SPU Sealant Video

Product Information

One Component SPU Sealant

Sealants are materials used to fill voids (cavities, joints). Sealant in use is a kind of flow or can be extruded indeterminate material, can be embedded to close the joints, can rely on drying, temperature changes, solvent evaporation. Sealant in use is a flowing or extrudable material, can be embedded closed joints, can rely on drying, temperature changes, solvent volatilization Can rely on drying, temperature changes, solvent volatilization and chemical crosslinking and other processes to achieve stable adhesion with the substrate, and gradually Stereotypes for plastic solid or elastic, waterproofing, sealing, vibration damping, anticorrosion and so on. Sealing materials.

The base polymer for silicone-modified polyurethane sealants (also known as SPU sealants) is a silicone-modified polyurethane (also known as SPU prepolymer). It is produced by the addition of a silane containing an amine group to a polyurethane prepolymer with an end-NCO group. Silicone-modified polyurethane sealant inherits the characteristics of end-silane structure and main chain polyether bond structure in structure, and synthesizes the advantages of polyurethane sealant and silicone sealant in performance.

Performance Parameters:
Color black paste
Surface drying time (min) 40±5
Curing speed (mm/24h) 3±0.5
Density (g/ml) 1.2±0.1
Hardness 50±5
Tensile strength (mpa) ≥5.0
Elongation at break (%) ≥350
Shear strength (mpa) ≥4.0
Tear strength (mpa) ≥20.0

Company Information

Our company's main export products include

(1)Petroleum Resin

Petroleum resins are named after the petroleum derivatives from which they are derived. They are characterized by low acid value, good miscibility, resistance to water, ethanol and chemicals, chemical stability to acids and bases, viscosity regulation and good thermal stability. Petroleum resins are generally not used alone, but as accelerators, modifiers, modifiers and other resins.

(2)Polyaluminum Chloride

Polymerized aluminum chloride (PAC) is an inorganic material, an emerging water purification material, inorganic polymer coagulant, referred to as polyaluminum. It is a water-soluble inorganic polymer between AlCl3 and Al(OH)3, with the chemical formula [Al2(OH)nCl6-n]m, where m represents the degree of polymerization, and n indicates the degree of neutrality of the PAC product. n=1~5 is a highly charged polymerized cyclic chain with the Keggin structure.It can strongly remove microtoxic substances and heavy metal ions, with stable properties. Due to the bridging effect of hydroxide ions and polymerization of multivalent anions, the polymerized aluminum chloride produced is an inorganic polymer water treatment agent with large relative molecular mass and high electric charge.