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 adhesive bag
Opening the adhesive bag before loading into the pump will provide easier access to prepare the bag and liner for unloading.
Step 2: Cut Bag and Liner
Trim the bag to the top of the drum and cut the bag liner 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 liner has not been cut yet.
Step 3: Fold Bag over edge of liner
Folding the bag over the liner 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 adhesive bag and locks the bag/liner 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 adhesive bag and liner should be compressed neatly at the bottom of the drum for easy disposal.
The liner may get stuck in the follower plate but it can be easily removed and should not require excessive cleaning of the follower plate.