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Torlon® Sheet - Natural 4203
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Torlon® Sheet - Natural 4203

Torlon® 4203 PAI | Cut-to-Size & Full Sheet | High-Strength Metal Replacement

Tips for measuring & cut-to-size policy »

How To Measure and Cut-To-Size Policy [X]


Cut-To-Size Items are Non-Returnable!

As per our Shipping and Returns Policy, custom cuts and fabricated parts are non-returnable. If you need an over- or undersized item, note it under "Comments" during Checkout. Cut-to-size orders have an acceptable cut tolerance of 1/8" (0.125"), so clarify if the adjustment is to be made on the (+) or (-) side of the saw blade. Please review our full return and shipping policy here.

Measure Twice, Cut Once

Since custom cuts and fabricated parts are non-refundable, be very careful while measuring your dimensions. As each cut is nominal, even the slightest miscalculation could be costly.

How to Use a Measuring Tape

Extend your tape measure several inches to find the 1 and 2 inch markers. In between the inch markers you’ll find 16 equally spaced tick marks.

Measure by counting the increments beyond the nearest inch. As the increments decrease, so does the length of the mark. For example, 1/2" has a bigger mark than 1/4" which has a bigger mark than 1/8". The smallest mark follows at 1/16". Please be aware that some measuring tapes may have even smaller increments.

Features of a Measuring Tape: Sliding End Hook

The sliding end hook is designed for two different types of measurements. An outside measurement (where the hook of the tape hangs over an edge), requires the hook to slide out a bit to account for the thickness of the material. When making an inside measurement (where the hook will push up against a surface), the clip slides in, again, accounting for its thickness. The measuring tape self-adjusts to guarantee an accurate measurement (as far as the tape is concerned).

Sanitizing Acrylic and Polycarbonate Sheet [X]


Acrylic and Polycarbonate Sneeze Guards and like products require special care while cleaning and disinfecting. To maintain the optical clarity of sneeze guards and other acrylic or polycarbonate items, use an acrylic or polycarbonate safe cleaner like Novus Plastic Polish #1, Brillianize Plastic Cleaner, or a mild soap solution.

Please reference the following compatible cleaners when DISINFECTING acrylic and polycarbonate items. The use of commonly available commercial alcohol or ammonia-based disinfectants may cause crazing and damage.

Compatible Polycarbonate Disinfectants:

• sBioMed Steriplex SD
• Safetec Surface Wipes
• Contec Healthcare Perodox RTU
• Contec Healthcare PS-911 EB Prostat Sterile Wipes

Compatible Acrylic Disinfectants:

• Pharmacy Grade Hydrogen Peroxide
• Household Bleach
• Isopropyl Alcohol (Water Diluted to 30% Strength)

[Download as a PDF]


Enter your dimensions and click recalculate:

Quantity:
 
 
Thickness:
 
inches
Width
 
inches
Length
 
inches
Price per sheet: $2,746.92
Full sheet size: 12" x 48"
Total Price: $2,746.92
Options:
Rounded/Chamfered Edges (45°): ($20)
Rounded Corners (in.):
#Holes Per Sheet ($2/hole) - Please upload your drawing:

Available hole sizes: 1/8”, 5/32”, 3/16”, 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 9/16”, 5/8”, 11/16”, 3/4”, 13/16”, 7/8”, 15/16”, & 1” increments
As low as $254/month with Credit Key

High-Strength PAI for Metal Replacement at Extreme Temperatures

Torlon® 4203 sheet is one of the highest-performing melt-processable thermoplastics, engineered to maintain its structural integrity where many others fail. As a polyamide-imide (PAI), it offers a unique combination of metal-like performance and the design flexibility of a polymer.

This material is specifically designed for high-load structural applications where strength, impact resistance, and dimensional stability must be maintained across demanding temperature conditions. Torlon® 4203 is commonly post-cured for enhanced chemical resistance and dimensional stability; post-machining cure may be recommended for critical finished components.

Note: as a hygroscopic material, proper moisture control is recommended for maintaining tolerance in humid environments.

Looking for wear-grade or glass-reinforced options? For bearing and wear applications, we also offer Torlon® 4301 and high-stiffness Torlon® 5030 (Glass-Filled).

Why Choose Torlon® 4203 Sheet?

Torlon® 4203 (Electrical Grade) is a specialized material for high-strength structural components. It offers excellent electrical insulation, high impact strength, and high elongation compared with many other PAI stock shape grades. It is the correct choice if you need:

Extreme Thermal Stability:
Maintains strong mechanical performance in continuous service environments up to 500°F (260°C).
Superior Compressive Strength:
Provides higher compressive strength than many advanced engineering plastics under severe stress and heavy static loads.
Exceptional Toughness:
Combines high stiffness with excellent impact resistance to help reduce cracking, chipping, or brittle failure in critical parts.
Broad Chemical Resistance:
Highly resistant to many chemicals, including hydrocarbons, chlorinated solvents, aviation fluids, and automotive fluids. Strong bases, saturated steam, and some high-temperature acid systems may require an alternate material.
Low CLTE:
Features a very low coefficient of linear thermal expansion (CLTE), helping precision-machined parts maintain dimensional stability during thermal cycling.

Torlon® 4203 vs. PEEK: Which Do You Need?

While both are high-performance materials, they serve different engineering requirements.

  • Choose Torlon® 4203 (This Sheet) if your application involves temperatures exceeding 400°F or requires maximum compressive strength and stiffness. It is an excellent choice for high-load structural components.
  • Choose PEEK if your application involves strong bases, hot water, saturated steam, or high-pressure steam environments where PAI may be susceptible.

Fabrication & Machining

Torlon® 4203 is a very hard material and requires specialized machining techniques. Use carbide or PCD (polycrystalline diamond) tooling to achieve the best surface finishes. Due to its high strength, it holds threads exceptionally well. Always consult our machining guide for specific feed and speed recommendations to avoid internal stress buildup.




Material Warnings

Material Warning WARNING: This product can expose you to chemicals including Titanium dioxide CAS 13463-67-7, which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Material Warning WARNING: This product can expose you to chemicals including Tetrafluoroethylene, CAS 116-14-3, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Handling: Cut sheets may have sharp edges. We recommend wearing protective gloves when unpacking and handling this material to ensure safety.

Suitability: We take pride in the quality of our materials as they leave our facility. However, because every project is unique, we cannot account for how materials are modified, stored, or used after delivery. Please perform the necessary tests to ensure this material is right for your specific application and end-use conditions.

PAINT SH



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