Asphalt has good water resistance and durability, but also has drawbacks, such as poor flexibility, low elongation, low temperature easy to crack, especially hot and cold cold. Epoxy floor paint with petroleum asphalt as a base material, adding polymers to modify, made of modified asphalt waterproof coating; has a good overall performance. The modified asphalt waterproof coatings mainly include neoprene latex asphalt waterproof coating, SBS modified asphalt waterproof coating and water emulsion reclaimed rubber asphalt waterproof coating.
(1) Neoprene latex bitumen waterproof coating is a kind of water-emulsion waterproof coating sbs made of cationic chloroprene rubber latex and cationic asphalt emulsion as the main raw materials, adding paints and additives.
This kind of waterproof coating is characterized by good film forming property, excellent heat resistance of epoxy floor paint, good low temperature flexibility, good extensibility, can fully adapt to the change of base layer, ozone resistance, aging resistance, corrosion resistance, imperviousness, etc. A kind of low-toxic and safe waterproof coating. The disadvantage is that the film has low tensile strength and low solid content. It should be stored, transported and constructed at temperatures above 0°C.
Applicable to various shapes of surface waterproof, underground waterproof, leak proof, anti-corrosion, can also be used for biogas pool to improve impermeability and airtightness. If the coating thickness can be guaranteed, the service life can reach 10 years.
(2) Solvent-based neoprene asphalt waterproof coating is a waterproof coating made of solvent-based neoprene modified petroleum asphalt as base material 1401, with the addition of fillers and additives.
The waterproof coating has the advantages of cold resistance, heat resistance, crack resistance, aging resistance, strong adhesion, and easy operation. It can be applied in all four grades and can be applied in a -6°C environment. The disadvantage is that it contains organic solvents, is explosive and flammable, the film has low tensile strength, and the solid content is suitable for the adhesive bonding of linoleum waterproof, the waterproof maintenance of old buildings, and pipeline anticorrosion.
(3) Water emulsion type SBS modified bitumen waterproof coating is a kind of water-emulsion type elastic waterproof coating sbs made of petroleum asphalt with base material, SBS thermoplastic styrene-butadiene rubber, fillers and additives added.
SBS is a block copolymer of styrene and butadiene. The emulsion-based SBS modified asphalt waterproof coating has excellent low temperature flexibility and crack resistance, good adhesion, odorless, non-toxic, non-flammable, cold construction, and fast drying. Good weather resistance, no turbulence in summer, no cracking in winter, no brittleness, good for base materials of cement, concrete, wood, brick, foam, linoleum, iron, glass, etc. Bonding force is an ideal waterproof, moisture-proof and impervious material.
However, in practical applications, the compatibility of SBS modified bituminous waterproof coating is poor, and it is manifested that phase separation occurs easily during storage and use, thereby affecting its performance.
SBS modified asphalt waterproof coating can be combined with glass cloth or polyurethane non-woven fabric as a composite waterproof layer for roofing, walls, basements, toilets, reservoirs, warehouses, bridges, underground pipelines and other waterproof anti-seepage, also applies to vibration Larger industrial plant construction.
(1) Neoprene latex bitumen waterproof coating is a kind of water-emulsion waterproof coating sbs made of cationic chloroprene rubber latex and cationic asphalt emulsion as the main raw materials, adding paints and additives.
This kind of waterproof coating is characterized by good film forming property, excellent heat resistance of epoxy floor paint, good low temperature flexibility, good extensibility, can fully adapt to the change of base layer, ozone resistance, aging resistance, corrosion resistance, imperviousness, etc. A kind of low-toxic and safe waterproof coating. The disadvantage is that the film has low tensile strength and low solid content. It should be stored, transported and constructed at temperatures above 0°C.
Applicable to various shapes of surface waterproof, underground waterproof, leak proof, anti-corrosion, can also be used for biogas pool to improve impermeability and airtightness. If the coating thickness can be guaranteed, the service life can reach 10 years.
(2) Solvent-based neoprene asphalt waterproof coating is a waterproof coating made of solvent-based neoprene modified petroleum asphalt as base material 1401, with the addition of fillers and additives.
The waterproof coating has the advantages of cold resistance, heat resistance, crack resistance, aging resistance, strong adhesion, and easy operation. It can be applied in all four grades and can be applied in a -6°C environment. The disadvantage is that it contains organic solvents, is explosive and flammable, the film has low tensile strength, and the solid content is suitable for the adhesive bonding of linoleum waterproof, the waterproof maintenance of old buildings, and pipeline anticorrosion.
(3) Water emulsion type SBS modified bitumen waterproof coating is a kind of water-emulsion type elastic waterproof coating sbs made of petroleum asphalt with base material, SBS thermoplastic styrene-butadiene rubber, fillers and additives added.
SBS is a block copolymer of styrene and butadiene. The emulsion-based SBS modified asphalt waterproof coating has excellent low temperature flexibility and crack resistance, good adhesion, odorless, non-toxic, non-flammable, cold construction, and fast drying. Good weather resistance, no turbulence in summer, no cracking in winter, no brittleness, good for base materials of cement, concrete, wood, brick, foam, linoleum, iron, glass, etc. Bonding force is an ideal waterproof, moisture-proof and impervious material.
However, in practical applications, the compatibility of SBS modified bituminous waterproof coating is poor, and it is manifested that phase separation occurs easily during storage and use, thereby affecting its performance.
SBS modified asphalt waterproof coating can be combined with glass cloth or polyurethane non-woven fabric as a composite waterproof layer for roofing, walls, basements, toilets, reservoirs, warehouses, bridges, underground pipelines and other waterproof anti-seepage, also applies to vibration Larger industrial plant construction.
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