhanced window safety. Stainless steel screens are available in various colors and frame profiles, providing good visibility while being strong enough to stop glass breakage from external impacts.​

Final Recommendation

After a comprehensive analysis, it is clear that fiberglass mesh offers superior performance and durability compared to polyester mesh. With its exceptional strength, resistance to environmental factors, and versatile application options, fiberglass mesh emerges as the preferred choice for demanding projects. Its longevity, fire resistance, and excellent structural integrity make it an ideal reinforcement material.

While polyester mesh has its own advantages and is suitable for specific applications, it may not match the resilience and longevity of fiberglass mesh in rigorous environments. Ultimately, the choice between the two depends on the specific requirements of the project and the level of performance needed.

Whether it's reinforcing concrete structures, enhancing windows and doors, or embarking on construction projects, fiberglass mesh proves to be a reliable and efficient choice. Consider the unique characteristics and benefits of fiberglass mesh to make an informed decision and ensure the success of your project.

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