Waterproof bag for water sports, outdoor tourism, essential supplies for diving.
The bag is made of waterproof material, and the seam is waterproofed.
During water sports and outdoor activities, you can put your belongings in a waterproof bag to ensure that the items are dry.
Asked the small bag university. The bag body is waterproof material, and the mouth of the bag is mechanically sealed.
The real waterproof bag uses material technology and waterproof conditions to determine whether it is waterproof.
1: General waterproofing: Generally speaking, the general purpose of waterproofing is to process the waterproof fabric by sewing with needlework, and then stick the waterproof tape to prevent the needlework hole from entering the water.
2: Professional waterproofing: There are two types of professional waterproofing:
A: Waterproofing is the highest requirement in terms of technology and materials. This type of waterproof bag is mostly used for outdoor drifting. The material is mainly 500D-1000D laminated net or TPU composite material. The process uses high frequency voltage to melt and make two pieces. The materials are seamlessly fused, and reinforced with transparent material with a bag mouth of about 15CM. The outer three folds and the inner three folds can be truly waterproof. (Inflatable can be used as a life buoy).
B: Dive-grade waterproof: There is a waterproof bag for phones or cameras on the market, which can waterproof up to 10 meters deep, and the waterproof clip can reach a depth of 10-20 meters underwater.
The waterproof lining used for 2-finger ski gloves is generally made of waterproof and breathable materials such as TPU or hipora.