Learn How to Use LOCA Glue to Replace LCD Screen of Mobile Phone / Smartphone

What is LOCA Glue?


LOCA or Liquid Optically Clear Adhesive is sort of special UV glue or sealant used to bond display / LCD Screen and touch display screen panels. It is likewise known as UV Glue. Most technicians favor using LOCA Glue or UV Glue over different glue or sealants because it improves comparison with the aid of normally. It also prevents loss of mild from the display and hence increases the existence of Mobile Phone Battery.
LOCA Glue is to be had in each acrylic-based totally and silicon-based.

Advantages of LOCA Glue over Other Adhesives?

Main blessings of LOCA over other adhesives are:


  •        Rework capability – If required, LOCA Glue can be eliminated for remodel / repairing.
  •        It gives exceptional adhesion to even non-even floor.
  •        It offers awesome optical houses.
  •        It is very durable.



How to Use LOCA Glue to Replace LCD Display Screen Glass of Mobile Phone / Smartphone

In order to replace a faulty, damaged or broken glass / touch panel (PDA) of LCD Screen of a cell smart-phone or clever phone, you may want following Mobile Phone Repairing Tools:

1.            Hot Air Gun or HOT Plate or LCD Separator Machine
2.            Goof Off / or Hot Blade (A Soldering Iron with a Wide Flat Tip)
3.            Putty Knife
4.            Infrared Thermometer
5.            UV Lamp
6.            Illuminated Magnifier / Magnifying Lamp
7.            LOCA Glue in a Syringe
8.            New Screen / Glass for Replacement
9.            Metal Spudger
10.          X-acto Knife

Separating the glass from the LCD

Separating the glass from the LCD has to be accomplished very carefully to keep away from any undesirable harm. Special care has to be undertaken if the glass is cracked. Never try to take off the glass without the proper equipment and system. It can damage the LCD which may be very pricey to update.

The glass and LCD are strongly bonded collectively with LOCA glue. The glue must be heated to loosen the bond. It can be performed using a Hot Air Gun / Heat Gun. Technicians with a few exercises can effortlessly do it. However, in maximum legal provider centers and expert provider facilities, they use an LCD separator machine.

How to Separate Glass from LCD Display

Use a Hot Air Gun or LCD Separator Machine, to give warmness to the LCD to Loosen the bond of the LOCA glue. In each instance, a temperature of two hundred-300 Degree C is OK.

1.            Gradually and evenly warmness the front aspect of the phone. Use the Infrared Thermometer to test the temperature before seeking to eliminate the glass. Make positive there's neither too much heat nor too little warmth. Too lots of warmth will burn the LCD display screen while too little heat may crack it.

2.            Start casting off the glass from the top of the display where speaker is placed. Use the steel spudger to cautiously separate the glass from the LCD display screen. Move the spudger alongside the pinnacle part and make enough space for the putty knife to slip in.

3.            Reheat the surface and the use of the putty knife, carefully pry the glass away. After disposing of the Glass, use the Goof Off or Hot Blade to do away with present melted LOCA glue and smooth the LCD display screen the usage of lint-unfastened wipes. Some service facilities and technicians also use automatic LOCA removing machine.

4.            Some phones have “HOME” and “BACK” sensors attached to one cease of the glass.  Carefully get rid of the connectors the usage of the X-Acto Knife.
PS: Most expert technicians repairing iPhone and High-End Samsung Smartphone uses LCD Separator gadget.

 How to Apply LOCA Glue

LOCA glue is available within the shape of the liquid. It isn't as thick as different adhesives. Apply just sufficient glue on to the display screen in a “X” pattern with a “-” within the middle of “X”. Make certain now not to use too much or too little glue and spot that there may be no air bubble.

The adhesive will progressively spread throughout the screen and to the rims on its own without you having to use any strain. If there's any bubble, apply gentle pressure at the LCD and guide the bubble to the threshold.

 How to Cure or Dry LOCA Glue?

LOCA Glue does no longer treatment or dry on its very own. You ought to dry it using UV mild. Always Use a branded UV mild that is about 30 to forty Watts. You also can use a UV nail dryer. But do not use Flashlight UV lights.

Curing or Drying time of the Glue is commonly 1 to two minutes. It additionally depends at the Wattage of the UV light source and the space between the UV mild source and the LCD Screen or Glass.

I desire now you understand how to use LOCA glue to restore a damaged LCD Screen / Glass of a cellular telephone / Smartphone.

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