Disposable coveralls – Lakeland ChemMax 2 Type 3/4 chemical coveralls

Lakeland ChemMax 2 Type 3/4 chemical protective clothing is an extremely soft and flexible solution compared to chemical coveralls offering similar protection levels.

• ChemMax 2 chemical coveralls are white with grey seams for easy identification and high visibility
• Low noise level for improved comfort and safety
• Features Dow Saranex^® 23P barrier film – soft and flexible, tried and tested around the world
• ChemMax 2 chemical protective clothing fills the gap between the limited ranges offered by competitors and provides an extremely soft and flexible fabric with a more competitive price-point for many applications requiring chemical protection
• This coverall also offers Type 5/6 protection
• Permeation testing achieved similar or better result on 66% of 100 chemicals tested, compared to more expensive competitors
• Chemical coveralls feature cushioned double-layer knee pads for extra mobility, health 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
• High neck and zip flaps for advanced face and neck protection
• Double zip and storm flap – front fastening for safe and secure protection
• All ChemMax chemical protective clothing feature stitched and taped seams to create fully sealed seams against liquid and dust ingress*
• Permeation tested against a basic range of chemicals
• ChemMax is available in two other options – the heavier ChemMax 3 and the entry-level ChemMax 1
• All Lakeland coveralls are suitable for asbestos handling and removal

Typical applications include:

• Higher hazard chemical protection
• Petrochemical and refining applications
• Chemical handling and distribution
• Chemical clean-ups and spill management
• Contaminated land clearing
• Oil spill clean ups

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Which garment to use:

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.

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.