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Are HDPE sheet and Homopolymer Acetal Sheet The Same Materials?

Are HDPE sheet and Homopolymer Acetal Sheet The Same Materials?

Is HDPE Sheet and Acetal Homopolymer Sheet the same?

Here is another popular question asked by our clients. Is HDPE the same as Acetal Copolymer  / Delrin Acetal Homopolymer?
No, they are two totally different materials. Although the natural color of both is a milky white to opaque white, and they do look a bit similar, they are not. (HDPE is milky white to almost translucent depending on thickness, and the Acetal materials are a more opaque white to slightly milky – once again depending on thickness . See picture below of .500″ thick samples of HDPE and Acetal sheets)HDPE compared to Delrin Acetal Homopolymer sheet

HDPE and Acetal – Some Differences

The HDPE sheet and rod is a softer material, and is commonly known for its FDA certification and used in numerous food applications, such as: one gallon milk jugs, cutting boards, colored water glasses/cups, and many, many more. While it can be machined, because it is a bit softer and lighter, the tolerances it can be machined to are not very tight. It is not bondable, so it makes a great non-stick surface for sticky foods and adhesives.


The Acetal Copolymer and the premium Delrin® Acetal Homopolymer also have FDA certification, and are used heavily in the food processing industry. This material is a more mechanical material and is used in bearing and wear applications, cams, feeder screws, etc. This material is can be machined to tight tolerances, and will wear for long periods without lubrication. Due to its exceptional wear properties, it is not bondable, thus requiring mechanical fastening or threads to assemble. It has a very low water absorption, and you will find it in your toilet tank as the white moving parts in the filler mechanism. It is an extremely popular material for machinists, as it works much like soft brass.


While HDPE Sheet and Acetal Sheet look similar, they perform quite a bit differently.

While both materials are FDA approved, are machinable and can be used to make rigid wear resistant parts, they are two different resins and have drastically different physical properties. Another major difference is in the weight of these items, HDPE sheet and rod material weighs about 35% less than the Acetal sheet and rod material. Please check the data sheets for more information to assist in proper material selection. Acetal Data Sheet and HDPE Sheet Data

Acetal is commonly known as: Delrin Homopolymer Acetal, Tecaform AH,Ensital, Unital, Pomalux, Ultraform and many more.

HDPE is also known as: Ultraethylux, Densetec, Polystone G, Fortiflex, Versadur, Hostalen, and many more.

Contact us for more details on the HDPE and Acetal families of plastic materials, e-mail us or call 866-832-9315
Topic: HDPE sheet and Delrin Sheet (Acetal Sheet)

Plaskolite Tuffak and Westlake Polycarbonate Sheet, Sheets, Plate and Panels

Plaskolite Tuffak and Westlake Polycarbonate Sheet, Sheets, Plate and Panels

Things you should know about Polycarbonate Sheet, Sheets and Panels

A common misconception is that ‘all polycarbonate sheets are the same’. This is not true, as a matter of fact, it is far from a fact. While most manufacturers of polycarbonate sheets start with a similar base resin, this is where the similarities normally stop. Most polycarbonate sheet extruders run a base material far different from what the standard has been for the last 30 years. Most polycarbonate sheet is now made without the flame rating it had in the past. Polycarbonate Sheets are sometimes called ‘polycarbonate panels’ or ‘polycarbonate plates’, they are still made from the same high quality resins. One of the best known manufacturers of Polycarbonate resins and sheets is Sabic Polymers®, the manufacturers of Lexan® resin and Lexan® Sheet products. Over the last several years, Sabic has quietly discontinued the UL ratings on their Polycarbonate.

Industrial Plastic Supply And Tuffak GP (formerly Makrolon GP)Bayer MaterialScience, sold to Covestro and now purchased by Plaskolite

For more than 30 years, Industrial Plastic Supply has relied on the high quality Polycarbonate Sheets produced by Sheffield, now part of Plaskolite (formerly Covestro and Bayer MaterialScience). Plaskolite produces a crystal clear, ultra high impact strength polycarbonate resin, this Makrolon resin is the finest in the industry. Plaskolite has also chosen to continue to produce this high quality material in general purpose, and the Tuffak GP meets the UL 94 V-0 rating, the only supplier to continue this expensive, but extremely valuable service. Take a moment and look at your requirements, see if perhaps somewhere on the blue print is a note that states your polycarbonate material needs to be UL 94 V-0 approved or rated. If so, Tuffak GP is your only and best choice!

