[China Glass Net] 1. How should the insulating glass be glued to the hand and the glass should be cleaned?
Answer: After the hollow glass glue is cured, it is not sticky. It can be rubbed with a few hands. If the insulating glass is glued on the hand or the glass is not cured, use a clean cloth strip to dip some acetone or xylene or solvent No. 120. Oil (The above three solvents can be purchased at chemical stores, and the general chemical stores have acetone.) If the insulating glass is glued to the glass, it can be cured.
2. What is the reason for neutral yellow plastic yellowing?
A: Neutral transparent plastic yellowing is a defect in the glue itself, mainly caused by the cross-linking agent and tackifier in the neutral rubber. The reason is that the two raw materials have an "amine group" and the amine group is extremely It is easy to cause yellowing, and many imported brand-name insulating glass glues are also yellowing. In addition, if the neutral transparent adhesive is used together with the acid insulating glass glue, it may cause the neutral glue to turn yellow after curing; it may also be caused by the long storage time of the glue or the reaction between the glue and the substrate.
3. What is the cause of wrinkling on the surface after neutral gel curing?
A: There are generally several reasons:
First, the expansion coefficient of the substrate is large;
Second, there is displacement or vibration;
Third, some domestic rubber itself is too thin, the filler in the rubber is less and the plasticizer (white oil) is added. During the curing process, the plasticizer (white oil) has a certain degree of volatilization, which makes the volume of the glue smaller. Therefore, the glue will shrink and wrinkle; Fourth, if the sizing is too thin to cure, it is easy to shrink and wrinkle, and the thickness of the thickening sizing can reduce the occurrence of this phenomenon (recommended sizing 2mm or more).
4. Why is acid glue used on cement to fall off easily?
A: This is actually a basic problem in the application of insulating glass glue. Acidic acid produces acetic acid during solidification and reacts with the surface of alkaline materials such as cement, marble, granite, etc. to form a chalky substance that causes shedding.
5. After the neutral glue is dry, there are powdery things on the surface. What is the reason?
A: There are generally several situations:
First, the phenomenon of powdering of the rubber strip is a defect in the raw material selection of the glue itself;
Second, the raw materials are mixed unevenly;
Third, due to the influence of the construction environment, the dust is more likely to be adsorbed on the surface of the rubber.
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