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Flex-Loc™ 300 Push-On
Air / Multipurpose Hose

Designed specifically for use with robotic welders and industrial applications requiring an MSHA approved flame-resistant cover, Flex-Loc™ 300 is a premium 300 psi oil-resistant, non-conductive push-on hose that provides safe and reliable performance in oily and harsh conditions. It features an excellent coupling retention and a superior hold created by a unique spiral angle design and polyester reinforcement that firmly grips the fitting and will not give under pressure. Not recommended for unleaded gasoline.

Technical Overview

Cover Color ■ Black, Blue, Gray,
   Red, Green or Yellow
Oil Resistance ■ High
Construction ■ Non-conductive
■ Tube: Nitrile, RMA Class A
■ Cover: Nitrile/PVC RMA Class A
■ Reinforcement: Spiral polyester
Temperature Range ■ -30°F to +180°F, -34°C to +82°C
Packaging ■ 500 – 700FT and 250FT reels


Thermoid Catalog – Flex-Loc™ 300 Push-On


Cancer and Reproductive Harm –

Features & Benefits

NBR, RMA Tube – Class A
  • High Oil Resistance
NBR/PVC, RMA Cover – Class A
  • High Oil Resistance
2-Spiral Aramid Yarn Reinforcement
  • Provides a Working Pressure to 300 psi
  • Grips the Fitting from the Inside
  • More Flexible than Braid Reinforced Hose
  • Easier to Route Assemblies
  • Easier to Coil and Handle
  • Less Susceptible to Premature Failure than Braided Hose if Subjected to Torque
Push-On Hose Construction
  • Allows Fittings to be Easily Inserted
  • No Special Crimping Equipment Required
MSHA Approved Cover
  • Flame Retardant
Variety of Colors Available
  • Allows for Color Coding
Pressureless Cure System
  • Minimal Cast
    (Natural Curvature of the Hose)
  • Extends the Life of the Rubber Compounds
Air Mandrel Manufacturing Process
  • No Internal Contamination of the Inside Diameter Due to the Lubricant
  • Eliminates the Need for the Customer to Flush the Hose
500-700FT Reels
  • Over 80% One Piece Reels
  • Less Scrap