Polycarbonate and Acrylic: Clear Plastics with Clear Differences
Tuffak® Polycarbonate and Optix® Acrylic (PMMA) are two very similar looking plastics. Both are often bought as transparent sheets with similar smooth glossy surfaces, and are often used as tougher and more impact resistant alternatives for glass in industrial and consumer applications. These two materials can be found in windows, viewing panels, protective barriers, eye-wear, display cabinets, and similar applications. However, polycarbonate and acrylic actually have very different physical properties and resulting applications.
Polycarbonate: Industrial Grade Impact Resistance
Tuffak® Polycarbonate (manufactured by Plaskolite) is an amorphous thermoplastic material, meaning it has a low degree of crystallinity and a more random polymer chemical
High Impact – Break Resistant Polycarbonate
structure. This gives the plastic an interesting combination of physical and optical properties, such as transparency comparable to silicate glass and an exceptionally high impact and chemical resistance.
Its exceptional impact resistance has made this particular material popular for manufacturing in sheet form, a lot like sheet metal. It can be rolled, pressed, heated, and formed without cracking or breaking. Polycarbonate can be fabricated quickly and relatively inexpensively into shapes not possible with glass thanks to its chemical structure.
Polycarbonate is commonly used in protective applications, such as barriers and bullet-proof windows, ceiling panels, displays, and enclosures. Despite its impact resistance, polycarbonate tends to scratch easily, so it is not well-suited to displays and applications that require high aesthetics.
OPTIX® Acrylic (PMMA): Durability on Display
Quality American Made Acrylic Sheet
Acrylic, short for poly-methyl-methacrylate, (PMMA) can come in many forms, including a sheet material typically referred to as acrylic glass. Like polycarbonate, acrylic is an amorphous thermoplastic, though it features much better transparency. Tough and strong, yet acrylic impact resistance is not as high as that of polycarbonate.
Optix® Acrylic (manufactured by Plaskolite) offers a higher tensile strength and UV resistance than polycarbonate, as well as much better optical characteristics. Acrylic is also easy to clean and maintain, and is generally pretty easy to fabricate, so long as it’s masked for protection during handling. This, combined with being less expensive has made acrylic common in display and consumer applications.
There are many different applications for acrylic thanks to these properties, ranging from LEDs to displays to even consumer windows. Optix® Acrylic sheet can be found in shop displays and enclosures, ceiling skylights, media discs, and fiber optics, as the material is a lightweight and tougher alternative to glass.
Looking for a trusted supplier of Tuffak® Polycarbonate, OPTIX® PMMA, and other Performance Plastic materials?
Industrial Plastic Supply, Inc. is one of the largest and most experienced plastic suppliers in the world, with a vast inventory of premium Plaskolite Acrylic and Polycarbonate sheets. Our experienced and certified customer service team are available to assist you. Head over to our website to explore all of the materials that we carry and contact us today with any questions you may have, click here.
Polytetrafluoroethylene or as it’s better known ‘PTFE’ is a popular choice in hydraulics systems and components, being a non-stick surface and a highly durable material. However, since PTFE is made up of some of the strongest bonds in organic chemistry, this type of plastic has many different uses across a variety of industries.
Hydraulic Components and Sealing
The most common use for PTFE is for parts used in seals, gaskets and steam valves that are used to handle caustic fluids. The durability of this plastic has made it popular for a variety of hydraulic fittings like these as well, especially seals used in steam and high temperature applications. The rating for continuous temperature is 500 degrees F, while maintaining physical properties. Virgin PTFE sheets and rods are also excellent materials for wear and slide machined parts found in pumps and manifolds, having a non-stick surface that won’t experience nearly as much wear and tear as other materials.
Thermal Stability for Vehicle Engines
One of the major benefits of PTFE is its high thermal stability, which has made it popular for use in fuel hose linings, gaskets, seals, and other engine components. Its exceptionally long lifespan, high heat resistance and excellent water resistance makes PTFE an excellent choice for making parts such as wiper blades and other exterior components for vehicles.
High Resistance for Chemical Production and Processing
Virgin PTFE sheet in wide range of thickness
PTFE is a highly durable and corrosion resistant material, and so it has become a popular choice of material for a variety of chemical processing applications. It does not melt or erode under the extreme conditions often found in chemical plants, and can is often used to make components that transport corrosive chemicals and other materials.
Excellent Protection for Electronics
Another industry that often takes advantage of PTFE’s benefits is in the electronics manufacturing. PTFE is commonly used for insulation, semiconductor components, and circuit boards. It offers high quality insulation properties even under harsh conditions, and its electrical conductivity can be increased using fillers such as copper. PTFE has been successfully used in a wide range of different electronics components for many applications, from automobiles to aircraft, where the more delicate electronics components need to be able to survive high temperatures or highly corrosive environments.
Looking for a supplier of high quality PTFE?
