Disposable protective suits of protection classes Type 5 and Type 6 are among the most commonly used solutions in industrial environments. For dealers, it is relevant how reliably these products actually work against dusts and light liquid splashes and where technical limits exist. This article examines the performance of common 5/6 overalls such as the ProSafe model from the perspective of standard requirements and practical testing conditions.
1. Standard basis: What Type 5 and Type 6 must achieve
Protective suits of the categories
- Type 5: Protection against solid airborne particles according to EN ISO 13982-1
- Type 6: Protection against light liquid splashes according to EN 13034
Standards define minimum performances, including:
Type 5 requirements
- Particle penetration test on material and seams
- Internal leakage measurement by particles
- Minimum strength requirements (tear strength, tear propagation strength)
Type 6 requirements
- “Reduced Spray Test” with defined liquid amount
- Material penetration test with aqueous test solution
- Classification by penetration degree
These requirements are clearly defined and independent of the manufacturer. However, the reliability of individual models also depends on material quality, seam system, and processing.
2. Material structure: SMS and microporous laminate structures
Typical materials in the 5/6 segment:
SMS (Spunbond-Meltblown-Spunbond)
- Good breathability
- Limited liquid barrier
- Suitable for dusty work environments
- Often used in lighter 5/6 suits
Microporous laminate (MP laminate)
- Higher barrier against liquids and particles
- Lower breathability
- Common in models with extended splash protection
3. Seam technologies in comparison
The seam is a critical weak point, especially in contact with liquids.
|
Seam type |
Assessment in the 5/6 context |
|
Stitched seams |
Sufficient for Type 5, limited protection for Type 6 |
|
Taped seams |
Higher liquid barrier, often found in MP laminate |
|
Welded seams |
Usually only common in higher protection classes (Type 3/4) |
A ProSafe overall in the 5/6 range typically uses stitched or taped seams. Technical data sheets depend on the model.
4. Practical suitability: tear resistance and mobility
Dealers should check the following criteria as they significantly influence reliability:
Tear resistance and abrasion
- Standards define minimum values, practical requirements are often higher.
- MP laminate offers higher barrier but is less stretchable.
- SMS offers better mobility but can tear more quickly.
Fit and stress points
- Zippers, the butt area, and shoulders are typical weak points.
- Sizes that are too small increase the risk of seam or material tears.
5. Performance limits of protection class 5/6
Type 5/6 is reliable as long as the use fits the standard. Limits exist when:
- Liquids under pressure occur (requires Type 3)
- Spray mist with higher exposure occurs (Type 4)
- Hazardous substances with high penetration ability are present
- Mechanical abrasion increases significantly
- Long wear times increase heat and moisture stress
These limits are based on standards and are clearly demonstrable.
6. Evaluation of a ProSafe 5/6 overall in the stress test
The following observations are based on typical test conditions for comparable 5/6 products. Specific performance values of a ProSafe model vary depending on the design.
Strengths
- Reliable protection against dust exposure according to Type 5
- Good barrier against light splashes under Type 6 test conditions
- Low particle release suitable for hygienically sensitive areas
Challenges
- Limited air permeability with laminate material
- Risk of material fatigue during kneeling activities
- Stress points depend on seam system and size
None of these points are manufacturer-specific, but apply to the entire segment.
Conclusion
Class 5/6 protective suits are a reliable solution for dusty environments and light splash protection, as long as the application remains within the standard limits. Models like the ProSafe 5/6 overall typically provide a solid barrier performance, the quality of which largely depends on material, seam technique, and fit. Dealers benefit from clearly informing customers about the limits of use and the differences between SMS and laminate.