Peek Insulator – What is it in Vaping?

Definition

A Peek Insulator is a small, heat-resistant spacer made from polyether ether ketone (PEEK) that electrically isolates the positive pin of an atomiser or tank from its metal body. In every vape—from compact pod systems to high-wattage rebuildables—the insulator prevents the battery from short-circuiting by ensuring current can only flow through the coil. Because PEEK tolerates temperatures above 250 °C and resists degradation by both Glycol)”>PG (Propylene Glycol) and Glycerin)”>VG (Vegetable Glycerin), it keeps flavour pure and guarantees reliable puff count over the device’s lifetime.

Technical Details

How It Works

The Peek Insulator sits at the base of the 510 connection or inside the positive pole of a coil head. It forms a tight, non-conductive ring or sleeve around the positive pin while allowing liquid to wick upward into the cotton. Its high dielectric strength (up to 24 kV/mm) blocks stray current, even when power mode is pushed beyond 100 W.

Specifications & Variations

  • Standard size: 4 mm OD × 2 mm ID × 1 mm thick for most 510 connections
  • Pod systems: Micro-moulded, 2 mm OD variants for press-fit coil cartridges
  • Rebuildables: Custom-cut PEEK blocks for post-less decks
  • Colour: Natural tan or black; colour does not affect performance

Usage & Tips

  • Install dry: Never pre-saturate the insulator with juice; excess VG can swell the material and loosen the fit.
  • Check after drops: A cracked Peek Insulator is the #1 cause of “atomiser short” warnings—replace immediately.
  • Cleaning: Rinse with warm water, air-dry; avoid ultrasonic baths that can dislodge the sleeve.
  • Safety: If you notice sparking or inconsistent resistance, stop vaping and inspect the insulator before continuing.

History & Context

Peek Insulators replaced earlier PTFE (Teflon) spacers in the mid-2010s when high-wattage box mods demanded better thermal stability. Today, every reputable manufacturer—from Aspire to Vaporesso—specifies medical-grade PEEK to meet Australian electrical safety standards.

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