Protect Your People

Chemical Protective Clothing

Protection against Hazardous Liquid Chemicals

Type 3: (EN 14605) 
Protection against strong sprays
of liquid chemicals : Liquid Tight Seams                       

Type 4: : (EN 14065)
Protection against sprays of liquid chemicals
See below for further information on CE Types 3 & 4

Lakeland offers users wider choice with five fabric options, each with a different level of permeation barrier against a range of chemicals. The result? Safety professionals can more accurately target garment selection at their specific application, both maximising protection and comfort AND minimising cost.

All Lakeland TomteX and ChemMAX Coveralls include design features engineered to enhance protection and comfort:-


Product Range:-

 Typical Applications & Industries

TomteX ChemMAX 1 ChemMAX 2 ChemMAX 3 ChemMAX 4
  • Overhead / intense insecticide spraying
  • Agricultural applications involving hazardous chemicals
  • Tank cleaning
  • Lightweight chemical handling 
  • Tank Cleaning
  • Petrochemical & Refining
  • Hazardous maintenance
  • Chemical Handling
  • Contaminated land clearance
  • Jet Spray Cleaning 
  • Higher hazard chemical applications*
  • Petrochemical & Refining
  • Chemical clean-ups and spill management
  • Oil-spill clean-ups 
  • Higher hazard chemical applications*
  • Petrochemical & Refining
  • Chemical clean-ups and spill management
  • Oil-spill clean-ups
  • Anti-chemical warfare agent operations 
  • High hazard chemical protection involving specific chemicals - eg:-
  • Chlorobenzine
  • Diethylamine
  • Nirobenzine

The key to selection of chemical protective garments relates to assessing the barrier of the garment fabric against specific chemicals in use. See further information below


For further information on differences between Types 3 & 4 and the implications of permeation testing see Further Information


  Chemical permeation and Garment Selection  

The first key to chemical suit selection is identifying the suit that provides adequate protection against the chemical used whilst minimising garment weight and cost. The wider Lakeland choice compared to other comparable ranges means better targeting of the coverall to the task.

The table below shows the permeation results against the chemicals listed in EN 6529 (The EN permeation test method) Annex A2 - a list intended to provide a broad range of chemical groups to enable garment comparison and initial fabric selection. The list also includes the Lakeland gas tight coverall Interceptor.

This table can be used as an initial Lakeland garment selector. A more detailed analysis can be made using Lakeland’s full chemical search. For any chemicals not listed contact us and a test can be arranged subject to volume and availability.

Further, the ChemMAX Permeation Table Selector page compares Lakeland garment results for these chemicals with main competitors' comparative products - this graphically demonstrates how lakeland options offer greater choice and better targeted - as well as often lower cost - solutions.

For more information on Chemical suit selection  and chemical permeation see below or download the Lakeland Guide to the Selection of Type 3 & 4 chemical suits: Permeation vs Penetration


        Lakeland Chemical Permeation Table according to EN 5629 -Annex B (EN Permeation Test Method) 
    TomteX ChemMAX 1 ChemMAX 2 ChemMAX 3 ChemMAX 4 Interceptor
 Chemical CAS No *

"Normalized" Breakthrough * in minutes at rate of 1µg / min / cm2  

 Acetone  67-64-1 nt  Imm  Imm  >480  >480  >480
Acetonitrile  70-05-8  nt  >480  >480   >480  >480  >480
Carbon Disulphide 75-15-0  nt  >480  Imm   >480  >480  >480
Dichloromethane  75-09-2  nt  Imm  Imm   >480  >480  >480
Diethylamine  109-89-7  nt  Imm  15   Imm  >480  >480
Ethyl Acetate  141-78-6  nt  Imm  >480  >480   >480  >480
n-hexane  110-54-3  nt  Imm  >480  >480   >480  >480
Methanol  67-56-1  5 210  >480  >480   >480  >480
Sodium Hydroxide  1310-73-2  >480  >480 (50%)  >480 (50%)  >480 (50%)   >480  >480
Sulphuric Acid (96%)  7664-93-9  >480  >480  >480  >480   >480  >480
Tetrahydrafuran  109-99-9  nt  Imm  81  >480   >480  >480
 Toluene 108-88-3  nt Imm  Imm  >480   >480  >480


  • Imm = Immediate breakthrough    /    nt = Not Tested
  • Chemicals are tested at a concentration of 100% or saturation unless otherwise stated.
  • Beware! Chemical testing according to EN 6529 is conducted at 25% oC +/- 5oC. permeation rates may vary considerably at higher ambient temperatures
  • Information on structure, hazards and Material Safety Data Sheets on many commonly used chemicals can be found here and here.(These link to external sites over which Lakeland has no control and Lakeland makes no claim or guarantee that the information on these sites is correct).
  • Normalized breakthrough times are a reflection of controlled laboratory tests according to EN6529 (or previous versions EN 369 & EN 374-3). “Normalized Breakthrough” is defined as the time to reach a measured PERMEATION RATE of 1.0µg / min / cm2. This DOES NOT indicate the time to any measured breakthrough of a chemical nor that NO TRACE of the chemical has permeated through the fabric in less than 480 Minutes. Further, results may vary according to lab, detection methods and sensitivity, and ambient conditions such as temperature.
  • These results are therefor not intended to indicate any guaranteed duration of “safe use” for any garment but rather to provide a basic guide to preliminary selection and to indicate chemical protective capabilities relative to each other
  • Chemical suit selection should also be made on the basis of design requirements as well as fabric chemical barrier

Download Lakeland’s guide to permeation, penetration and chemical suit selection        



9 Item(s)

Set Descending Direction
per page

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  1. ChemMAX 1 Cool Suit Advance Plus

    ChemMAX 1 Cool Suit Advance Plus

    Style Number CT1SCF428
  2. ChemMAX Push-Lock Glove Connection System
  3. ChemMAX® 1

    ChemMAX® 1

    Style Number CT1S428
  4. ChemMAX® 2

    ChemMAX® 2

    Style Number CT2S428
  5. ChemMAX® 3

    ChemMAX® 3

    Style Number CT3S428
  6. ChemMAX® 4

    ChemMAX® 4

    Style Number CT4S428
  7. MicroMAX® TS

    MicroMAX® TS

    Style Number EMNT428
  8. MicroMAX® TS (with attached booties)
  9. TomteX®


    Style Number ETO428

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