Hot Melt News

Erecting and sealing cases, cartons and boxes with hot melt adhesive is standard practice in the packaging industry. This is usually accomplished by spreading hot melt over case flaps in a series of parallel beads. Using smaller parallel beads on close centers bonds much faster than using a large bead or two. These smaller beads also offer a much stronger lamination bond, rather than the less effective point of contact bond.

T Nozzle on High Flow Manual Bead Hotmelt Handgun

“T” nozzles, or spreader nozzles, have been used as a low cost method of channeling hot melt into multiple patterns from one applicator. Hot melt adhesive flows under pressure into this “T” or spreader nozzle and is channeled into a series openings on close centers. The “T” nozzle or spreader nozzle is used with hot melt stick guns, hot melt bulk guns as well as automatic hot melt guns.

T Nozzle on ChampStick400 available from Glue Machinery Corporation

The “T” nozzle is not suitable for precise application requirements, as there can be a tendency for temperature variations within the nozzle. The “T” nozzle is much larger than a standard nozzle, so the adhesive temperature varies as it moves through the nozzle and further from the heat source. This can create poor patterning and hot melt stringing. The use of low viscosity
hot melt will result in better flow from the “T” nozzle.

Frequent and consistent use of the gun and nozzle, will also improve patterning, as the hot melt flow through the nozzle actually heats the nozzle making for more consistent temperatures from gun to substrate.

Contact Pierce Covert at 410.761.2727 to discuss this simple alternative to improving your case sealing operation. Also see: Ergo Erector Basic Case Sealer

The assembly of speaker cabinets and sub woofers has greatly improved using the Champ 3 hot melt gun with GIA1051 hot melt adhesive available only from Glue Machinery Corporation.

Click on image for larger version

Champ 3 Bulk Hot Melt Adhesive Glue Gun

GIA 1051 Hotmelt

These self contained adhesive hotmelt guns melt and apply hot melt adhesive with accuracy and speed to countless substrates and surfaces. In this featured application, hot melt adhesive is applied to the wooden speaker cabinet and sub woofer components.

The hot melt applied to the speaker cabinet and sub woofer by the Champ 3 is both a bonding agent and an acoustical sealant.

Please review the included unsolicitied testimonial regarding our gun and glue:

Non woven materials can be easily bonded together with hot melt adhesive. Glue Machinery recently demonstrated this successful process to a customer wanting a quick, strong, and effective bond of these kinds of materials.

The Champ 3 with Slot Die is used to apply a thin flat pattern of hot melt adhesive for bonding nonwoven materials to other nonwoven material.

Champ 3 Non Woven Demo on Youtube

For this application, manually tilt the Champ 3 so that the Slot Die nozzle is at a 30 degree angle relative to the substrate, depress the piston pump trigger, and finally move the gun across the substrate to apply a thin pattern.

It is recommended that you use a hot melt with a long open time and medium viscosity to insure that you have ample assembly time. This also ensures that the adhesive does not migrate too deeply or through the porous non-woven material.

Please note that other application methods can be used to bond non woven materials. (Click here for video of another example) Contact Pierce Covert at Glue Machinery Corporation to discuss your particular needs and wide range of options we have to offer.