How is Plaskolite Tuffak GP Polycarbonate available

We stock Plaskolite (formerly Covestro – Bayer MaterialScience) Tuffak GP in flat panels, considered Polycarbonate Sheet or as Polycarbonate Sheets. We can cut theses sheet Polycarbonate materials to strip or strips, blocks, or just a cut to size piece. At Industrial Plastic Supply we have stocked large quantities of these materials, and continue to keep Tuffak GP (formerly Makrolon GP) and Tuffak FI (formerly Makrolon FI) sheets in stock. With a wide range of thicknesses ( .030″ – .500″ thick) and sheet sizes of 48″ X 96″, 60″ X 60″ and 72″ X 96″ as standard in .118″ – .500″, we can fill all your requirements.

Why you should use Plaskolite Tuffak Polycarbonate Sheet

Superior clarity, quality, surface finish, flame retardant and full USA factory technical assistance are just a few reasons. Buying polycarbonate sheets imported from somewhere half way around the globe, from anTransparent Polycarbonate Sheet and Plate unknown manufacturer with little or no technical support can be very risky. Plaskolite (formerly Covestro/Sheffield) manufacturers this premium quality polycarbonate sheet right here in the good old USA, in Sheffield, Massachusetts. They produce this crystal clear sheet on the latest and most technologically advanced extruders available, and have several warehouses for us to get material quickly for you. Why settle for an unknown? Can you afford to ‘try’ the other guys? Step up to the finest quality, and yet still competitively priced polycarbonate sheet, get Plaskolite Tuffak GP Polycarbonate Sheet(formerly Covestro Makrolon GP)  for your next project. Industrial Plastic Supply also carries the Westlake Zelux M Polycarbonate Sheet and Zelux W Polycarbonate Plate. The Zelux M is a machine grade Polycarbonate Plate from .375″ – 4″ thick sheet, and the Zelux W is a clear – Window Grade thick Polycarbonate Plate in the same thickness range. Contact us for more information on this thicker material. We also supply other manufacturers grades of Polycarbonate Plate, including, but not limited to: Ensinger Plastics, Polymer Industries (formerly Nytef Plastics), Roechling Plastics and more. Contact us for more information or technical assistance on Polycarbonate or any other quality plastic sheet, rod or tube. Call us at 866-832-9315 or send us a quick note here.

Topic: Polycarbonate Sheet and Rod Materials



PVC Sheet and Sheets, Rigid Vinyl, CPVC and FM4910 Plastic Materials

PVC Sheet and Sheets, Rigid Vinyl, CPVC and FM4910 Plastic Materials

PVC Sheet and Rods

(Rigid Vinyl and CPVC)

Polyvinyl chloride (PVC) has shown its versatility and durability for decades. Its use in piping, sprinkler systems, the construction industry and other areas has made it a popular commodity. The industrial-grade PVC sheet has numerous applications in the manufacturing area. Its low cost, workability, easy bonding, corrosion and weather resistance make it an all-round choice of industry.

PVC is Easy To Work With

Regardless of the application, working the PVC sheet is easy and cost-effective using simple tools that are common in other applications such as wood and steel. The chemical composition of the PVC sheet makes edging and machining simple and straightforward, and usually makes cooling unnecessary. However, when cooling is needed, compressed air, water or other liquids can quickly cool the material. Industrial PVC can be shaped and formed by:Large PVC part machined from PVC Rod
  • Saws
  • Drills (Hand-held or drill presses)
  • Routers
  • Punch machines
  • Standard CNC Equipment

It is also easily sealed and bonded to itself or using common industrial adhesives. The easy working and bonding of PVC sheeting make it an excellent choice for use in manufacturing and industrial applications. Couple that with its relative low cost and ability to use common tooling methods and PVC is an indispensable choice, and can replace more expensive materials such as: ABS, Acetal, Nylon and many more.