Industrial Plastic Supply, Inc. has been a trusted, worldwide supplier of quality performance plastics, including PTFE, since 1975, and we have one of the largest inventories of American made plastic materials in the world. Check out our website to view our full product directory or to contact us with any questions you may have.
We have all heard the upset consumer angry about the ‘Cheap Plastic’, normally about a thin plastic bag or water bottle that just broke during normal use.
“I thought ALL Plastic Was A Just A Cheap Material?”
We do hear this question regularly. And, maybe, in years gone by Plastic was that Cheap material.
Back in the 50′s and 60′s, plastics were very inexpensive, and were very limited in types, grades and availability.
What caused this to change?
Plastics are primarily produced from Oil and several Oil by-products. As oil pricing has skyrocketed from the 50′s, so did the low end plastic material pricing.
In addition, a new generation of high tech, mechanical and engineering grades of plastic we developed. These performance plastics replace metals and other substrates in manufacturing. They out live and out perform most materials at a fraction of the cost of the material it replaces.
Isn’t Cheap better?
All materials are not designed to the same standard. This is true with plastics as well. Choosing the wrong plastic for a project can be a costly mistake. All engineering perimeters should be considered: strength, impact, sunlight, water absorption, electrical resistance, temperature range, etc. We’ve all witnessed the ‘cheap’ plastic kids toy that lasts but a couple of days, the clip or cover in your car breaks off, the inexpensive outdoor furniture and so on. These are examples of under designed or choosing a material for its resin cost, not its physical properties. Thus, no, cheaper is not better. Cost should be just one of your decision criteria. The overall ‘performance’ of the material you require will dictate the type, grade and overall cost of the material. We supply materials from very inexpensive to some that are very expensive. These price differences are based on the significant differences in many of today’s high performance plastic materials.
What Should You Do?
The answer is really quite easy. Ask.
Talk to one of our experienced ‘Plasticologists’ and tell them your requirements. You’re input, and a little time to answer some questions could save you enormous time and expense in your finished parts. All plastics are not created equal, and neither are all plastic suppliers. Give us a try, and take the guess-work out of choosing the right material for your job. Most Performance Plastic materials outlast other raw materials, even metals. Check the physical properties, and using the right material for the application, could mean your parts may last decades without needing maintenance or lubrication.
Some of our lower cost materials: HDPE, PVC, Styrene – are less expensive, but not cheap. Each with very specific strong points, and yes, weak areas as well. Contact us with any questions you may have about the best material for your project as ‘one size does not fit all’.
‘Cheap plastic’ is most likely not the best plastic for your application.
Ask Us, we are happy to guide you on your Performance Plastic Material search.
In a previous post, we explored the advantages of Sabic Ultem™, the trademarked name for a special type of high-performance plastic that is often the go-to choice for any industry in need of exceptional physical properties in a thermoplastic. With Ultem™ polyetherimide resins, this type of plastic can retain its mechanical properties even at extremely high temperatures, which is especially important in applications that require good structural integrity under harsh conditions–aerospace and automotive applications for example.
Why is ULTEM™ so popular?
This material is known for its excellent mechanical properties, dimensional stability, as well as chemical and temperature resistance. Because of these properties, Ultem™ has been used widely and with success in many different industries, such as aerospace, automotive, consumer goods, medical equipment, electronics, and industrial equipment. There are, however, a few disadvantages to keep in mind when deciding whether or not to use Ultem™ for your manufacturing project.
Sabic Ultem 1000 and 2300 sheet and rod
A few disadvantages of using ULTEM™
Also, the polyetherimide thermoplastic can be vulnerable to stress cracking if exposed to polar chlorinated solvents. This can restrict its use in certain applications.
In addition, while Ultem™ is a very high performance thermoplastic, it does tend to be more expensive compared to similar materials and can be difficult to process due to its high melting point and viscosity. For optimal results, you may need to use specialized equipment or work with someone specialized in working with this thermoplastic, which could drive up production costs even more. If the material is not properly controlled during manufacturing, Ultem™ plastic parts can experience surface defects or cracks as well as dimensional instability. If large amounts of material are removed during machining, parts should be annealed after production to prevent warp and twist. Proper quality control needs to be in place to avoid these problems.
Looking for a supplier of high performance thermoplastics?
Industrial Plastic Supply, Inc. has been supplying performance plastic sheet, rod, and tube since 1975, and specializes in wholesale Engineering Plastics, Mechanical Plastics, and High Performance Plastics for a wide range of industries. Check out our website to learn more!
Best Methods for Choosing a Quality Performance Plastic Sheet and Rod Supplier
Finding a plastic sheet supplier might seem like a monumental task with all the different suppliers out there – but there are a few ways that you can narrow down your choices.
Here are five key factors to consider when you’re looking for a quality supplier of plastic sheets.
1) Where do they source their plastic materials?
