roofing felt

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APP Modified Bitumen Waterproof Membrane finished PE film

1.Description:

DY-APP Modified Bitumen Waterproof Membrane materials using  polyester reinforcement for waterproofing,it's made from  polyester felt as its reinforcement featuring high strength,elongation and corrision resistance, APP,APAO as its modifier for meeting the torched-on applications, it shall be covered with polyethylene membrane(PE),aluminium foil, colorful sand or mineral granule on its top face and polyethylene membrane(PE)coated on its under face. This series of membrane is designed for the waterproofing of underground construction such as tunnel, subway, basement ,roofs and pools etc.         

2.APP Membrane installation procedure:

1.Base processing:the base surface must be clean,solid,level,dry;no grit,rift and loosing dust. For a large recess,fill it with cement mortar and then level it. Remove the protrusion and clean dust.If working on base slab or lateral face,water lowering should be done.

2. Painting primer:before laying the membrane,clean the dust on the surface of concrete base with dust catcher or dust-blower;then paint entirely with treatment agent of DY primer for waterproofing(for purpose of dust consolidation and high adhesive effect).

3.Heat to melt: place membrane correctly, fire torch, heat the membrane with base entirely, when the surface of the membrane is black and bright with a fusion layer, apply the membrane and press it into a solid and flat state.Before the membrane is cool, seal the edge of joint by float.

4.Requirements for lapping: There should be less than 3 layers of lapping, with the joint seams appearing as"T" type,avoid 4 layers of lapping.The width of longitudinal lapping is between 50 and 80mm,and of end-lap joint 100mm

5.After application

3. Package and transportation:

1.  Membranes should be stored under dry and ventilated conditions.

2.  Different types of membranes must be piled separately.

3.  Under usual condition, storage period is one year since production date.

4.  Membrane roll should be put vertically during transportation. It should be kept away from sunshine and rainwater.

4. Requirements for surroundings:

1.The base should be dry and clean. Do not work in the rainy or snowy day.

2.Do not work under heavy wind(above 5 grade)

3.Unsuitable for construction below 0°C

4.If it is rain or snow in the process of construction, protective measure to the laid membrane is must.

Guangzhou Dayu Waterproof  Co., Ltd

Guangzhou Dayu Waterproof Co., Ltd was founded in 1995, which is a hitech company on waterproof material R&D, manufacturing, sales and construction. Our registered capital is 50 million, we have 20000 square meters production base, about 8000 square meters plant as well as specialized construction team and waterproof materials factory. Now we have two sets of full automatic temperature control production equipment, one set of  full automatic powder mixing dispersion equipment and one set of full automatic liquid mixing dispersion equipment, coating annual production capacity can reach 20000 tons. We introduced foreign advanced production technology for polymer modified bitumen waterproof membrane production line which has excellent equipment performance, membrane annual production capacity can reach 15 million. In addition, we increased the 4m production line except the original 2m production line of synthetic high polymer membrane, the annual production capacity can reach 6 million square meters.

To meet production demands, we have increased 200 million to build a largescale modernized production base in Qingyuan overseas industrial park, at the same time, we also introduce foreign advanced automatic production equipments, build a number of wide and synthetic polymer modified bitumen waterproof membrane production line, produce new type green environmental protection products and meet the social requirements.

We have the spirit of “ Quality first, Credit first” for customers. Under the support from all walks of life, our business has been booming. Twenty years focused on waterproofing, it has developed into a high visibility and reputation in the industry of enterprise.

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