1. Storage period
a. Each product has a storage period, according to international standards and domestic standards, the storage period means at room temperature (24℃). Acrylic glue at 20℃.
b. For acrylic products, the higher the temperature, the shorter the storage period.
c. For water-based products, if the temperature is below minus 1℃, it directly affects the product quality.

2. intensity
a. There is no different adhesive in the world, choose a special adhesive.
b. The strength of the adhesive itself is low, so it is not necessary to choose the product, otherwise, it will be overused and increase the cost.
c. Can not only pay attention to high initial strength, but also consider good durability.
d. High temperature curing adhesive performance is much higher than room temperature curing, such as high strength, good durability, to choose high temperature curing adhesive.
e. In addition to emergency or small area repair and continuous production of a acrylate adhesive (502 strong adhesive), it is not suitable for materials requiring high bonding strength.
other
a. White glue and urea-formaldehyde glue can not be used for bonding metal.
b. Adhesives that require transparency, polyurethane adhesive, optical epoxy adhesive, saturated polyester adhesive, polyvinyl acetal adhesive can be selected.
c. The adhesive should not be corrosive to the adhesive. Such as: polystyrene foam board, can not use solvent-based neoprene adhesive.
d. The adhesive with higher brittleness should not stick to soft materials.

3.Adhesive in the use of precautions:
a.For the adhesive of AB component, in the ratio, please follow the requirements of the instruction manual.
b. For the adhesive of AB component, be sure to stir well before use. Do not leave dead corners, otherwise it will not cure.
c. The sticky material must be cleaned, no water (except underwater curing glue).
d. In order to achieve high bonding strength, polish the adhesive as much as possible.
e. The design of the bonding joint is good or bad, which determines the bonding strength.
f. When the adhesive is used, it must be used now, and it must not be retained for too long. If it is rapid curing, it is generally not more than 2 minutes.
g. If you want high strength, curing fast, heating according to its condition, when gluing, it should not be too thick, generally 0.5mm is better, the thicker the bonding effect is worse.
h. When bonding the object, apply pressure or fix it with a fixture.
i. For higher strength, leave for 24 hours after bonding.
j. Single-component solvent-based or water-based, be sure to stir well when used.
k. For solvent-based products, after gluing, be sure to cool until it is not sticky to the hand, and then glue.