Waterproof jackets are an indispensable part of the wardrobe for anyone facing wet or rainy conditions. Whether you are an avid hiker, an active athlete, or a professional working outdoors, choosing the right waterproof jacket is essential. The key is understanding the different classes of water resistance and how they are measured and tested.

In this article, we will explore what makes a jacket waterproof and how you can make an informed choice of this type. workwear.

What distinguishes waterproof jackets?

Waterproof jackets are an essential part of clothing when the weather is wet or rainy. Let's look at their main features.

Waterproof jackets are distinguished by three main indicators – water resistance, breathability, and durability. Water resistance is measured in millimeters of water column, indicating how much water the material can withstand before it starts to leak.

Breathability is important for comfort as it prevents moisture buildup inside the jacket. Durability is related to the quality of materials and workmanship, ensuring long-lasting use.

The combination of these characteristics determines the jacket's effectiveness in different climatic conditions. Choosing the right waterproof jacket depends on the needs and conditions in which it will be used.

How is their water resistance tested?

Water resistance of waterproof work jackets is crucial for their effectiveness. This parameter is measured through specific tests that simulate various rainfall conditions.

The most popular method for testing jackets is AATCC 35 – Rain Resistance Test. The standard is designed to measure the resistance of clothing fabrics to water penetration. This test applies to both single fabrics and fabric combinations. It uses a device that simulates different water hammer pressures to assess the waterproofness of the fabrics. The test results are based on the wetting of fibers, yarns, and coatings on the fabric, water repellency, and the fabric structure.

What is the testing process?

1. Preparation

The fabric test sample is weighed before the test begins and then dried to ensure the sample is in a stable state.

2. Rain simulation

The fabric sample is sprayed with water for a period of 5 minutes under controlled conditions. It is placed on absorbent paper (blotter), which absorbs the water passing through the fabric. Spraying conditions include pressure, water flow rate, and temperature to simulate even rainfall.

3. Measuring water absorption

After the sample is sprayed, the blotter (paper) is weighed again. The difference in the blotter’s weight before and after the test shows the amount that passed through the test sample.

During testing, if a drop contacts the fabric at an angle less than 90 degrees, it means the fabric absorbs a small amount of water. If the drop hits at an angle over 90 degrees, then absorption is even less. Water-repellent properties are also determined by the drop’s impact angle and the area it covers.

The results of this test help determine how well the fabric repels water and withstands water pressure, taking into account various factors such as chemical composition, surface roughness, and presence of contaminants.

Tests ensure that jackets can protect their users in various climatic conditions and can be classified as waterproof. It is important to note that a higher water column means a higher level of protection.

What are the degrees of waterproofness?

Understanding the degrees of waterproofness is essential for selecting the right jacket. They are determined by the water column the material can withstand before it starts to leak.

When choosing rain gear, the main indicator of waterproofness you will encounter is the water column. This is a unit of measurement for the pressure exerted by a volume of water on 1 sq. cm of fabric. Its height is measured in millimeters per unit area.

Imagine placing a bottomless test tube with an area of 1 sq. cm on the fabric and filling it with water. The maximum height the water reaches in the test tube before the fabric starts to leak is its water column. The higher the water column, the more waterproof the fabric is.

For example, a water column of 3000 mm means that the fabric can withstand pressure up to 3 meters high on 1 sq. cm without letting water through.

The minimum value for clothing starts at 1000 mm. On the other hand, the higher the water column, the lower the fabric's "breathability." This means that sweat evaporation is hindered.

Waterproofing is usually achieved by applying a layer of synthetic material onto the fabric, which seals the pores. With prolonged use, this layer can wear off but can be restored with impregnating agents like sprays.

How to choose the right model for your profession?

Choosing the right waterproof jacket depends not only on the level of waterproofing but also on the specific requirements of your profession. Some professions require a high level of protection and comfort. Sometimes the professional environment requires you to combine it with work pants, with similar characteristics.

When choosing a jacket for outdoor work, such as construction or gardening, it is important to pay attention to the durability of the materials and additional protective features. Waterproof jackets with reinforced seams and extra layers of protection are ideal for such conditions.

For professions that require frequent movement and activity, such as courier services or sports activities, it is important that the jacket is lightweight and breathable. This will ensure comfort throughout the day.

In our online store Bultex99.com, you will find a wide range of men's and women's models waterproof clothing, suitable for various professions and climatic conditions. Whether you are looking for a jacket with waterproofing of 3000 mm, 5000 mm, or 8000 mm, Bultex99 offers quality solutions for all needs.

Choosing the right jacket is key to your comfort and productivity. Do not underestimate the importance of quality and features that meet your professional needs and climatic conditions.