Orings - Custom Size 5 To 10 Inches OD (Sold Individually)

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Product Overview

We will manufacture a custom oring to fit your specific optic. Measure the diameter of your optic just inside the retaining ring (or housing if retained from the back side) and provide the measurement to the next smallest 1/16th inch measurement. Example: An optic is 8 and 9/16th inch diameter measured just inside the retaining ring. Enter 8 and 8/16th (or 8 and 1/2 inch) diameter in the text box. Please provide the name and model number of the equipment so we can retain this information for your next order.

These are chemical resistant orings that do not swell when in contact with the polymer. Do not use cheap Butyl or Buna orings, they will absorb solvents, swell and can break down leaving residue.

NOTES: 1. If the orings are not flat when received and do not lay flat on your optic you can lay on a flat surface and apply mild heat with a heat gun and the orings will flatten. Allow to cool then apply to your optic! 2. The oring may trap a very thin layer of polymer underneath and leave polymer residue when peeled. This possible situation can be avoided by coating one side of the oring with polymer (or dipping), and once dry you can set in place and use per directions.


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