Crystal signs are generally made of epoxy crystal glue or PU crystal collagen material.

Required equipment and consumables:

Basic equipment:

1. Digital display electronic scale, vacuum degassing machine;

2. Glue dispensing platform;

3. Plastic cup for mixing glue, stirring rod, plastic glue dispensing pot, double-sided tape.

Cleaning agent: absolute ethanol.

If conditions permit, the following equipment can be added: oven, automatic glue dispenser, etc. (You can add me at 532687535) Understand.

1. The manual operation process is as follows:

1. First put the prepared various substrates, such as PVC, plastic trademarks, and metal badges into the oven to preheat at 60 degrees Treatment, the purpose is to remove moisture from the surface.

2. Place the dehumidified substrate flat on a level operating table and wait for dripping.

3. According to the dosage, take a clean beaker, measure accurately, mix components A and B in a weight ratio of 2:1 and stir evenly (be sure to mix evenly, otherwise the surface will be sticky and sticky) The phenomenon of delamination from the substrate must be achieved by all manufacturers' products) (Note: The proportions of each manufacturer are different and depend on the actual situation). 4. Then put the prepared mixture into the vacuum drying box, turn on the vacuum pump, and remove the bubbles in the mixture under vacuum.

4. Take a clean syringe, suck the defoamed crystal glue into the syringe, then measure and drip evenly onto the pre-prepared substrate (ie: signs, trademarks, etc.) On the surface, the general thickness of the crystal glue layer is 2mm, just let it level naturally (note: the above process is controlled within 30 minutes to avoid the increase in glue viscosity, resulting in inoperability).

5. 3-5 minutes after the crystal glue is instilled on the substrate, observe whether there are bubbles or dust particles on the glue surface. If there are small bubbles, use a pin to puncture them. If there is no flow in the dead corner, Wherever the crystal glue reaches, just use a pin to transfer it.

6. The poured sign will be cured at room temperature of 20℃-30℃ for 10-24 hours to harden and become a crystal sign that does not stick to your hands.

7. In the case of stickers, trademarks, etc., the thickness is very thin and the boundaries are not obvious. When pouring, it is easy to cause the crystal glue to overflow. It is difficult to reach a thickness of 2mm, so the crystal glue must be made with confidence. Depending on the situation, control the viscosity well. During the application process, it can be left for 1-2 hours to increase the viscosity and adapt to the pouring of thin crystal glue.

7. To make a crystal glue sign with a thickness greater than 2mm, it can be dispensed twice. After the first dispense, cure for 3-5 hours and then add another layer.

8. Cleaning after dispensing, whether it is manual dispensing or automated dispensing, the machinery, equipment, and containers need to be cleaned after completion, because the crystal glue is insoluble in any solvent after hardening, so it must Before it hardens, the machine and container need to be cleaned (recommendation: use acetone or absolute alcohol).