Silicone is used to seal passages of water, oil and even air. There are many types of silicone adhesives including RTV silicone that is used in a variety of purposes. It stays manipulable even after it has cured, yet does not lose its strength to hold the materials. It is quite a common choice in construction, automotive as well as visual arts.
There are various types of silicone adhesive. One is the high temperature that is most suitable when exposed in intensely hot environment. It is commonly used to take care of the heating and ventilation systems including chimneys and ducts. It can withstand the extreme temperature and other conditions.
Another type is the rubber adhesive. Boat builders use it to seal their rubber boats because of its waterproof ability. It is durable enough to hold up any cracks as well as quick deterioration. It may be used for both indoor and outdoor purposes.
The room temperature vulcanizing, or more commonly known as RTV, silicone is used to repair household fixtures. It does not matter if it is fabric, glass or metal. It cures the material fast because it starts drying the time it is exposed to the air. It can be used to repair household fixtures, whether it is fabric, glass or metal. It does not have a stinking odor and is not corrosive to aluminum and steel.
There are many advantages along with the use of RTV silicone rubber. It is known to have the best release properties especially when doing production casting of resins. There is no release agent needed thus you do not have to do post production cleanup. They are resistant to chemicals as well as high temperature environment.
Then again, consumers pay an expensive price for its good quality. It is said to have poor resistance to tearing and has short tooling time due to its skin formation. You have to handle it carefully as it may produce bubble while you are pouring it onto the material. It also gets swelled by nonpolar solvents.
The amount of the curing agent will mostly depend on the preference of the customer. More curing agent will be added if they need it to dry and demold fast. Less agent will be added if it could be let dry and demold slowly. If the client desires a smooth finish, then it should be polished.
Proper storage should also be considered. Make sure that the storage area has the right temperature to keep the potency of the sealant. Before actually using it, like any other product, you should take a look at the label for its expiration date. Some sources note that it retains its effectiveness even if it is beyond its expiration date given that it has been stored correctly. In testing its effectiveness, you may just take a small sample for application test.
The budget and quantity is given most consideration in choosing the best material. RTV silicone has many features to offer to the consumers. They are not difficult to operate and it has good flowability. It has a favorable hardness and is able to resist ageing.
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Author: Faye HunterThis author has published 2 articles so far.