Water-stopper,is formulated with calcium aluminate cement,gypsum and other additives.it is hydraulic materials with characters of fast seting.rapidly hardening,high early strength and slightly expansive.

Water-stopper is based on the properties of calcium aluminate cements.when gypsum and other additives is available,it can from expansive crystalline hydrate after mixing with water,that is ,hydrate calcium sulphoaluminate,and also called entringite(C3A.3CaSO4.32H2O),and the dydrate object can produce slightly expansive,which is in use for filling in cracks and holes to bring pressure stress with circumjacent object and the hydrate itself gets densification.so the materials in the link can not appear contractive cracks,meanwhile,this kind of material possesses the property of more rapid setting and hardening than aluminate cement,the unit of strength exerting is denoted by minute,so it possesses entirely the properties and conditions of rapid stoping leakages and patching cracks.

At present,the rqpid stopping leakage agent in the market with alunite as raw materials has a little of alkali,once out of control,which will bring ill reaction so as to affect permanence of building.oh the contrary,material with aluminate cement as raw material,without expansive agent,excluding harmful alkali or chlorin,the stopping leakage only depends on hydrate itself to produce slight expansion and so to reach the purpose of stopping leakages and patching cracks,which makes the permanence and security of project ensured.it is a kind of safe,reliable,high efficiency,rapid and ideal stopping leakage materials.it can be used for urgent stopping water and patching cracks for all kinds of constructions,particularly suitable for rush repair and construction project of stopping leakages and patching cracks taking place on the underground project,bridge,reservoirs,cistem,tunnel,culverts,mines,ship and building and so on.

Usage and attention;

•  at first find the leaking spot or slot and chisel it to vertical bell shape.then clear away the sundries around the place.

•  pour one bag(2kgs) of the material and 0.6-0.7kgs water into a container and then stir them into plaster.

•  press the plaster with your hand or other object on the leakage direction promptly;keep on the pressing for a few minutes.usually,leakage can be stopped within 10 minutes.

•  after the leakage is stopped,ordinary Portland cement mortar can be used for the surface,and then 3 days maintain is needed.

•  water-stopper can be poured directly into leakage spot of pool or cabin,and then press it with your foot or other object on the spot for a few minutes until it gets hard.

•  draining method can be adopted in the situation of serious leakage slot.first,stop the upper part,and then stop the lower crack and finally the draining hole.

•  for stopping leakage of large area,the leakage spots should be found and stopped first according to the above method,and then plaster the surface with water-stopper mixed about 0.5% retarder.

•  the material should be stored in dry place,preventing from humidity and water.it should be depleted as soon as possible after the bag is opened.

•  water must be controlled strictly in order to avoid the grout too thin when mixing the material with water.

Technical data

Packing

water-stopper materials should be wraped in PE bag first,then in one carton or complex paper and plastic woven bag.

2.0kgs or 5.0kgs neat in PE bag.