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AH-508A Senior all-purpose adhesive
AH-508A senior all-purpose adhesive is a hi-tech product developed
by our company. It is made of many kinds of senior Fine Chemical Raw
Materials with updated formulation and improved production technology.
It has the features such as wide application, excellent performance
and convenient usage.
[Appearance] Adhesive in group A is grey thickened
liquid, while that in group B is light yellow or red brown thickened
liquid.
[Features] It is a double-troop curing adhesive with
its normal temperature between 10℃ and 40℃. It can be heated and cured,or
even adjusted into many different colors. It has such features as
high splicing strength, good sealability, and water resistance, boiling
water resistance, oil resistance, insolation resistance, dilute acid
resistance and alkali resistance. The service temperature is -50～120℃
while its transient service temperature is 150-220℃. It is also insulated.
[Purpose] it can be used to bond things such as metal,
glass, ceramic, stone, concrete, bamboo and wood articles, vulcanized
rubber, leather, some plastic and woven cloth. It can be used between
materials of the same or different kinds, and used to mend the crannies,
repair the defects, strengthen the structures and seal the containers.
It is also widely applied in many fields such as metalworking, electronics,
aerospace equipment, transportation equipment, instruments, pipes
and valves and war and civil industries.
[Use] (1) Surface treatment: Clean and dry the surface
of the thing which needs bonding or mending. Remove its oil stain,
iron mould, dust, etc. It is normal to use solvents such as acetone
and absolute ethyl alcohol or cleaning agent to clean the surface
or treat it with mechanical methods such as polishing and sandblasting.
However, chemical treatment can increase its bonding strength, especially
for some plastic which is difficult to bond.
(2) Adhesive preparation: Group A: Group B = 2 : 1. Mix the adhesives
in Group A and Group B well and completely. The adhesive should be
used up within 30 minutes after being mixed. Adhesive preparation
can be done in the plate or board made of metal, glass or plastic
as well as special container for mixing. But the tools and containers
for adhesive preparation must be kept dry and clean.
(3) Adhesive spreading: the adhesive which has been prepared can be
spread with tools such as scraper, small bar or writing brush onto
the surface of the treated article which needs bonding or mending,
or spread with double-troop auto adhesive-spreading machine. The surface
of two articles should be painted with average and proper adhesive.
(4) Bonding: Join properly the articles which have been painted with
adhesive. It is better to squeeze out a small circle of adhesive after
bonding. If you find the adhesive is not enough or there is a gap
between two articles, you should add the adhesive immediately, while
if there is remaining adhesive, you should remove it before curing.
In the initial stage of bonding, you can fix the articles by clipping
with tools, tying with tapes or orienting with instantaneous adhesive
and avoid the adhesive flowing in the same time. If the adhesive is
used to patch or mend the articles, you should stick fiber cloth and
metal pieces or twine the cotton thread and iron wire after the surface
of articles is painted with adhesive.
(5) Curing: The articles are cured initially within 3 hours after
bonding. They can be used in 24 hours. They enjoy high strength 5
days later. Curing by heating can reduce the curing time with better
performance.
[Bonding strength] (Room temperature): The articles
such as glass, ceramics, concrete and bamboo or wood ware will be
pulled without adhesive failure. Cutting strength: 45# steel ≥19.6MPa,
Aluminum alloy ≥17.6MPa, red copper≥9.8MPa, and tensile strength≥29.4MPa.
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