Polyester mathas high intensity high extension and puncture resistance. The base mat as bitumen waterproofing material is widely used in building area. The technical specifications include external quality, inner quality test item and internal quality reference. In order to meet customers` different requirement, divide the materials into Grade A, B, C by breaking strength. It totally meets the national standard. The annual production achieve 5 million meters. It uses polyester filament fiber and polyester staple fiber as raw material, and is produced by reinforcing after needle-punched or hot sticking and once again heating or chemical sticking process.
External quality: the face of polyester non-woven fabric(polyester felt, polyester mat) as bitumen waterproofing material should be well-distributed, smooth, no crease, no break, the roll being even.
Internal quality: width deviation, breaking strength, elongation break and thermal stability, technical specification can be divided into Grade A, B, C by breaking strength, checking table.
Cut down 3 pieces of small samples off at least 100mm far away from the sample edge, each piece is 50mm*200mm, and the direction is same as the product`s length direction. The sample should be humidifying and tested in the stipulated temperature & humidity as GB6529. The test equipment is bent board made by metal and hard wood. In the process of bending, the small sample must be totally close to the bent board, bending in the center of board with 35mm radius. At the same time, we check whether the sample has crease or not.
WATER RESISTANCE TEST:
Cut down 5 pieces of small samples off at least 100mm far away from the sample edge, each piece is 300mm*3mm, in each length and breadth direction. Put the sample in water(20+-2°C) for 24 hours, and then pull it out and put it in 110°C oven for 2 hours, and the test the sample`s breaking strength as GB/T3923.1.
"chenhua" brand polyester matcan be classified into:
National standard: 220.250.330.450
"chenhua" brand polyester matcode no:
Company code no.
T-heating bond B-chemical bond
PES(F)-polyester long fiber/PES(S)-polyester staple fiber
Weifang Chenhua Waterproof Co., Ltd was established in 1994, she is located in Taitou Shouguang City, which is the biggest construction waterproofing base in China, with convenient transportation and superior location. Our company now has three factories, covering an area of seventy thousand square meters, there are more than 300 high qualification employees, among them 50 worker are senior technical personnel. She is a high-tech intensive enterprise integrating scientific research, ... View detail