Dongguan construction joint expansion joint crack special putty type water-swelling waterstop strip product type customized size

厂家：

衡水德祥

规格：

20*30mm

型号：

腻子型

Water-swelling waterstop strip is an excellent waterproof material. With the support and recommendation of the vast number of designers and construction personnel, this material has been widely used in underground projects of various types of reinforced concrete self-waterproof structures for many years. Its excellent elasticity, extensibility and expansion water-stopping properties have become well-known throughout the country. The material's superior water resistance, chemical resistance, durability and weather resistance have been proven by its day and night service in underground shopping malls, underground garages, underground water diversion projects, caissons, flood control walls and other projects. Water-swellable rubber is a special material with water-swelling function made by mixing hydrophilic polyurethane material and rubber. When soaked in water, there are a large number of hydrophilic groups (-) in polyurethane. This group can be combined with a large number of water molecules through hydrogen bonds, which weakens the force between polymer molecules and causes the rubber volume to increase. Due to the role of hydrogen bonds, water molecules are firmly pulled together. Even under mechanical compression, the water will not be squeezed out. However, this water expansion is reversible. When the water swells, the rubber is in a dry state and the water evaporates. The size can be reduced and the original shape and function can be completely restored.
It has excellent elastic extensibility and swelling and water-stopping properties. The expansion rate in water can be adjusted between %-% to maintain the elasticity and extensibility expansion rate of the rubber without being affected by water quality.
, excellent water resistance, chemical resistance, durability, no harmful substances, no swelling precipitates, no environmental pollution.
, It can exert excellent water-stopping performance in a wide temperature range and has excellent weather resistance.
The sealing tape sealing ring can be made into any shape according to the user's needs and can be combined with general rubber to make a composite waterproof material.