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    Home > Coatings News > Paints and Coatings Market > General knowledge of adhesives for industrial use

    General knowledge of adhesives for industrial use

    • Last Update: 2021-02-10
    • Source: Internet
    • Author: User
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    1, how to remove the threaded lock glue "permanently" locked fixed device?
    must be heated, and the heating temperature exceeds 230 degrees C to separate it. Do not remove the fixture with a hand tool.
    2, adhesive stick my work pieces for 5, 10, 20 years?
    testing the durability of the adhesive is difficult, and some methods help test the life of the adhesive to determine the actual time the work piece can be glued, such as high temperature, aging, and high humidity

    . The most accurate way to determine the bonding time of the work piece is to allow the work piece to age over a period of time. The best way to estimate bonding time is to evaluate the bonding life of a new product by comparing it with a product that already knows the service life and performance ratio in aging testing. The longer the product requires bonding life, the more important it is to detect the aging of the product.
    3, how to deal with the water vapor and odor emitted by quick-drying glue?
    the water vapor and odor emitted by the fast-drying glue are irritating, and workers should not be exposed to them for long periods of time. Typically, "low volatility" or "low alface" can control this irritating odor. Ventilation and wearing masks are necessary for workers.
    4, when using quick-drying glue found that the bonding area has white mist, it is harmful? How to eliminate it?
    this phenomenon, commonly known as "whitening" or "frosting", occurs in the curing process with fast-drying glue. Al whitening usually occurs during the most humid summer months, and it also causes a strong curing reaction when an excessive amount of accelerator is used. In some cases, the user does not fully cure the product before assembling it in a closed area to prevent water vapor from evaporating.
    5, cold temperatures crystallize the catalyst? How do I use it?
    heat it to 45-65 degrees C until the catalyst used dissolves, mixes well and cools them to 35 degrees C before use.
    6, how to choose the right coating material?
    mainly consider the following factors:
    A, plate surface and component protection performance and reliability in harsh environments, such as temperature range, pressure tolerance, etc.;
    B, the volume of the adhesive equipment and the applied plate surface;
    C, environmental and worker safety factors;
    D, cost and configuration;
    E, repair indicators
    7, cladding materials, there are several methods of applying glue?
    the four most common methods are spraying, impregnation, brushing. Flow coating (painting).
    how long does it take for anaerobic glue to cure?
    As the name implies, anaerobic gels produce chemical reactions when they do not come into contact with air, and the general curing time is from a few minutes to more than ten minutes, and the curing rate varies depending on the material and the base coating. Heating accelerates curing speed.
    9, why only half a bottle of anaerobic glue?
    prevent anaerobic gels from solidifying due to lack of oxygen.
    10, curing anaerobic glue, I want to use a bottom coating?
    most metal surfaces do not need to be coated. The base coating is recommended for non-metallic surfaces of anaerobic adhesives to accelerate curing.
    11, how long does it take for the bonding part to work?
    depending on the adhesive and substrate, it takes 15-20 minutes to cure the threaded lock fixing adhesive and is resistant to vibration for one hour. Instant solutions usually take only a few seconds.
    12, when should I use a base coating or surface promoter?
    treatment of low surface energy active substrates, such as plastics, usually requires enhanced adhesion to achieve sufficient bonding strength. The selection of the base coating model depends on the application.
    13, the bottom coating should be used on both sides?
    most cases only need to apply the poor side of the adhesion relay. Double-sided coating is usually required if very fast curing times are required or if gaps in the bonding area have gaps greater than 0.15. When using the base coating, it is best to do less.
    14, what needs to be done on the surface before using the adhesive?
    if there is a small amount of oil on the surface, threaded latches and sealants can be used without surface treatment. To have a sufficient bonding effect, the grease thick film and the pollution material need to be removed. For building adhesives and instant adhesives, tests must be performed to determine the acceptance of the processing surface. In general, end users apply the least complex machining surfaces.
    15, refrigeration will extend the shelf life of the adhesive?
    refrigeration extends the shelf life of the quickener before it is turned on. Extending the shelf life of anaerobic gum, the role of refrigeration is not obvious. Please refer to the storage conditions on the product packaging label.
    the shelf life of the adhesive at 16?
    refers to the time from the date of manufacture to the time of failure of the product. The shelf life of different products and models is not consistent, for more information please contact us.
    17, how many adhesives do I need?
    is enough to fill out the bonding area. Extra glue will be wasteful and will overflow, not easy to clean. Automatic adhesive equipment controls the continuous use of adhesives on the production line. How many drops per tube, per bottle, per liter, per pound? Depends on the rate at which the liquid flows.
    18, how to speed up the curing speed of silicone RTV sealant?
    the adhesive cured at room temperature depends on the change in room temperature and moisture. The higher the temperature, the greater the moisture and the faster the curing speed. Curing is carried out from the surface to the in. Within about 24 hours, the 2MM thick portion becomes a rubber solid. The thicker the sealing part, the longer it will take to cure. Proper heating can shorten the curing time.
    19, can I use silicone on the paint?
    most of the glue can be used on a dry paint surface, but not on the surface of the glue.
    20, RTV?
    RTV is a short version of Room Temperature Vulcanize, which means vulcanization (curing) at room temperature.
    21, can you change the viscosity strength or other properties to suit our application?
    we have many adhesives with different bonding strengths and these products meet many requirements.
    22, do you have a conductive adhesive?
    we have thermal and electrical conductivity.
    difference between 23, watering and encapsulation?
    watering refers to the embedding of an electronic original in a container containing insulated or protective materials. The package is a more common term for overlaying, wrapping or protecting as if placed in a capsule.
    24, how to prevent glue from flowing out of the bonding area?
    choose the right viscosity and the right method of use. The denatured adhesive also prevents flow.
    25, what happens to your adhesive at low temperatures?
    most products can maintain good performance at very low temperatures for better protection, such as silicone products, which maintain excellent elasticity at temperatures of minus 30 degrees or less.
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