Several PVC Grades Available

PVC is available in several grades. The most common is the Type 1 Gray PVC – the standard commercial grade PVC for machining, bonding and painting. CPVC (Chlorinated Polyvinyl Chloride) is also available, and sometimes called Corzan® or Lam 2000®, and is a higher continuous temperature resistant material. The CPVC is normally a blue tinted clear color, and is also available in a FM4910 approved grade. We also supply the Type 2 PVC which is used for improved impact strength applications. This Type 2 material is available in a White or Light Gray color.

PVC Sheet Comes In Standard Sizing

Storage and transport of PVC is also an advantage. Its 48″ x 96″ size makes it a uniform size with plywood and other building products. The range of thickness is: .062″ – 3″ thick and thicker. There is no need for special storage or handling equipment. Common storage areas that can store drywall, plywood or other standard building materials can easily store these sheets. Forklifts and existing conveyor systems never need retrofits to handle the PVC.

DurabilitySimona PVC Sheet and Rod

Finished products using PVC sheets are long-lasting. The material is highly impact resistant, durable in extreme temperature swings, weather and corrosion resistant. Its use for storage of corrosive chemicals in extreme conditions make it an indispensable material for chemical coatings and other storage containers.

Adaptable

The ease of bonding and shaping are just one of the best features of industrial PVC sheeting. It also accepts painting and screen printing. Materials such as wood, other plastics, fabrics and paper can be bonded to the surface to enhance the aesthetic value of whatever is created. Coatings such as vinyl or acrylic lacquers can be used to turn the object into attractive household items. Scratches or etchings on the surface of the raw material are easily removed using fine sanding and buffing equipment. The versatility of PVC in standard sheets makes this product an excellent choice for virtually any type of machining and manufacturing application. For more information on the impact and corrosion resistance properties of these sheets, visit: Industrial Plastic Supply for PVC Sheet. Find out about all the qualities that make using these standardized sheets an attractive choice for industrial use. For information on this or any other plastic sheet, slab, rod or tube product – call us at: 866-832-9315 or click here to send us a request.

Topic: PVC Sheet and Rod

Nylon 6, Nylon 6/6 and Nylon 6/12 – What is the best Nylon rod or sheet to use

Nylon 6, Nylon 6/6 and Nylon 6/12 – What is the best Nylon rod or sheet to use

Nylon® Rod and Sheet (Polyamide) Grades available

The Nylon® Family of plastics are all very tough, strong, machine well, and have excellent wear properties. Nylon is a very popular plastic material, and is found in numerous applications. One of the largest usages is the production of household carpeting because of the excellent wear resistance. Nylon frequently replaces materials such as UHMW, PET, Acetal Copolymer – Acetal Homopolymer, and ABS. It will outwear most plastics and is self lubricating.

The wide variety of types and colors is one of the largest in the plastic industry.Common uses for Nylon Plastic materials

Nylon® Type 6/6 Rod, Sheet and Plate

The extruded Nylon 6/6 (Nylon Rod, Nylon Sheets and NylonTubes) material (aka: Polyhexamethylene Adiptimide) is available as Natural (tan – straw), Black, Glass filled (medium tan) and a molybdenum disulphide filled which is very dark gray. The most common size range for the extruded Nylon 6/6 is .125″ – 4.0″ diameter rod, and .125″ – 4.0″ thick sheet. The thicker materials should be cast due to cost and stress issues. For addition details on the Nylon Rod and Sheet 6/6 – see the data sheet.

Nylon Type 6 Cast Polycaprolactam

The cast Nylon type 6 has almost limitless possibilities. Many colors are available in Cast Nylon, the natural color, black, blue, dark gray (normally molybdenum disulphide filled again), green and many more. Sometimes the color is determined by the additive (oil filled) or by industry. Because of its relative ease of manufacture, many companies prefer to get their Nylon in a special color to help ‘brand’ their parts.

Cast Type 6 Polyamide can be made in Nylon rod from about 1.25″ diameter to almost any size. Nylon sheet normally starts at about .75″ thickness, and

Large Cast Nylon Type 6 Rod

Cast Nylon Type 6 Rod – 26″ OD X 8.0″ Thick

once again, can be made to almost any thickness. In addition to standard rod and plate, other sizes and shapes can be cast from Nylon Type 6 – ie. discs, tubes, near net shapes, large profiles, etc. The only limitations are how much money you have, and the size of the truck to get it to you! We have had cast very large blocks (11″ X 11″ X 48″ solid), sheaves up to 66″ OD, large tubes 36″OD X 12″ ID X 14″ long, and many more massive Nylon Cast parts.