With many dozen manufacturers through out North America, and many more in far off lands, it is important to know who makes your material. Material sources from North America has been considered the premier quality in Performance Plastic materials. Not only is the quality of extruded or molded sheets and rods important, but also the long process of secondary annealing. This removes residual stress from the material, and this will produce a better finished part with reduced warp and twist and even center-line cracking. Not only should the materials look good, they must machine well without cracking. Quality matters.
2) Do they carry what you need?
This might seem straightforward, but it is one of the most important things to keep in mind, especially if you’re looking for large-scale products or highly specialized resins. Often, different plastic suppliers will specialize in resins with similar end uses as well, so it’s important that you find one that understands the requirements of your particular industry. Many suppliers are actually ‘brokers’ and don’t really have a warehouse with material ‘in stock’. Look for a supplier that has a wide variety of quality performance plastics in stock and ready for you to pick up.
3) Do they meet your quality standards?
Many plastic suppliers have to meet particular certifications and regulatory compliance standards, especially if they want to maintain a professional and accurate business. The bare minimum for a quality plastic sheet supplier is an updated ISO 9001 quality management system and ITAR compliance, but there are several other standards and material certifications available as well, such as ANSI and RoHS compliance, which ensure that the supplier does not sell or consume unethical products in the course of their business. Are the customer service staff members certified by an outside agency?
4) Don’t forget communication and customer service
Good communication is important in any supplier-customer relationship. A quality plastic sheet supplier will communicate professionally and quickly with you, and they will be transparent about their products, quality certifications and compliance, and their capabilities. Many suppliers have reviews or testimonials on their websites that you can read to get a better idea of their service–or you can contact them directly as well. The best customer service companies have trained staff, in the plastic industry one of the keys to a trained staff would be are they IAPD (International Association of Plastic Distribution) certified?
5) Balance quality and price
With all of the plastic suppliers out there, it’s important to find one that not only meets your standards of quality, but also offers you competitive pricing. Balancing the quality of the material you receive with the budget set out for it is an important task when choosing a plastic supplier. Sourcing all High Performance Plastic materials from North American manufactures helps to insure quality products, and at a competitive price. While not the cheapest, the quality of North American Performance Plastic is second to none!
Choose Industrial Plastic Supply, Inc. for your Performance Plastic needs
If you are looking for a quality plastic sheet supplier, then you should consider Industrial Plastic Supply, Inc. We have been in the business since 1975 and maintain a vast and varied inventory of performance plastic materials, all sourced from North American Manufacturers, and are proud of our trained customer service staff – all IAPD certified.
Industrial Plastic Supply, Inc. also Check out our website to learn more.
HDPE vs UHMW: When to Use High-Density Polyethylene
HDPE and UHMW are popular and well known types of plastics across many different industries for their reliability, so much so that many people have started to use them interchangeably. However, their uses don’t coin cide nearly as often as many think–HDPE has different qualities that lend well to different applications. While both materials are very light, with a density of .94 – which means they both float in water.
When best to use HDPE
High-Density Polyethylene or HDPE is known for its versatility and low moisture absorption, which result from its high-density chemical makeup. Its chemical composition also makes it highly chemical resistant, so it’s excellent for applications that involve moisture or mild chemicals.
HDPE is also very easy to machine and shape. As a result, it has been used successfully to make plastic lumber, milk jugs, containers, cutting boards, and many other products.
In addition to being easy to machine, HDPE sheet and rod are also relatively lightweight, and can be NSF and FDA compliant. This very durable material can not be glued or bonded, and thus must be heat welded together or attached with mechanical fasteners. HDPE is excellent for applications where reduced weight and low costs are paramount. This, combined with its easy machinability, allows HDPE to be cut, drilled, routed and shaped for many different end uses. Food cutting boards, piping, storage vessels, marine components, and many more benefit from HDPE. It’s also been successful in outdoor furniture, signage, playground equipment, structural tanks, food processing equipment, vacuum-formed parts, transfer boards, tank liners–and this is just a small number of its applications.
When not to use HDPE
While HDPE and UHMW have similar properties, they are often better suited to different tasks. Both plastics do have high impact resistance, but UHMW (Ultra-High Molecular Weight Polyethylene) performs better in applications where friction and constant impact are present. The UHMW molecular chain is much longer, thus giving UHMW the extreme wear resistance. This results in UHMW being used more often in functional components, like conveyor systems, concrete chute liners, mated parts, bumpers, and bearing applications. HDPE does not perform as well as UHMW under constant friction, making HDPE better for food processing surfaces, chemical resistant parts, decorative products, or components that will not experience constant friction. If a reduced friction application is needed, the use of UHMW with a coefficient of friction of just 0.08 (compared to HDPE with a coefficient of friction of 0.20) is much more suitable.
Find all your performance plastics at Industrial Plastic Supply
We are performance plastics experts, with a vast inventory available and the most experienced customer service team to offer our customers. Contact us today for more information about what we can do for you.
