If you started repairing your fireplace or stove in a private house, then these works cannot be performed without the appropriate materials, which are intended for use in conditions of elevated temperatures or flame exposure. In this case, even a traditional cement mortar is undesirable. It is best to purchase a high-temperature sealant for special purposes. It can be used to perform a wide range of tasks. For example, for repairing a chimney, sealing the 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 in places where the chimney adjoins the roof. To perform such work, experience is not required, as well as special training. To identify defects in the chimney system and the reasons you do not need to have much experience. Such areas give themselves out by heavy smoke at the moment when solid fuel is ignited.
In order to choose an adhesive material that will retain its structure for a long time after completion of work, one should have an idea of 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 get 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 in high temperature conditions. Operation is possible with maximum heating up to + 1500˚. As for silicone sealants, they are used exclusively for repairing facilities where the temperature does not exceed + 250 ° C. These types are basic and are suitable for the repair of fireplaces and stoves.
The silicate variety is used mainly for the part of the chimney that goes after the main part of the heater. Such a composition is also suitable for a furnace furnace. Silicone glue has a fairly 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 adjoins.
These materials can tolerate high temperatures, as well as cooling to -40 ° C. In this regard, for the repair of the chimney system, which will be in contact with the external environment, you should use only them.
Features of the use of sealant for pipes
Heat resistant pipe sealant should be applied to the prepared surface. The porous base 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 completely dry. After that, such manipulations can only be carried out mechanically.
Penosil Sealant Reviews
This composition dries within 15 minutes after application. The temperature of its operation reaches 1500 ° C. The mixture has a black color and can be applied at temperatures from +5 to +40 ˚. For one package you will have to pay 195 rubles.
This heat-resistant sealant for stoves, according to consumers, is also fireproof. Over time, it is able to withstand the maximum temperature without losing its properties. The material adheres well to the following types of surfaces:
- a stone;
- brick;
- tiled flooring;
- concrete.
Asbestos free. According to consumers, sealing gaps and filling seams is carried out as efficiently as possible. You can use the composition in conjunction with ovens, fireplaces, chimneys, chimneys and heating systems. Application is carried out during the conservation and repair of furnace equipment, as well as during its installation.
As buyers emphasize, this heat-resistant sealant for furnaces has high strength. 1000 ° C and above - it withstands this temperature. After hardening, it does not crumble, is easily smoothed out and well processed.
Application features
The working surface before applying the mixture 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 solvent. Its remains must be removed with a clean cloth.
Heat-resistant sealant is applied to porous surfaces that are pre-wetted with water. Work should be done with a sealant gun. A spatula is also ideal for distributing the composition. After solidification is completed, the sealant warms up to + 250 ° C. Then it takes on a dark gray hue and becomes superhard. This heat-resistant sealant can be removed with water if it has not hardened. Otherwise, you will have to try using something sharp.
Reviews on the silicone sealant "Moment Germent"
If you want to purchase a heat-resistant 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 their sealing, if during operation they are exposed to high temperatures. Consumers emphasize that the material has a fairly wide scope. It can be used in the repair of automobile engines, sealing joints in chimney systems and in the repair, as well as the installation of heating systems.
This universal heat-resistant sealant for heating pipes is able to withstand temperatures from -65 to + 260 ° C. Perhaps a short-term increase to + 315˚. Consumers emphasize that the material constantly remains waterproof and flexible, because it is based on silicone. The sealant is universal, you can work with it by applying to different materials, namely:
- ceramics;
- glass;
- metal;
- wood;
- painted bases.
After complete drying, it is possible to stain with acrylic paints. This universal heat-resistant joint sealant for heating pipes is resistant to ultraviolet, precipitation and chemicals like gasoline and motor oil. The tool is quick-drying, curing occurs in a day. This is true for a layer of 1.5 mm.
Gasket Maker Sealant Reviews
This heat-resistant sealant for the oven, according to consumers, has excellent heat resistance. Operating temperature reaches 250 ° C constantly and 300 ° C for a short time. The material is high strength and cures quickly. It is 100% silicone.
Customers like the composition to remain ductile at high and low temperatures. It is not covered by cracks, the consistency does not settle. When exposed to moisture and water, the material remains stable. It is one-component, vulcanized at room temperature. Heat-resistant sealant of this brand, according to home masters, is also good because it can be used in industrial furnaces and heating devices. The composition is used for bonding and insulation in furnaces.
Application features
In order to achieve a better result, the sealant should be applied at a temperature of +5 to + 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 operation you notice excess material, it can be removed with a solvent. Vulcanized sealant can only be removed mechanically.
It is important to note that on some sensitive materials, the composition can cause corrosion. This should include:
- zinc;
- copper;
- brass;
- mirror.
The mixture is not painted and is suitable for working with parts that will come in contact with fuel and surfaces on which oil will flow. Cannot be used on porous surfaces by type:
The first should be coated with a primer before application. Use the product in a well-ventilated area.
BauGut Sealant Reviews
This composition is heat-resistant and is suitable for stoves and fireplaces in professional use. Sealing with a mixture can be metal, concrete and brick. Excellent composition for repairing ovens, central heating systems and furnaces, as well as sealing joints. It can be used to seal holes and fill gaps in fireplaces, stoves and pipes.
Customers like that sealing joints is possible in places where high temperatures can affect the material. They can be covered:
- tile
- a rock;
- metal;
- concrete;
- brick.
Drying time is 5 minutes. The full polymerization time can reach 96 minutes. Temperature resistance reaches 1500˚. This silicone black sealant is sold in a volume of 0.31 liters.
Finally
Chimneys are one of the important communication systems of private houses. Comfortable living indoors 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, the market offers special heat and heat resistant sealants to repair such equipment.