If you started repairing your fireplace or stove in a private house, then these works cannot be done without the appropriate materials that are designed to operate at elevated temperatures or exposure to flame. In this case, even a traditional cement mortar is undesirable. It is best to purchase a special purpose high temperature sealant. It can be used to perform a wide range of tasks. For example, for repairing a chimney, sealing a roof, fixing heat-resistant gaskets or sealing cracks in masonry.
Heat-resistant gaskets are fixed with such sealants in metal fireplaces and stoves. As for the sealing of the roof, these works are carried out at the junction of the chimney to the roof. To perform such work, experience is not required, as well as special training. To identify defects in the chimney system and the causes, you do not need to havegreat experience. Such areas give themselves away as abundant smoke at the moment when the ignition is carried out with solid fuel.
In order to select an adhesive material that will retain its structure for a long time after work is completed, you should have an idea about the available types of sealants. It is important to ask at what maximum temperature the composition can be operated.
Types of heat-resistant compounds
Before you purchase a heat-resistant sealant, you must understand its main types. Among other proposals, silicate and silicone compounds should be highlighted. The former are used for repairs under high temperature conditions. Operation is possible at maximum heating up to +1500˚С. As for silicone sealants, they are used exclusively for repairing objects where the temperature does not exceed +250˚С. These types are basic and suitable for repairing fireplaces and stoves.
The silicate variety is mainly used for the part of the chimney that comes after the main part of the heater. Such a composition is also suitable for a furnace firebox. Silicone glue has a rather low temperature resistance and is used to seal cracks in the chimney. It can also be used to seal the roof in those places where the chimney pipe adjoins.
These materials are capable of withstanding high temperatures as well as cooling down to -40˚C. In this regard, to repair the section of the chimney system that will be in contact with the external environment, you should useonly them.
Features of the use of pipe sealant
Heat Resistant Pipe Sealant should be applied to the prepared surface. The porous substrate must be moistened. Traces of the substance on the mating surfaces can be removed with a wet rag, however, it is necessary to act in this case until it is completely dry. After that, it will be possible to carry out such manipulations only mechanically.
Penosil sealant reviews
This composition dries within 15 minutes after application. The temperature of its operation reaches 1500 ˚С. The mixture has a black color and can be applied at temperatures from +5 to +40 ˚С. For one package you will have to pay 195 rubles.
This heat-resistant oven sealant is also claimed by consumers to be flame retardant. For a long time, it is able to withstand the maximum temperature without losing its properties. The material adheres well to the following types of surfaces:
- stone;
- brick;
- tile tiles;
- concrete.
Asbestos free. According to consumers, sealing cracks and filling joints is carried out as efficiently as possible. You can use the composition in conjunction with ovens, fireplaces, pipes, chimneys and heating systems. Application is carried out during the conservation and repair of furnace equipment, as well as during its installation.
As emphasized by buyers, has a highstrength of this heat resistant oven sealant. 1000 ° C and above - it withstands such temperatures. After hardening, it does not crumble, it is easily smoothed and well processed.
Application features
Before applying the mixture, the work surface must be freed from rust, dust, as well as grease and other contaminants. If the surface is non-porous, clean it with a lint-free cloth. The rag is pre-wetted with a solvent. Its remains must be removed with a clean rag.
Heat-resistant sealant is applied to porous surfaces that are pre-wetted with water. Work with a caulking gun. A spatula is also perfect for distributing the composition. After hardening is completed, the sealant warms up to +250˚С. Then it takes on a dark gray hue and becomes super hard. This heat resistant sealant can be removed with water if it has not yet cured. Otherwise, you will have to try using something sharp.
Reviews on Moment Germent silicone sealant
If you want to purchase high temperature silicone sealant, you should pay attention to the one mentioned above. You will have to pay 560 rubles for 300 ml. This is a mixture of red-brown color, it is one-component and is intended for sealing joints and sealing them if they are exposed to high temperatures during operation. Consumers emphasize that the material has a fairly wide area of use. It can beuse in the repair of car engines, sealing joints in chimney systems and in the repair, as well as the installation of heating systems.
This versatile heat resistant heating pipe sealant is capable of withstanding temperatures from -65 to +260˚C. A short-term increase to +315˚С is possible. Consumers emphasize that the material always remains waterproof and elastic, because it is based on silicone. The sealant is universal, you can work with it by applying it to different materials, namely:
- ceramics;
- glass;
- metal;
- wood;
- painted bases.
After complete drying, you can paint with acrylic paints. This versatile heat resistant heating pipe joint sealant is resistant to UV, weathering and chemicals like gasoline and engine oil. The tool is quick-drying, curing occurs in a day. This is true for a layer of 1.5 mm.
Gasket Maker reviews
This high temperature oven sealant has been reported by consumers to have excellent heat resistance. The operating temperature reaches 250˚C continuously and 300˚C for a short time. The material is highly durable and vulcanizes quickly. It is 100% silicone.
Customers love that the compound stays ductile at both high and low temperatures. It is not covered with cracks, the consistency does not settle. When exposed to moisture and water, the material remains stable. It is one componentcures at room temperature. The heat-resistant sealant of this brand, according to home craftsmen, is also good because it can be used in industrial furnaces and heating appliances. The composition is used for bonding and insulation in ovens.
Application features
In order to achieve the best result, the sealant should be applied at a temperature between +5 and +40˚C. The surface must first be cleaned of rust and degreased. The base is cleaned with a solvent to achieve better adhesion. Sealant can also be used on porous surfaces. If during the work you notice excess material, it can be removed with a solvent. Vulcanized sealant can only be removed mechanically.
It is important to consider that on some sensitive materials the composition may cause corrosion. These should include:
- zinc;
- copper;
- brass;
- mirror.
The mixture does not stain and is suitable for working with parts that will come into contact with fuel and surfaces on which oil will flow. Cannot be used on porous surfaces by type:
- concrete;
- stone;
- marble.
The first one should be coated with a primer before application. Use the product in a well-ventilated area.
BauGut sealant reviews
This compound is heat resistant and suitable for stoves and fireplaces in professional use. Metal, concrete can be sealed with a mixtureand brick. Excellent composition is suitable for repairing ovens, central heating systems and stoves, as well as sealing joints. It can be used to seal holes and fill gaps in fireplaces, stoves and pipes.
Customers love that seam sealing is possible in places where the material can be exposed to high temperatures. They can cover:
- tile tiles;
- stone;
- metal;
- concrete;
- brick.
Drying time is 5 minutes. Full polymerization time can reach 96 minutes. Temperature resistance reaches 1500˚С. This silicone black sealant is available in 0.31L.
In conclusion
Chimneys are one of the important communication systems of private houses. Comfortable living in the premises depends on the quality of their work. During operation, cracks and fistulas can form, which can reduce traction in the system. This entails the ingress of combustion products into the house, creating conditions under which soot settles on the walls of the chimneys. Today, special heat- and heat-resistant sealants are offered on the market for the repair of such equipment.
