Brush 8333 on the OCA optical glue for 3-5 seconds and the colloid is fully wetting, The layer begins to soften,
gently push down the glue with hand (similar to snowball principle), or with a blade scraping also is ok.
After the most of the glue be pushed down, there is residual glue on the glass, can use the clean cloth
Dip OCA removal liquid to do the second time cleaning, until there is no glue on the glass. (can choose white electronic oil or 8333 special use contact cleaner)