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Category Archive: Custom Stamping

Using PTFE & Nylon 6 in Plumbing Applications

When choosing the right materials for plumbing applications, water resistance and durability are paramount. While metals have traditionally been used for plumbing components, there are non-metallic alternatives capable of the same level of performance as metals, but are often less expensive. Nylon 6 and PTFE are just two examples.

Nylon 6

Nylon 6 is often used for bearings or as wear material. The material is characterized by good wear resistance, high tensile strength, and by its elasticity. The high strength and durability make it an ideal material for replacing metals.

Unlike most metals, Nylon 6 can withstand long term exposure to alkalis, dilute acids, and oxidizing agents.

On the other hand, its elasticity makes it ideal of replacing various plastics, rubbers, and wood. Nylon 6 also has high impact, heat distortion, abrasion, and vibration resistance.

Page 15 of our Non-Metallic Material Selection & Properties Guide has more details on the mechanical properties of Nylon 6.

Bathroom faucet

Plumbing Applications

Nylon 6 is a lightweight alternative to metals in plumbing applications. As moisture absorption occurs, the impact strength and energy absorption characteristics of Nylon 6 improve; however, the tensile strength and the stiffness of the material decrease, and some elongation occurs. If these side effects are properly accounted for, Nylon 6 can be used safely for plumbing applications. Furthermore, Nylon 6 can be combined with glass fibers, beads, or carbon fibers to improve its mechanical and thermal

performance. Another thing to keep in mind is that Nylon 6 is softer than one of its counterparts, Nylon 6/6, so Nylon 6 seals better for a male-to-female connection.

Some common uses of Nylon 6 would be in sprinkler heads, showerheads and faucets.

Our Nylon Washers might be ideal for your project. Visit our product information page to learn more.

PTFE

PTFE is a fluorocarbon-based polymer with very high chemical resistance, a large operating temperature range, and high resistance to weathering. Any type of filler that is added to PTFE greatly enhances its mechanical properties. The material is a good thermal and electrical insulator, with a low coefficient of friction; because of these properties, it is often used in brake systems, plumbing applications, HVAC systems, electronics, and many more.

Page 26 of our Non-Metallic Material Selection & Properties Guide has more details on the mechanical properties of PTFE.

Plumbing Applications

PTFE is ideal for plumbing applications because it is completely impermeable to water or water-containing substances and oil or oil-containing substances. In fact, thread seal tape (also known as plumber’s tape), which is used to seal pipe threads, is made from PTFE. Also, due to PTFE’s ability to withstand high temperatures, utilizing PTFE washers for hot water applications would be ideal then you do not have to worry about a washer deforming or melting and causing leaks. Some common applications where PTFE can be used would be sprinkler heads and faucets.

Our Round Flat PTFE Washers are ideal for providing secure seals in plumbing applications.

Want to Learn More?

We would love to hear from you. Contact us today to learn more about our non-metallic solutions for plumbing applications.

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PTFE: A Versatile Material

PTFE is used in many industrial and commercial applications, including cabling, pharmaceutical manufacturing, and semiconductor manufacturing. PTFE (Polytetrafluoroethylene) resin is a paraffin polymer with some or all of the hydrogen atoms replaced with fluorine atoms.

It is classified as a thermoplastic and has a low coefficient of friction, excellent insulating properties, and is chemically inert (to most substances) because of the strength of the carbon-fluorine bonds. PTFE has the third lowest coefficient of friction of all known solid materials – even a gecko cannot stick to it.

ptfe washers

Versatility 

PTFE is well known for its versatility; it can withstand very high temperatures and has excellent anti-stick properties (which is why it is so often used to coat pots and pans). It was discovered in 1938 by Dr. Roy J. Plunkett and later commercialized in 1946 by DuPont.

Since then, it has been applied to the chemical industry for vessel linings, seals, spacers, gaskets, and washers; the electrical industry for insulators, tubing, and capacitors; and is FDA-approved for the pharmaceutical, food & beverage, and cosmetic industries. And here, at New Process Fibre, we use PTFE to create many parts, especially PTFE Washers.

Range of Applications

The sheer range of suitable applications for PTFE demonstrates the versatility of the material. PTFE fluoroplastic resins continue to be used in a number of applications, including consumer electronics, tubing for flue gas heat exchangers, food processing equipment, industrial coatings, pharmaceutical processing equipment, and are added to inks, molded gears, seals, and lubricants for added resistance to wear and temperature.

PTFE is a solid at room temperature with a density of 2200 kg/m3. Its melting point is 600 K and it maintains its high strength, toughness, and self-lubrication down to a temperature of 5 K.

