Most waterproof sealant when safe and nontoxic, especially after curing, but some of the components prior to curing of the sealing adhesive may contain organic solvents, irritating odor and harmful substances that may cause nausea, headache, long after sniffing, so the use of should be noted that the protection of health. In addition thinner, organic solvents or flammable substances, should pay attention to fire and explosion. The so-called toxic substance means that the substance in the case of micro-invasive body, physical or chemical effect occurs with human tissue can cause destruction of the body's normal physiological function, called poisoning. This substance is called toxic substances. Poisoning is divided into acute poisoning and chronic poisoning; acute poisoning is suddenly invaded by a large number of human-induced poison poisoning; chronic poisoning is the result of a small amount of poison into the human body for long. Chronic poisoning is evolving, no obvious symptoms of poisoning began. Waterproof sealant is applied during mixing or free of low molecular substances such as ammonia, an acrylic monomer, formaldehyde, phenol, hydrogen isobutyl ester and the like, the respiratory system, blood system, stimulation of the skin has a certain protective measures : First of all should be aware of the use of toxic waterproof sealant and dangerous. Bonding in the workplace, should be well ventilated and timely discharge gas, keep the air fresh, the Toxic Substances Control within the limits prescribed by. Electrical equipment and lighting should be explosion-proof. Bonding sites open flame is prohibited, not smoking, not eating. Put on overalls operation, wear a mask and gloves. Weighed, mixed with glue or isolated operation should be carried out in a well ventilated place, reducing toxicity. Minimize direct human contact with glue. If the glue on your hands or on the skin, can be used acetone to erase, try to avoid washing hands with solvents, degreasing prevent chapped, the best wash your hands with warm water and soap. Solvent or water immediately after the sealant with reclosable seal and away from the fire to prevent fire. Has a fire apparatus to prepare some emergency medicine. If you want to know more information, please visit (waterproof sealant http://www.weizhili.com) Website