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Water-Based PU waterproof coating , Made of water-based Polyurethane dispersion as main film -forming material , Adding pigments and fillers and other additives . Curing film through water volatilization .Product classification and specification : PU coating
Product classification
color
Specification
Construction method
UV / No-UV
white
25kg/barrel
Roller,brush,spary
Primer
Product classification
color
specification
Construction method
Water based Reaction type primer
A: white B:yellow
A:10kg/barrel B:1kg/barrel
Roller /brush
Product application and features:Water-based materials , Green and environmental friendly .Single component , instant use and easy to apply .Coating film has good water resistance, good corrsion resistance and Well imporosity .Long-term UV resistance .The PU coating film has high tensile strength , good elongation and excellent high and low temperature resistanceThe coating film is compact and fee from needle holes and bubbles .Technical date :
No
Item
Technical date
1
Soild content /%
≥60
2
Density/(g/ml)
报告实测值
3
Surface dry time /h
≤4
4
Hard dry time/h
≤12
5
Tensile strength/MPA
≥2.0
6
Elongation at break/%
≥500
7
Tear strength /（N/mm）
≥15
8
Bending at low temperature /℃
-35℃,No cracking
9
Water impermeability
0.3MPa，120min，imporosity
10
Elastic recovery/%
≥70
11
Bonding strength /MPA
Standard test conditions
≥1.0
Wet substrate
≥0.5
Applicable scope:Application to waterproof of roofing、 undergroud and Metal roof .washing and totile etc waterproof project . Working poins:Base layer treatment -Brush primer-Detail enhancement treatment-Coating film of large area--closing treatment-inspectionBase layer treatment: the base layer should be soild and dry and does not contain mud and sand ,litters;The internal corner should be treated into smooth arc; Handle the substrate when new the roof and metal roof ;Brush primer: Mix primer A and B as the percent 10:1 , stir thoroughly,then Mix with water as the percent 30%--50%, stir thoroughly and brush on the substrate, dosage 0.05~0.1kg/m2, dry time 10~20min, If have rest , can use in future .Detail enhancement treatment: The deformation seam , water fall opening , protruding pipe , eaves gutter , and gutter etc part , Set up enhanced waterproof layer or perform corresponding procedures according to requirements of treatment of key and difficult points .Coating film of large area : Can brush or spray . must be brush 2 to 3 times , During each pass of coating , should be wait 2~4 hours ,Brush the next time , Vertical construction.Closing treament: after waterproof layer area is finished , the waterproof layer should be closed , the closing treatment should be in compliance with the requirements of treatment of key and difficult points .Inspection: Do as the requirement of different area’rule .Transport and storage:1.Products of different types or specifications should be stored separately during storage and transportation.2.Against insolation and rain , the storage temperature should be 5℃-35℃.3.The storage period is one year .Precautions:1. No work is allowed to be carried out in snowy and rainy days or days with wind being 5℃ to 35℃。 2.Applicable to wet base surface: work can be carried out on the wet base surface as long as there is no visible water on the base surface , Therefore , it can be applied in rainy season . Notice : cannot work under blazing sun .3.The ambient temperature of work shall be 5℃-35℃。4. Before construction PU coating , Need Primer to handle the substrate .1.0mm Dosage 2.0kg/m2-2.2kg/㎡
