LED yellowing

reason:

  1. The baking temperature is too high or the time is too long;

  2. The proportion of glue is wrong, and glue A is easy to yellow.

Solution:

  1. AB glue is cured and demolded within 30 minutes at 120-140 degrees, and it is easy to yellow when baked for a long time above 150 degrees.

  2. AB glue is cured and demolded at 120-130 degrees / 30-40 minutes, and it will turn yellow when it exceeds 150 degrees or bake for a long time.

  3. When making large lamp caps, lower the curing temperature.

▶ LED bubble problem

reason:

  1. Air bubbles in the bowl: The bracket is poorly glued.

  2. Bubble in the bracket: the curing temperature is too high, and the epoxy curing is too intense.

  3. Cracked glue, burst top: short curing time, incomplete or uneven curing of epoxy resin. AB glue exceeds the usable time.

  4. Bubbles on the surface of the lamp head: the epoxy glue has difficulty in defoaming or the user's vacuum degree is not enough, and the glue dispensing time is too long.

Solution:

  Depending on usage, improve your process or contact your epoxy supplier.

▶ LED bracket climbing glue

reason:

  1. The uneven surface of the bracket causes capillary phenomenon.

  2. AB glue contains volatile materials.

Solution:

  Please contact the supplier.