Nylon 6/12 -Low Moisture Absorption

The claim to fame for the Nylon Type 6/12 is the low moisture absorption of the material. This grade of Nylon Sheet and Nylon rod is more stable that the type 6 or 6/6, and with the lower water absorption, this resin can handle a wider range of environments. Our manufacturer partners can run this as an Extruded Nylon Rod or Nylon sheet item or as a Cast Nylon Rod item. This opens the door to a wide range of sizes and shapes. This material exhibits most of the same properties of the Nylon 6/6 and Cast Type 6, with some slight improvements in key properties.

Filled Grades of Nylon

Because of the processing of Cast Nylon, many additives can be mixed into the material. The most common are: glass filled, oil filled, Kevlar fiber filled (Hydlar Z) and the molybdenum disulphide (M0S2). In addition, other fills and colorants (pigments) can be added to assist in manufacture or processing.

Common specifications for Nylon are: L-P-410, ASTM D-4066, L-P-395C, Mil-M-20693B Comp A, Ty I, IA, II and III, Mil-M-20693B Comp B, Ty 4, Mil-P-17091B Type 1, and Mil-P-46060, PA0613, ASTM D-5989 S-PA0511, and more.

Before buying your next big chunk of Nylon, contact us for information on the benefits of a filled  or near net-shape Cast Nylon part.

Contact us with your specifications, we look forward to assisting you.

Email us with questions or comments, or call us at 866-832-9315

Topic: Nylon Rod and Sheet

Is Tuffak Polycarbonate The Strongest Plastic in Sheets?

Is Tuffak Polycarbonate The Strongest Plastic in Sheets?

What is the Strongest Plastic – Polycarbonate Sheet?

Many plastics are durable and have good impact strength. Acetal Copolymer – Acetal Homopolymer for example is a very durable and strong material, but compared to some other materials the impact strength is lower. The Acetal  is the best machining plastic around, it is used to make long lasting and good wearing parts for machines. Another great plastic that holds up to wear and tear is UHMW. With its high molecular weight and low friction resistance is ideal to take abuse over long periods of time. Plaskolite Tuffak Polycarbonate sheet for riot shields

However, one of the strongest materials in the plastic family is Polycarbonate. Commonly referred to Lexan® (SABIC) or Makrolon® (Bayer) Polycarbonate Sheets; Polycarbonate is by far one of the strongest (highest impact resistant) ­­­­­plastic materials, and is warranted against breakage. With its high impact strength, it is ideal for jobs were the ability to absorb abuse is a factor and in some cases may even need to save lives. A common material for high impact is Polycarbonate Sheet and Plate, but amazingly also Polycarbonate Rod.

Polycarbonate Sheets considered ‘unbreakable’.

Polycarbonate sheet is a valuable plastic due to its impact strength, temperature resistance and wide range of uses. It is commonly confused with Acrylic or Plexiglass which has similar properties but Polycarbonate is 25 times stronger and has a wider temperature range. Acrylic is better used for display purposes and is a brittle material. Polycarbonate is so strong that you can drill or hammer a nail right through it without breaking the material. It also can undergo large deformations without breaking while Acrylic cannot. Polycarbonate also can be used for electrical applications because it is a great insulator. It also has great safety properties due to it being flame retardant and because it has good heat resistance. Another way Polycarbonate exhibits its safety properties is through bullet resistant glass. Polycarbonate is the most commonly used material for bullet resistant glass, riot shields and face masks. In these situations, the Polycarbonate has a very high impact strength which is invaluable. It protects and saves lives and is able to stand up to abuse in dangerous situations.

Polycarbonate Has Many UsesTuffak Polycarbonate Sheet from Plaskolite

From audio CDs to Blu-ray discs, airplane canopies to protective eye gear, Polycarbonate is a great thermoplastic (a material that can be formed and returned to its original shape) material for many different applications. Because of its impact strength and wide range of uses, Polycarbonate makes an ideal material for those who need peace of mind when designing or fabricating and need it to hold up to abuse and be virtually unbreakable. Polycarbonate is one of the toughest plastic materials around and everyday new products are being made from it. Whether using it for electrical, optical or for its impact properties, Polycarbonate is an ideal choice for many plastic needs.

