Liquid raw material, starting in the 1940s, in 1953 the United States REBurnettV.K.Krieble more research methacrylic ester glycol bis curing characteristics found acrylate, the peroxide and other additives added later through research, made of plastic types with practical value, at present, it has been widely used in aviation, military, general machinery, transportation machinery, oil pipes, industrial piping and civil pipeline, mold manufacturing.

    Outline

    Development of liquid raw material (anaerobic) began in the 1940s, and in 1953 the United States REBurnett VKKrieble research methacrylic esters found more glycol bis acrylate curing characteristics, and later joined by research peroxide additives, etc., made of plastic types with practical value, at present, has been widely used in aviation, military, general machinery, transportation machinery, oil pipes, industrial piping and civil pipeline, mold manufacturing. Due to the use of anaerobic, only leak-free development. Due to the low density polyethylene bottle full contact with oxygen (air) so that glue is stable when used in metal gap (such as pipe thread, flat flanges, circular parts such as packages with the gap) and oxygen (air) isolated when, due to the induction of catalytic metal ions to form free radicals, which initiate the formation of polymer chains, eventually cure to a solid polymer having excellent sealing and locking properties, i.e. thermoset, the operating temperature to + 150OC -55OC aging resistance is usually better than steel. Also known as anaerobic liquid raw material, the English name:. Anaerobic adhesive liquid raw material used in China's history since the 1980s, currently has a number of manufacturers.

    Instructions

    1, remove the oil pipe thread, and dried.
    2, the pipe threads coated with a sufficient amount of glue, then assembled, to stand.
    3, after the installation is screwed tight within three minutes and adjust the angle after curing is not appropriate to adjust.
    4, for the steel, copper, iron pipes, ambient temperature above 25 ℃, 24 hours after installation pressure test;
    5, for stainless steel, aluminum, steel time should be extended twice.

    Precautions

    1, metal, oil and debris can not be mixed in the bottle.
    2, DN65 pipe thread above must be inside and outside the double-sided adhesive, or part of joint leakage may occur.
    3, extruded from the tube of tooth due to contact with oxygen and permanent glue will not cure.
    4. If using a pipe wrench is not easy to disassemble. Available gas heating gun disassembly.
    5, this product has the strength, high strength type, see the bottles instructions.

    Installation process Notes

    1. Before installation do protection work, the liquid raw material with a chemical product, should avoid direct contact with the body, or else may have allergies or minimally invasive port operators produce adverse reactions.
    2. The selection of internal and external pipe threads are tapered threads try to achieve better co-ordination of the glue so that oxygen can be completely isolated, as with the degree of bad will affect the adhesive curing (or if the choice of straight pipe diameter of DN50 above specifications, when the adhesive glue both internal and external threads would be better).
    3. Before coating should try to clear the internal and external threads on the grease, paint and other fixtures, exposed metal color, excessive gum deposits would not be bonded together with metal thread, it may affect the sealing effect.
    4. When the glue should be applied in a continuous full circle, painted 3-4 teeth, if there is a suspension in the glue-coated thread fake phenomenon, use brush, wood glue and other tools will be spread evenly .
    5. Try to install one by one from start to finish installation joints, can be tightened, preventing excessive force required to cause the previously installed solidifying joint follow rotation, breaking the seal effect of the product, resulting in leakage.
    6. After construction, excess exposure to the air of liquid raw material because there is no cut off oxygen, such as the situation does not appear curing is a normal phenomenon.

     7. The product is only available in sealed metal pipe threads, other joints, such as plastic is not recommended to use liquid raw material seal.
     8. The seal can not be used pure oxygen and strong oxidants medium.
     9. suitable above 150 ℃ temperature conditions of blockade of solid pipe thread.
     10. The use of liquid raw material belt sealing, avoid and PTFE raw material belt, flax and other sealing materials used in combination.