As previously mentioned, PTFE is unreactive with most chemicals; only alkali metals or high-temperature aluminum, magnesium, and fluorinating agents will affect PTFE.

New Process and PTFE

New Process Fibre uses PTFE to many parts such as, PTFE Washers, PTFE Gaskets, and more. Our PTFE products have excellent chemical resistance and prevent the intrusion of water or oils into your assembly. We can also create custom designs for any of these parts based on your design specifications. Contact us to request a quote for your PTFE part today.


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Nylon: The Multi-Faceted Non-Metallic Material

When most people think of Nylon, chances are that they think of the type of fabric that you might find in a t-shirt or a pair of gym shorts.

The truth is, however, that nylon is a strong and highly versatile material. It is used in the commercial, industrial, and specialty fields, including the medical industry, plumbing, fire safety sprinkler systems, and many others.

We at New Process Fibre have embraced the material. We use four different types of nylon, mixed and extruded in-house to ensure the highest quality, to produce a robust line of versatile products. New Process Fibre particularly specializes in Nylon washers.

Types of Nylonnylon washers

We use custom dies—tooled in house—to stamp our products out of four primary types of Nylon. They all have unique properties and benefits.

Nylon 6 is the type found in thread and fabric, but it is also an excellent replacement for metals such as brass, steel, and aluminum. This makes it an excellent application for gears, spacers, washers, and plumbing applications. Nylon 6 has a typical tensile strength of 12,000 psi, flexural strength of 16,000 psi, and is highly resistant to heat, abrasion, water, wear, and vibration.

MDS (Molybdenum Disulfide) filled Nylon is a type of Nylon 6. Design for food grade applications, it is 3A-Dairy, FDA, and USDA compliant. Of all the grades of nylon 6, MDS filled Nylon is the hardest and strongest, which also makes it well suited to applications in wheels, gears, and bearings.

Nylon 6/6 is high viscosity Nylon. Its mechanical strength and high temperature performance are exceptional. It also has electrical and flammability properties that make it uniquely suitable for chemical and electrical applications.

Nylatron®, trademarked by Quadrant, is a blend of Nylon 6/6 and Molybdenum Disulfide. This addition increases the material’s mechanical and thermal properties. Self-lubricating and with a very low surface friction, Nylatron® is perfect for uses that preclude the application of lubricant for operational, safety, or practical reasons.

Why Choose New Process Fibre?

We at New Process Fibre are the most trusted supplier for the largest users of nylon washers for across the globe. In business for almost 90 years, we have built extensive expertise.

Nylon 6, Nylon 6/6, MDS filled Nylon, and Nylatron® are sheet extruded in-house. With full control over raw materials, we are able to provide consistently high quality materials. We maintain a library of more than 8,000 washer dies and can custom tool new dies according to your designs.

With 75 active presses, capable of reaching 400 strokes per minute, stamping Nylon washers with New Process Fibre is cost effective for small batches and high volume orders alike. We can even customize the color of your washers.

For more information on New Process Fibre Nylon washers — including detailed specifications, customization options, quotes, and more — contact us today.

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Learn About the Benefits of Vulcanized Fibre

Advantages include electric insulation, corrosion resistance, and reliable machinability

Vulcanized fibre is at the heart of our operations here at New Process Fibre. Since our founding in 1927, it has been and remains a significant part of our business. We utilize vulcanized fibre for our stamped components and also offer it for sale in the form of sheets, roll, and coil stock.

What exactly, however, is vulcanized fibre? This blog post will explore some of the characteristics that make it ideal for a wide range of applications.

Introduction to Vulcanized FibreVulcanized-Fibre-2

Vulcanized fibre is a kind of laminated plastic made up of one sole ingredient—natural cellulose. As one of the first ever developed plastics, it is resilient and tough. It is also very lightweight, weighing even less than aluminum, and is more durable than leather and sturdier than most thermoplastics.

The material was developed in the late 19th century by submerging 100% cotton paper in an acid bath and running it through. It was then used to spur the growth of the automotive and electrical industries, as well as significantly contributing to a variety of applications in the modern railroads, textiles manufacturing, welding, and even sporting industries.

Vulcanized fibre is typically chosen because of its high mechanical strength, exceptional strength-to-weight ratio, lightweight, and good machinability that does not splinter, rip, or crack. The material is also resistant to most solvents and chemicals like oil and grease.


