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    胶粘剂的使用注意事项

    发布日期:2015-08-15浏览量: 371

      1.白乳胶和脲醛胶不能用于粘金属.

     2.要求透明性的胶粘剂,可选用聚氨酯胶、光学环氧胶,饱和聚酯胶,聚乙烯醇缩醛胶。

     3.胶粘剂不应对被粘物有腐蚀性。如:聚苯乙烯泡沫板,不能用溶剂型氯丁胶粘剂。

     4.脆性较高的胶粘剂不宜粘软质材料。

     5.对AB组份的胶粘剂,在配比时,请按说明书的要求配比。

     6.对AB组份的胶粘剂,使用前一定要充分搅拌均匀。不能留死角,否则不会固化。

     7.被粘物一定要清洗干净,不能有水份(除水下固化胶)。

     8.为达到粘接强度高,被粘物尽量打磨,

     9.粘接接头设计的好坏,决定粘接强度高低。

     10.胶粘剂使用时,一定要现配现用,切不可留置时间太长,如属快速固化,一般不宜超过2分钟。

     11.如要强度高、固化快,可视其情况加热,涂胶时,不宜太厚,一般以0.5mm为好,越厚粘接效果越差。

     12.粘接物体时,最好施压或用夹具固定。

     13.为使强度更高,粘接后最好留置24小时。

     14.单组份溶剂型或水剂型,使用时一定要搅拌均匀。

     15.对溶剂型产品,涂胶后,一定要凉置到不大粘手为宜,再进行粘合。

    Oneproduct recommendations/matters needing attention of adhesive

    1White latex and urea formaldehyde adhesive can not be used for bonding metal

    2If you need adhesive for transparency, you can choose polyurethane adhesiveoptical epoxy gluesaturated polyester adhesive and Polyvinyl acetal adhesive.

    3The adhesive should not corrode adherend. For example, solvent based adhesive for chloride is out of commission.

    4Brittle high adhesive should not be adhered to soft materials.

    5The AB component of the adhesive, in proportion, please ratio according to the instructions.

    6The AB component of the adhesive must be fully mixed before use. It can not remain blind angle, otherwise it will not cure.

    7The adherend shall be cleaned up and can not have water. (except underwater curing adhesive)

    8In order to achieve high bonding strength, the adherend should be polished as much as possible.

    9The quality of bonded joint design determine the level of adhesive strength.

    10When using the adhesive, it must be now with the current and not be too long retention time. In the case of fast-curing, it usually does not more than two minutes.

    11If high stronger, fast curing, then heating is depending on their situation. When gluing, it shall not be too thick, generally 0.5mm for the best. The thicker of gluing, the worse the effect of bonding.

    12When bonding object, preferably put a fixed pressure or fixture.

    13To make higher strength, better adhesion retention after 24 hours.

    14One-component water or solvent-based formulations should be used to stir evenly.

    15For solvent-based products, after coating, it is appropriate to set to dry little sticky then glue. 


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