Hsn code

Hot Melt Glue Sticks  GST @ 18% 

Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg  [HSN 3506].

Hot Melt Glue Gun:    you can check what HSN fits among options listed below.

84242000 - Spray guns and similar appliances    GST 28%

84799090  - Other    GST 18%