Quick Summary

  • Butyl = best moisture/gas barrier, good dexterity.
  • Viton = strongest solvent/chemical resistance, longest life.
  • Nitrile = budget-friendly, good feel, replace more often.
  • Pick 12–16 mil for dexterity, 20–30 mil for durability/solvents.
  • Do a 30-second leak check each shift; keep ports clean and dry.

Materials at a glance

PropertyButylVitonNitrile
Barrier to H₂O/O₂★★★★★★★★★
Solvent resistance★★★★★★★★★–★★★
Dexterity (thin grades)★★★★★★★★★★★
Durability (thick grades)★★★★★★★★★
Cost$$$$$$
Typical useBattery, air-sensitive workAggressive organics/halidesGeneral R&D, training

Rule of thumb: if your work is ppm/moisture-critical, start with Butyl; if it’s solvent-aggressive, choose Viton; for everyday tasks, Nitrile is fine and inexpensive.

Sizing & thickness (get the fit right)

  • Port sizes: common rings are 8″ (~203 mm) and 10″ (~254 mm); match glove bead to ring.
  • Length: choose a gauntlet that reaches past mid-forearm without stretching at full reach.
  • Thickness:
    • 12–16 mil (0.3–0.4 mm): fine assembly, best feel.
    • 20–30 mil (0.5–0.75 mm): longer life, solvent handling.
  • For delicate work, use thin glove + inner disposable nitrile for hygiene.

Daily 30-second leak check

  1. Set box to +5 mbar and keep hands out.
  2. Wipe glove surface; pinch finger tips—listen/feel for leaks.
  3. Spray a light IPA mist on seams while gently flexing; watch for disturbance or odor ingress.
  4. If in doubt, change the glove—tiny leaks waste purifier life.
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