Fre-Thane® 85A Polyurethane Tubing
| O.D. (Outside Diameter) | I.D. (Inside Diameter) | |
| .125 or 1/8 or 3.2 mm | .066 or 1.7 mm | |
| .156 or 5/32 or 4 mm | .094 or 3/32 or 2.4 mm | |
| .156 or 5/32 or 4 mm | .078 or 5/64 or 2 mm | |
| .188 or 3/16 or 4.8 mm | .125 or 1/8 or 3.2 mm | |
| .250 or 1/4 or 6.4 mm | .125 or 1/8 or 3.2 mm | |
| .313 or 5/16 or 8 mm | .188 or 3/16 or 4.8 mm | |
| .375 or 3/8 or 9.5 mm | .250 or 1/4 or 6.4 mm |
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Fre-Thane 85A is one of our most popular tubing products. There are two general classes of polyurethane and both are commonly found in the market: ether-base and ester-base. Chemically, these are made from two different polyol alcohols that cause similar, but different reactions in the isocyanate. From the user's standpoint, the ester-based polymer is less expensive however it degrades when exposed to moisture. Because of this, we manufacture our Fre-Thane® polyurethane tubing using the ether-based material. Freelin-Wade's Fre-Thane has a high resistance to abrasion while being highly flexible and kink resistant. Its most notable quality though is its "memory." Fre-Thane will stretch and flex but always return to its original shape. Freelin-Wade began manufacturing polyurethane tubing in 1980 and it remains our core product today. It is available in 28 in-stock colors and a virtually infinite number of color variations, including clear tubing. Fre-Thane is Freelin-Wade's most versatile product, with more options and variations available than with any other tubing.
