Is Lexan® the same as Makrolon® or Polycarbonate?

The short answer is no, are they very similar, yes. The reason is that both Lexan® and Makrolon® are brand names, along with Hyzod®, Cyrolon®, Zelux®, Paltuf®, Tuffak®, Ensicar®, Unicar®, Texin®, Apex® and many more. Lexan® is a brand name for SABIC (Saudi Basic Industries Corporation) which acquired the entire General Electric Plastics division several years ago. Makrolon® (formerly Hyzod®) is a trade name for Covestro (formerly Bayer MaterialSciences).

These materials are all Polycarbonate which is a very tough, high impact plastic material. The base resins are very similar, however, the end product varies quite a bit depending on the manufacturer. The Covestro Bayer Makrolon® GP-V material does meet the UL 94 V-0 flame retardant certification (at .220″ thick), and the Makrolon® GP is UL 94 HB rated.

How do I tell the difference between Lexan® and Makrolon®?

Bayer MaterialScience now Covestro

It would be impossible to tell the difference between brands by just looking, unless it still has the masking on, it would take some testing. The majority of both brands of materials are available in a very clear, UV stabilized glazing grade and look identical to the naked eye. This material is excellent for replacing window glass and is virtually unbreakable.

 

Industrial Plastic Supply stocks the Covestro (Bayer) Makrolon® GP Polycarbonate materials in stock and ready for shipment. We have chosen to carry the Covestro Makrolon® Polycarbonate because of its superior quality, physical properties and ratings. You will find these materials available as sheet and rod here. If you have further questions, or would like to see the data sheet on Makrolon® Polycarbonate and/or Lexan® Polycarbonate for comparison, please give us a call: 866-832-9315 or email: request@indplastic.com

This post is part of our effort to answer as many questions for you as possible, and to assist you in choosing the proper material for your applications, this is another very popular question we hear.

Yes, Lexan® and Makrolon® are both Polycarbonate materials. And we believe that the Covestro Makrolon® is the best Polycarbonate sheet available in the market place.

Google+ – Industrial Plastic Supply, Inc.

“What is a good material for vacuum forming?”


This is a
popular question received from clients. This question has a rather long answer. Most Thermoplastic materials are thermo-formable, and thus vacuum forming compatible. Some of the most common and easier materials for forming are listed below.

Common Vacuum Forming Materials:Vacuum Formed PETG Part

Each plastic material has a variety of different properties, and they form at different temperatures. The Acrylic, PETG and Polycarbonate sheets are normally clear (can be special ordered in colors), however the Polycarbonate may have to be heat dried prior to the vacuum forming temperature phase (depending on thickness).
ABS and HIS both form very well, and are normally White or Black. The ABS normally has a fine texture called Hair Cell on the primary surface, the Styrene is smooth on two sides. On a special basis Styrene and ABS can be run in almost any thickness up to .375″ thick, and in almost any color (minimums apply) and in a huge range of custom run sheet sizes.
While many other materials may be available for special applications and with various improved properties, these are the most commonly available and used materials.
Some of the important factors in choosing a material for your vacuum forming project would be: clarity, strength of finished part, temperature, depth of draw, UV resistance, Flame Retardant Rating, thickness and size range.
Vacuum Forming Mold 300x183 Looking For Vacuum Forming (Formable) PlasticsChocolate Molds 300x200 Looking For Vacuum Forming (Formable) Plastics

Large parts can be produced using this process, for example – Hot Tubs and Pick Up Truck Bed Liners. Also vacuum forming is used to produce very small parts like chocolate molds and numerous packaging applications.

Most vacuum formers started in their garage (or kitchen). A simple vacuum forming ‘machine’ can be produced at very low cost using 2 X 4 wood, peg board, and your shop vac. Obviously this is not the way the above hot tub was formed, but the process is rather simple and is much more an art than a science. We have seen several YouTube videos showing entry level – DIY style vacuum forming machines.  Most use the kitchen oven as the heat source and are used to make small chocolate molds, wax molds, hobby parts and more. Many materials can be used in this simple process, and we are happy to assist you with your basic questions of the vacuum forming process.
There are also a wide range of commercial thermoforming machines (see video) available, in almost unlimited range of sizes.

There is a wide array of materials that can be used, and they have different properties – no one material meets all your needs. Contact us for details on your vacuum forming requirements or with question.

Google+ – Hayden Hess