Adhesive Drum Change: best practices and useful tips.

High volume application of sprayable industrial adhesives and sealants require professional grade drum pumps, also known as bulk unloaders. While the specific type of pump may vary, most Seal Bond products require a pump that handles ambient temperate and high-viscosity liquids. For examples of typical bulk unloaders check out the offerings from Nordson, Graco or ARO.

Proper and consistent drum set up will help your team achieve the following:

  • Faster changeover and setup times
  • Less cleanup
  • Less downtime caused by leaking or spills
  • Minimized waste

We’ve outlined some best practices and tips so that you can avoid creating a mess like this one.

Step 1: Open the bag liner

Opening the adhesive drum liner before loading into the pump will provide easier access to prepare the bag and top sheet for unloading.

Step 1: Open Adhesive Bag

Step 2: Cut Bag and Liner

Trim the bag liner to the top of the drum and cut the top sheet using a template. Proper trimming will allow the pump to operate as designed and minimize the leaks and air bubbles.

Note: Template is shown in image and top sheet has not been cut yet.

Trim bag and cut liner

Step 3: Fold Liner over edge of top sheet

Folding the liner over the top sheet edges effectively seals the bag/liner to prevent adhesive or sealant leaks.

Step 4: Insert Drum Ring

The drum ring distributes pressure evenly around the drum liner and locks the protective top sheet seal.

Tip: Apply a small amount of grease to the ring to make cleaning easier.

Step 5: Operate Pump

Follow the drum pump manufacturers instruction for proper adhesive or sealant application.


By following the steps outlined above, the unloaded drum and follower plates should remain clean and have no visible mess.

The drum liner and top sheet should be compressed neatly at the bottom of the drum for easy disposal.

The top sheet may get stuck in the follower plate but it can be easily removed and should not require excessive cleaning of the follower plate.