As a bag manufacturer, we often hear customers make requests, such as "We need the bag to be waterproof". But as we all know, a sewn bag is not completely waterproof because it has pinholes, so what we have to do is make the main material waterproof and water-resistant. Most people may be confused about the meaning of water-resistant and waterproof. Today, let's take a deep look at two common waterproof performance standards: water-resistant and waterproof.
Water-resistant
Water-resistant materials are a kind of materials that resist water intrusion but do not completely prevent moisture penetration. Generally speaking, the water-resistant material will keep the bag dry when you accidentally splash water on it. They usually use special treatments or coatings to increase their surface tension, allowing water droplets to roll quickly on the surface without penetrating. For example, many travel toiletry bags and nylon sports bags use water-resistant materials, which can resist water and moisture for a short period, providing basic protection for skincare and sports clothes.
The advantage of water-resistant materials is that they keep the breathability of bags or clothing, so they are suitable for occasions that require lightness, breathability, and short-term waterproofing. For example, windbreakers for morning runs and lightweight toiletry bags are typical water-resistant materials applications.
Water-proof
Waterproof materials are the highest level of waterproof performance, which can completely prevent moisture from penetrating the material. This material usually uses high-tech waterproof coatings or multi-layer isolation technology to ensure that the interior can remain dry even in heavy rain or long-term immersion. Waterproof materials are widely used in diving suits, raincoats, waterproof bags, and water sports equipment, which are required to remain functional in extremely wet or underwater environments.
The main advantage of waterproof materials is their high waterproof performance, which is suitable for activities that require long-term exposure to water or extremely humid conditions. For example, waterproof suits used by deep-sea divers and waterproof backpacks for adventurers cannot do without the protection of such high-performance materials.
What should we do to make the bag water-resistant or waterproof?
Water-resistant type: We usually use special treatments or coatings to increase their surface tension. It can keep the bag short-waterproof, but if the water drops stop on the fabric surface for a long time, the water will slowly come into the fabric. For these textiles, nylon, oxford, polyester, canvas, cotton, etc., it often adopts this technique. Now many materials like nylon and oxford have been water-resistant in the market and don’t need to be re-processed and its cost is not expensive.
Water-resistant Twill Mini Waist Bag:
Waterproof type: Textile fabrics generally use lamination technology to achieve the waterproof effect. Common lamination materials include thin TPU, PVC, EVA, TPE, etc. PP woven materials are often coated with OPP film. PVC, PU, Silicone, etc. are waterproof in themselves. Unlike water-resistant materials, the waterproof performance of coating materials will not decrease with time and the number of washes.
TPE laminated RPET Essential Oil Bag:
In summary, water-resistant and waterproof are divided according to different levels of their waterproof performance, and each material has its unique advantages and applicable scenarios. You can choose the different materials according to your specific requirements. If the bag is used in the bathroom, it is enough to choose a water-resistant material. If it is used to carry a wet swimsuit, it is best to choose a waterproof material. If you are not sure, you can consult our sales team, and we will advise you according to your specific request.