INTRODUCTION
DOPU-201 is an eco-friendly single component hydrophobic polyurethane grouting material. This chemical grouting material is produced by the reaction of blend polyols and isocyanate, and end-capped by isocyanate. The material can react rapidly with water, its volume expands, to form a water-insoluble foaming. This material can not only waterproof plugging, but also has a certain reinforcement and stabilization effect. It has been widely used in subway tunnels, water conservancy and hydropower, underground garage, sewer and other fields of waterproof leakage-plugging.
FEATURES
A. Good hydrophobicity and chemical stability.
B. With large permeation radius,solidification volume ratio and high water reaction rate.Reacting with water can release a lot of expansion pressure which push the slurry to diffuse to the depth of the crack to form a rigid consolidation.
C. Good chemical corrosion resistance against acid, alkali and organic solvents.
D. The coating is smooth, wear-resistant and free from mold.
E. Excellent adhesion with concrete base and other building materials.
F. The viscosity and setting time can be adjusted according to engineering requirements.
TYPICAL INDEX
|
item |
Index |
|
Appearance |
Tan transparent liquid |
|
Density /g/cm3 |
1.05-1.25 |
|
Viscosity /mpa·s(23±2℃) |
400-800 |
|
Setting time a/s |
≤420 |
|
Solid content/% |
≥78 |
|
Foaming rate/% |
≥1500 |
|
Compressive strength /MPa |
≥20 |
|
PS：Setting time can be adjusted according to customer needs； |
|
APPLICATION
A. Filling seam sealing and waterproof anticorrosive coating of Water tank, water tower, basement, shelter and other buildings;
B. Corrosion protection of metal and concrete pipe layer and steel structure;
C. Foundation reinforcement of underground tunnels and buildings and ground dustproof treatment;
D. The sealing and strengthening of deformation seams, construction joints and structural cracks in construction projects;
E. Sealing leakage and reinforcement of ports, wharves, piers, dams and hydropower stations, etc;
F. Wall protection and leak plugging in geological drilling, selective water plugging in oil exploitation, and water stop-gushing in the mine, etc.