AlphaTec® 4000 - Model 151 Previously known as: MICROCHEM® by AlphaTec® 4000 - Model 151

Innovative multi-layer chemical barrier technology, Type 3/4/5 protection

Key Features and Benefits
  • Exceptional protection, over 200 chemicals permeation tested, including chemical warfare agents
  • Designed to protect, rear entry suit with neoprene rubber face seal for a close fit to full face respirators
  • Welded and taped seams, our highest barrier to liquids and particulates
  • Enhanced comfort, knitted inner cuffs and inner textile type fabric improves wearer acceptance
  • Anti-static, tested according to EN 1149-5
show more
Contact Us

product category

Chemical Protective Suits Chemical Protective Suits
Liquid Spray & Splash

Featured technologies

Design Features

Neoprene rubber face seal, rear horizontal zip entry, ultrasonically welded and taped seams and attached socks with boot overflap.

Standards Overview

CE CATEGORY III (Type 3-B, Type 4-B, Type 5-B, EN 1073-2, EN 14126, EN 1149-5)

Product Reference

4000 - Model 151


M-5XL (03-09)



  • Chemical
  • Life Sciences
  • Mining
  • Fire and Rescue
  • Oil and gas
    • AATCC76; 
    • NFPA 1992
    • ASTM F1671
  • Contaminated Environments
  • Chemical Handling
  • Filling, blending and charging of raw materials
  • Transferring liquids and solids
  • Opening and draining pumps valves or lines
  • Loading and unloading of proces equipment
  • Raw material sample collection
  • Concentration mixing and palletisation
  • Hazmat response
  • Assembly and disassembly of large pipes
  • COLOR Green