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Disposable coveralls – Lakeland ChemMax 3 Type 3/4 multi-layer barrier

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The Lakeland ChemMax 3 Type 3/4 chemical suit is made from a superior multi-layer barrier film laminated to a spunbound PP substrate.

  • Protects against a wide range of chemicals
  • Extruded fabric construction for a smoother and more consistent fabric than bonded or glued processes
  • Supported by PermaSURE®  online tool to model permeation rates and provide safe-use times by calculating environmental, temperature and chemical exposure factors.

The Lakeland ChemMax 3 Type 3/4 chemical suit is made from a superior multi-layer barrier film laminated to a spunbound PP substrate.

 

  • Soft and flexible multi-layer barrier fabric for protection against a wide range of chemicals
  • This grey coloured chemical suit features extruded fabric construction which results in smoother and more consistent fabric than bonded or glued processes
  • Superior softness, flexibility and more consistent chemical barrier (no ‘pinching’ or thinner bond points)
  • European manufactured fabric, tested against a full range of chemical warfare agents for anti-terror and civil defence operations
  • This coverall also offers Type 5/6 protection
  • Extremely low noise level for improved safety and comfort
  • All Lakeland ChemMax chemical coveralls feature cushioned double-layer knee pads for increased comfort and safety
  • Super-B style design – this coverall has been developed for a superior fit, wearability and durability
  • This well-fitted garment features inset sleeves and diamond crotch gusset
  • These chemical coveralls feature a three-piece hood design with a tapered centrepiece for a superior face and respirator mask fit
  • Advanced face and neck protection with higher neck and zip flaps
  • Double zip and storm flap – front fastening for safe and secure protection
  • All ChemMax protective coveralls feature stitched and taped seams to create fully sealed seams against liquid and dust ingress*
  • Permeation tested against a basic range of chemicals
  • Other chemical protective coveralls also available include the mid-level ChemMax 2 and the entry-level ChemMax 1
  • All Lakeland coveralls are suitable for asbestos handling and removal

 

How long have I got?
The online PermaSURE® app is available for use with the ChemMax 3 chemical suit.

PermaSURE® is a free, mobile-friendly online tool that models permeation rates and provides safe-use times by incorporating environmental, temperature and chemical exposure factors. It is based on the known molecular characteristics and behaviour of 4000+ chemicals interacting with Lakeland’s specific chemical fabrics. Click the downloads tab for more info.

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Which garment to use:

Light Spray
TYPE 6

Hazardous dust
TYPE 5
Liquid Spray
TYPE 4
Jet Spray
TYPE 3

Gas or Vapour
TYPE 1&2

Light spray/aerosol protection Dry particle protection General overall spray:
no pressure but coverall soaked
Strong jet sprays –
higher pressure
Surrounding gases or vapours

 

Lakeland coverall - strenuous work

Physical factors such as strenuous work?
The physical demands of a task such as climbing ladders, crawling or working in confined spaces, especially if the chemical is highly toxic,  may require higher strength fabric or a specific design, even though permeation analysis and/or the hazard spray type indicate a lighter/more comfortable garment.

Lakeland liquid or gas safety

Liquid or gas?
Liquid would normally suggest a Type 3 or 4 hazard. However, some chemicals have low boiling points, becoming vapour at low temperatures. In such cases a gas-tight suit might be appropriate. Such information can be obtained from Safety Data Sheets.

 

Type 3 vs Type 4 –  the different spray tests

EN 14605 – Type 3: ‘jet’ sprays EN14605 – Type 4: ‘liquid’ sprays

  • Strong, directional jets of liquid spray
  • Results in intense, local pressure on fabric, seams and joins
  • Back-spray will penetrate under, up or behind any loose flaps or joins
  • In finished garment spray test, single jets of liquid are sprayed at ‘potential’ weak areas of suit (seams, crotch, zip flap ect.)
  • Wider, less pressurised liquid sprays
  • Results in saturation of fabric (so sealed seams required) but no pressure on garment, seams or joins
  • No risk of back-spray penetrating under, up or behind loose flaps or joins
  • In finished garment spray test, four nozzles with general overspray of liquid

 

By identifying that your application is Type 4 only (rather than Type 3), this enables more options for garment design and choice, along with a greater level of comfort.

 

*About stitched and taped seams:

The seam is first stitched and sealed on the outside with a heat activated tape. This results in an impervious seam which is completely liquid-tight. As these seams are generally used for chemical suits the tape type is often constructed from a similar material to the garment fabric in order to maintain similar chemical permeation properties.

  • Grey coloured chemical coveralls
  • Multi-layer barrier film with smooth, flexible and even finish
  • Low noise level
  • Passes all four EN14126 bio-hazard tests
  • Cushioned double-layer knee pads
  • Super-B style: superior fit, wearability and durability
  • Three-piece hood, inset sleeves and diamond crotch gusset
  • Tapered centre piece, face and respirator mask fit
  • High neck and zip flaps
  • Double zip and storm flap front fastening
  • Suitable for asbestos handling and removal
  • Use PermaSURE® online tool with ChemMax 3

Lakeland coverall sizing guide

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