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Variety of Characteristics

There are five distinct grades in which you can find vulcanized fibre. These are:

  • Commercial grade—With a standard gray, red, white or black appearance, this grade is used in numerous applications like gaskets, end laminations, handles, gears, and washers.
  • Electrical grade—Historically known as “fish-paper,” this grade is dielectrically high gray appearance, composed of 100% cotton, and ideal for ground and layer insulation. This is well suited for applications which as end laminations in stators, from consumer hand tools to industrial drive motors.
  • Trunk fibre—This grade features durability, hardness, and resistance to abrasion. It is used in drum cases, surface steamer trunks, and skid and wear panels.
  • Bone fibre—This grade boasts exceptional hardness and density, making it ideal for use in tubing and tight machining, and to create products like the tips of pool cues and cut out fuses.
  • Wood laminating—This grade features toughness, high multi-directional torsion and tensile strength, and provides excellent strength and support for wood lamination applications, such as stabilizing and strengthening thin and exotic veneers.

Benefits with New Process Fibre

At New Process Fibre, we have almost a century of experience working with vulcanized fibre for a range of applications. Our expertise with the material translates to high reliability and quality in your final stamped product. We also provide access to high quality, durable, and flexible vulcanized fibre sheet, coil and roll stock for you to use in your own projects.

Contact us today to learn how we can provide you with the vulcanized fibre solution for the unique specifications of your project.

Common Material Options for Non-Metal Stamping

Engineers today know full well of the growing need for specialized and custom materials for stamping. As applications have become more specialized, so too have the materials and configurations available for non-metal stamped products.

With the great array of advancements being made across industries, new applications and processes are increasing the demand for alternatives to traditional metal stamped products. Along with this demand comes the need for new materials in fabrication procedures.

Here are some common options for materials to use in the manufacture of non-metal stamped products.

Vulcanized Fibre

Vulcanized fibre has a number of characteristics making it useful for various applications. It is useful in numerous industries due to its being composed of primarily natural cellulose.

Vulcanized fibre imaterial-guide-covers also beneficial as a primary or secondary material. It has good strength, high durability, and flexibility. It is easily formable and machinable without splintering or cracking, while also being lightweight and having high tensile strength.

Adding to its versatility is the fact that it is high resistance to solvents and chemicals like oil and grease. The five distinct available grades are commercial, electrical, trunk fibre, bone fibre, and wood laminating, each of which are used for a range of applications across industries.

Thermoplastics

The term “thermoplastics” is used to refer to any non-metallic polymer, or a plastic that will structurally change when subjected to pressure and high temperature. Thermoplastics become less solid and more gel-like at higher temperatures.

These characteristics make it more malleable and ideal for processes like injection molding, a cost-effective and fast process for high-value thermoplastic components. Along with light machining processes, thermoplastic components can be manufactured to be almost as precise as metal components, but faster and with better consistency.

Thermoset Plastics

Thermoset plastics, unlike thermoplastics, have a set strength profile that does not change with temperatures. They are primarily used in high heat applications, such as electrical equipment, insulation, appliances, and printing systems. They are handled similarly to metals and metal alloys during the manufacturing process.

Learn more in New Process Fibre’s Material Selection Guide

New Process Fibre has over 85 years of experience working with alternative methods for metal stamping. That is why we are proud to present our Non-Metallic Material Selection & Properties Guide. Inside, you will find comparison tables, computability charts, and much more detail about the materials presented here. Download your free copy today, and let us know now we can help you with your non-metal stamping needs.

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New Process Fibre’s Self Retaining Washers

Self Retaining WashersAt New Process Fibre we have extensive experience with stamping a variety of washers to meet the needs of our customers in a variety of applications. One particular specialty is our self retaining washers, which we stamp flat with protrusions coming out of the inside diameter to easily grip the screw. This ensures that once the washer is placed on the bolt or screw it will not fall back off. This is especially important in industries, such as the automotive sector that works with the screws upright and wants to make sure the washer stays affixed as it is screwed in.

Typically, we stamp these tabs with triangles or stars, but we can accommodate other designs as well and we can offer hex IDs as well as slit IDs that can offer a bit of give. Often we have customers that apply these self retaining washers as pre-assembled kits ready for installation in their particular application, which can help reduce costs.

At New Process Fibre we house a large selection of conventional and high-speed presses which allow us to offer quick turn around on your high or low volume order of self retaining washers. To learn more about our self retaining washers please visit our website or easily request a quote online.

DID YOU KNOW...

THERMOPLASTIC FORMULAS, SUCH AS NYLON AND TEFLONTM PTFE, PROVIDE A HIGH-PERFORMANCE, LOW-COST ALTERNATIVE TO THE TRADITIONAL METAL WASHERS, GASKETS,AND SPACERS?

Download Material Selection Guide:Nylon and TeflonTM PTFE

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Download Material Selection Guide

Additional Resources

Your Guide to Non-Metallics Download
Acetal Components Explained Download>