Waterproof bag for water sports, outdoor travel, and diving essential supplies.
The bag is made of waterproof material, and the sewing thread is waterproofed.
In the process of water sports and outdoor activities, you can put your belongings in a waterproof bag to ensure that the items are dry.
Little bag University asked. The body of the bag is made of waterproof material, and the mouth of the bag is mechanically sealed.
The real waterproof bag is qualitatively waterproof according to the material technology and waterproof conditions.
1: General waterproof: General waterproofing means that the waterproof fabric is sewn by needlework technology, and then glued with waterproof tape to prevent water from entering the needle thread hole.
2: Professional waterproof: There are two types of professional waterproof:
A: In terms of technology and materials, the waterproof level is the highest requirement. This type of waterproof bag is mostly used for outdoor drifting. The material is mainly 500D-1000D mesh or TPU composite. The process uses high-frequency voltage to heat to make two pieces The material is seamlessly fused, and the bag is reinforced with a transparent and smooth 15cm transparent material, which is three-folded on the outside and three-folded on the inside. This processing method can be truly waterproof (it can be used as a lifebuoy after inflating).
B: Submersible waterproof: There is a waterproof bag for phones or cameras on the market, which can be waterproof below 10 meters, and the waterproof clip can reach a depth of 10-20 meters underwater.
2 refers to the waterproof inner lining used on ski gloves, generally made of waterproof and breathable materials such as TPU or hipora.