Polycarbonate sheet (Makrolon) is available from .032″ – .500″ thick

Polycarbonate Plate, Slab, Block is available up to 4.0″ thick

Polycarbonate Rods are available from .250″ – over 8″ diameter.

More information on the UL approval ratings of Polycarbonate Sheets Here.

Not all Polycarbonate Sheet or Plate meet all approval ratings. Zelux Polycarbonate Plate is available in a machine grade and an optical grade. Zelux Polycarbonate Rod is also available – as a machine grade rod – not optical.

Typical Polycarbonate Resin Properties:

General Property ASTM Test Typical Value
Specific Gravity D792 1.2
Tensile Strength Yield D638 8,900 – 9,000
Tensile Modulus D638 340,000
Izod Impact – Notched D256 12.0-16.0
Hardness – Rockwell D785 M70
Deflection Temp @ 264psi D648 270
Deflection Temp @ 66 psi D648 280
Co. Thermal Expansion D696 3.7X10-5

We stock a large variety of thickness and sheet sizes in Makrolon GP sheet. For more information on this or other plastic sheets, please call us at 866-832-9315 or click here to contact us.

Topic: Polycarbonate Sheet and Plate

Natural and White Polypropylene Sheet and Sheets

Natural and White Polypropylene Sheet and Sheets

Polypropylene Sheet and Sheets come in Natural and WhiteWhite Polypropylene for welded wet bench in Semiconductor chip manufacturing

Let’s start by clarifying what Natural and White means. The natural color of Polypropylene is a translucent straw color, not yellow – not white, more of a very lite translucent – almost transparent beige. The white color is a bright white with a slight blue tint, or blue white. This white color is opaque, and is a white color that blends well with other materials. Polypropylene sheet is also available in the color Black.

Polypropylene sheet materials are available in an opaque black color as well. There is also a grade of Polypropylene sheets that carries a FR – UL 94 V-0 rating. When fabricating a ‘wet bench’ for the electronic industry, the new requirement is FM4910. This new specification is from Factory Mutual Insurance, and the requirements are very stringent. The purpose of this specification is that the FM4910 means it won’t burn, and will put off no toxic fumes or excessive smoke.

This rigid plastic sheet can be cut with standard cutting tools, drilled, routed, machined and processed easily. Clean and sharp tools will provide a clean cut, and occasionally will produce stringy burrs that are easy to remove with standard deburring tools. It fabricates very much like HDPE (High Density Polyethylene Sheet), and has many similar properties. The chemical resistance of Polypropylene approaches the excellent resistance of Dupont PTFE Sheet.

Polypropylene sheet materials have excellent chemical resistance

The main claim to fame for polypropylene in sheet is the excellent chemical resistance. This material is used extensively in the manufacture of chemical tanks. This chemical resistance means also that it can not be bonded together (glues and cements peel right off!), and thus it must be ‘welded’ together for fabrication. The preferred method of welding is a hot air welder – which supplies a fine stream of very hot air on the exact area that you may wish to weld together. This weld, when done properly will yield a very strong bond, and will enable a water tight tank or box to be fabricated.

Large 14" diameter Natural Polypropylene rods

14 inch Natural Polypropylene Rod produced by Gehr Plastics, the largest domestic plastic rod currently in production.

This great building block material can be used in numerous industrial and chemical type applications. The list of great properties is extensive, here are a few of the highlights:

  • Self Lubricating and Low Co-Efficient of Friction
  • High Chemical Resistance
  • Abrasion, Moisture and Electrical Resistance
  • Stiffness, Rigidity, or Cut Resistance
  • Low Specific Gravity (Floats in Water)

Polypropylene sheet and sheeting provide years of use, and can be cleaned with most chemical cleaners. Sheets are available in thicknesses ranging from .032″ – 2.0+ thick, and standard sheet sizes are 48″ X 96″ and 48″ X 120″, plus other sizes can be special run.

Contact us for availability of your Polypropylene sheets, rod and yes, even tubes. We are waiting your e-mail inquiry or call us at: 866-832-9315.
Topic: Polypropylene Sheet Fabrication