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Tips for measuring »
How To Measure |
Using a measuring tape
Here's a little refresher on how to use a measure tape. First, let's talk about the increments. We'll assume that you're using the English or Imperial system of feet and inches. Extend your tape measure several inches and find the large 1 and 2. On most English measuring tape, the smallest increment is 1/16 of an inch. This means that there are 16 equally spaced marks between 1 and 2 inches on the tape. When measuring, count how many of these marks you are beyond the nearest inch. If your piece measures 7 inches and other 8 marks, that is 8/16 (1/2) for a total of 7-1/2".Let's say you were taking your second measurement (see below) and this time you counted 9 marks past the 7 inch mark. That means your piece is actually 7-9/16" long.
The clip on the end of my measuring tape slides back and forth. Is it broken?
No! The sliding clip on the end of the tape is designed for two different types of measurements. When you take an outside measurement (where you hand the clip of the tape over an edge), the clip slides out a little to account for the thickness. When you take an inside measurement (push the clip up against a surface), the clip slides in, again accounting for its thickness. The measuring tape self-adjusts so, either way, you get an accurate measurement.
Measure Twice, Cut Once
Once we cut a stock size piece, we can't ever sell it as full size piece again. So, PLEASE MEASURE CAREFULLY, and DOUBLE CHECK YOUR MEASUREMENTS BEFORE YOU ORDER. The old adage is espcially true here: measure twice, cut once. WE do it before we cut your piece, and YOU should do it before you order.
PEINE - Overview
Ultem (PEI) is an amorphous polymer that offers high strength and excellent resistance to flame and heat. It performs continuously to 340F (170C) which makes it ideal for high strength/high heat applications, and those applications requiring consistent dielectric properties over a wide frequency range.
PEI combines high temperature resistance, rigidity, impact strength, and creep resistance. PEI has found use in medical applications because of its heat and radiation resistance, hydrolytic stability, and transparency; in the electronics field, it is used to make burn-in sockets, bobbins, and printed circuit substrates; automotive uses include lamp sockets and under-hood temperature sensors; and PEI plastic sheeting is used in aircraft interiors. Relative to PEEK, Ultem/PEI is cheaper, but less temperature-resistant and has a lower in impact strength.
[PDF Spec Sheet]
• High tensile and dielectric strength
• Flame resistant
• Excellent strength, stiffness and dimensional stability
• Excellent hydrolytic stability
• High wear resistance
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