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Anonymous users2024-02-16Glue is a material commonly used for repair in life, but for some special materials, such as metal, ceramic, cement or glass bonding and repair, the requirements for glue in addition to good adhesion, there is also a point of high temperature resistance. So what glue is resistant to high temperatures?
Organic high-temperature glue
Common organic high-temperature glues mainly include silicone glue, phenolic resin glue, temperature-resistant epoxy glue, etc., and the general high-temperature temperature of these glues is less than 400. Generally, in order to give these glues more properties, some functional fillers can usually be added, such as insulation, thermal conductivity, fire retardant, flame retardant, etc. Although they are resistant to high temperatures, these glues have other "properties", such as soft elasticity and hard rigidity.
Among them, the strength of epoxy adhesive bonding, temperature resistance and high-speed operation effect are also very good, so it is generally used in model aircraft, motors, functional ceramics and other fields.
Inorganic high-temperature glue
Before inorganic high-temperature adhesives, high-temperature adhesives could only withstand temperatures of 1300. The inorganic high-temperature adhesive can withstand high temperatures up to 1800 meters and can be used for a long time in fire. This high-temperature adhesive is made by polycondensation reaction of inorganic nanomaterials, through the screening of composition ratio and preparation process parameters, the obtained adhesive not only has strong adhesion, but also will not corrode the metal when used for metal bonding, and can maintain good adhesion and corrosion resistance even under high temperature conditions.
ZS-1071 high-temperature inorganic adhesive is commonly used in inorganic high-temperature adhesives, which can be used for direct bonding of high-temperature resistant materials. If you don't have any idea of the advantages of high temperature resistance, you can refer to this data: even if it is a high temperature substrate of 400-1000, this high temperature adhesive can be sprayed directly on the surface, and the coating can be instantly adhered to form a high-temperature resistant protective coating on the surface of the substrate while the moisture volatilizes, which is good in terms of compactness and thermal shock resistance.
Is 502 glue a high-temperature resistant glue?
502 glue is a kind of adhesive that we are familiar with in our lives and has good adhesion, so in some situations that require high-temperature repair and bonding, can 502 glue come in handy? Let's take a look at the curing principle of 502 glue: under the catalytic action of a trace amount of water in the air, 502 glue undergoes a polyaddition reaction and cures rapidly, so that the sticky matter will be firmly adhered to.
As for whether 502 glue can withstand high temperatures, we can also understand a thing or two from some experience in our lives: when the handle of 502 glue is sticky, the most common method is to immediately bring a basin of hot water, wet the towel for more than a dozen times, and the glue can be softened. From this point of view, 502 glue does not tolerate high temperatures, so the instructions for use of 502 glue will also have the words "storage below 25 degrees".
What glue is resistant to high temperatures? The adhesives introduced above can form good adhesion even at high temperatures, and are suitable for bonding materials such as asbestos, ceramics, and metals.
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Anonymous users2024-02-15Structural glues and silicones are resistant to high temperatures.
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Anonymous users2024-02-14Generally 50 C.
502 glue is a one-component instantaneous curing adhesive synthesized by advanced production process with the addition of tackifiers, stabilizers, toughening agents, polymerization inhibitors, etc., mainly ethyl cyanoacrylate. It is widely used in steel, non-ferrous metals, non-metallic ceramics, glass, wood and flexible materials such as rubber products, leather shoes, soft and hard plastics, etc., but for polyethylene, polypropylene, PTFE and other difficult-to-stick materials, its surface needs to be specially treated before it can be bonded.
502 glue is not resistant to high temperatures, and can even be softened quickly at a high temperature of 100 degrees, so 502 glue is in the instructions for use. There will be a sign that says "Store below 25 degrees". The temperature that 502 glue can withstand is generally around 50 degrees.
How to use 502 glue:
1. Clean the surface of the adhered object before use, remove the dust, oil, rust, etc. on the surface, and when bonding the metal, it is best to grind it roughly, and activate the surface of PE, PP and other plastics.
2. Open the front cover of the glue bottle, and gently buckle the tip with your fingers so that there is no residual liquid, and then cut out the hole with scissors.
3. Drop a small drop of this glue on the surface of the adherent, immediately bond, and keep it until it hardens, of course, the bonding area should not be too large.
4. Wipe the glue bottle clean after use, cover it tightly, and store it in a cool and dry place or refrigerated.
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Anonymous users2024-02-13The maximum temperature of high-temperature resistant 502 glue is about 50 degrees.
From the perspective of the composition of 502 glue, 502 glue is a one-component instantaneous curing adhesive synthesized by advanced production technology based on -cyanoacrylate ethyl ester, adding tackifiers, stabilizers, toughening agents, polymerization inhibitors, etc. Cyanoacrylate is an acrolein-based resin, so 502 glue is also a kind of resin glue.
502 glue can be washed off with an organic solvent that dissolves the resin. The melting point of resin glue is relatively low, so the melting point of 502 glue with the main ingredient -ethyl cyanoacrylate will definitely not be very high.
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Anonymous users2024-02-12Up to 50 degrees.
502 glue is based on ethyl cyanoacrylate in the liquid state, the boiling point is 54-56, the principle of bonding is to occur under the catalysis of trace water in the air, the polyaddition reaction occurs, and the adhesive will be bonded quickly, this binder is only relatively stable at room temperature and pressure, the temperature is high, and I remember that the hot towel can soften its bonding point, so the temperature that can withstand is not high, the highest is about 30-40.
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Anonymous users2024-02-11Loctite has a type of instant adhesive with high temperature resistance of 120 degrees Generally, 502 glue is resistant to high temperature of 70-80 degrees.
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Anonymous users2024-02-10502 is a common assistant in life, when the plastic products are damaged, it is the time when it plays its own function, and some families will often use 502 glue as an adhesive, so is 502 glue resistant to high temperatures?
502 glue is based on ethyl cyanoacrylate, adding tackifiers, stabilizers, toughening agents, polymerization inhibitors, etc., and is synthesized through advanced production technology as a one-component instantaneous curing and sticking, which can stick many things. Generally speaking, 502 glue is not resistant to high temperature, it will change in a high temperature environment, 502 glue is a kind of resin glue, and the melting point of resin glue is not high, this 502 glue will be washed off after using a solvent, the heat-resistant temperature of 502 glue is about 100 degrees, if you want to glue objects, often to use in a high-temperature environment, do not use 502 glue for the time being. Maybe friends will think of 502 when it comes to glue, 502 is not omnipotent, to understand some of the shortcomings of 502, to know which materials can not be bonded with 502.
502 is not an ideal glue, 502 glue is not resistant to high temperatures, and it will melt at about 100 degrees. 502 glue itself also has some shortcomings, such as weak curing, insufficient impact resistance, and fast aging rate, resulting in unsatisfactory pasting effect, all of which are its shortcomings. In fact, there are many high-temperature resistant glues in life, you can go to the store to consult which glue is more resistant to high temperatures, and then come to buy.
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