How many kilograms does a bag of hot melt adhesive weigh? Packaging specifications, order quantity, and common procurement issues

Some practical questions that customers who are purchasing hot melt adhesive for books and magazines for the first time often ask:“How many kilograms do you pack? How to order a whole ton? Can we try a small batch first?These issues are not complicated, but they are related to warehousing, logistics, and first order risks. Below, we will explain the common packaging specifications and ordering logic of hot melt adhesive products at once (the specific net weight of each bag is subject to Sunlife’s accompanying packaging label and order).

1、 First of all, let’s answer directly: Hot melt adhesive particles are usually counted as “bags”, and the industry generally calculates them as 25kg/bag

Hot melt adhesive for books and periodicals (mainly EVA base material, cylindrical/round/block shaped) is used in the industryTypically, 25kg/bag (woven bag or paper plastic composite bag) is the most commonThere are also specifications such as 20kg; The specific net weight of Sunlife’s hot melt adhesive granules per bag is subject to the packaging label and order agreement, and no fixed value is guaranteed here. The reason for using “bags” instead of “bottles/boxes” is that hot melt adhesive is an industrial consumable with a large amount of usage. Bagging is convenient for forklift handling, stacking, and feeding.

2、 Why is it in the range of around 25kg

1. Material matchingThe glue pot in the book and magazine factory usually adds materials in bags, with each bag weighing around 25kg, making it convenient for workers to place the entire bag, measure and trace batches.
2. Warehouse turnoverBags are stacked on pallets, and warehouses (such as Sunlife finished product warehouses) are managed according to pallets. A 25kg single bag is neither too heavy nor too small to cause an explosion in the number of bags.
3. Logistics Billing Less than truckload/whole vehicle is calculated based on weight and volume, and a unified bag specification is beneficial for palletizing and reducing transportation losses (transportation and arrival clumping are discussed in a separate article, which will not be elaborated in this article).

3、 How to determine the order quantity: full ton, half ton, small batch trial

Whole ton/half tonStable production of book and magazine factories, graphic and text chains, locking in whole ton orders on a monthly basis, ensuring more stable prices and delivery times, and reducing the risk of material shortages due to frequent restocking.

Small batch trialDuring the stages of changing glue, changing machine models, and sampling, it is recommended to conduct small-scale trials first (Sunlife has a “10 item acceptance checklist for small-scale trials” process, covering opening time, viscosity, machine performance, etc.), confirm the match, and then release large orders to reduce the cost of trial and error for the first order.

It is not recommended to stack bulk orders directly for the first orderEspecially for cross brand rubber replacement, first use a small batch to run through the four elements of “paper temperature machine rubber” before increasing the quantity, to avoid whole ton compression.

4、 4 things to ask during procurement

1. Net weight per bag and total number of itemsBefore placing an order, confirm the bag size and total number of bags to facilitate the warehouse’s receipt of goods.
2. Production date/batchIt is recommended to use hot melt adhesive according to the “first in, first out” principle, and clarify the batch for easy rotation (there is a separate document for storage and maintenance).
3. Tax included/excluded and invoiceThe quotation caliber should be clearly asked whether it includes tax and what kind of invoice to issue to avoid discrepancies during settlement (the quotation caliber including tax can be consulted separately).
4. Delivery time and arrival statusDue to tight production schedules during peak seasons, confirm delivery dates in advance; After arrival, check whether the packaging is intact and whether the particles are clumped.

5、 Relationship with Sunlife’s real business

Sunlife’s hot melt adhesive models for books and periodicals cover copperplate paper glue (396/397/398), adhesive paper glue (292/296/295/298), flat glue (391), test paper glue (39D), graphic store glue (393/395), pearl cotton glue (39B/399), etc. It is manufactured by Foshan Jucai Base and has been specializing in book binding for many years. When customers inquire about prices, Sunlife usually provides packaging and ordering suggestions based on “model+monthly consumption+whether sampling is required”, and supports small batch trial verification before scaling up to stable supply at the whole ton level; Please attach the ‘Instructions/Process Card’ with the goods and place the ‘Select the correct model and use the correct parameters’ before shipment.

Explanation: The 25kg mentioned in this article is a common bag size reference in the industry. Sunlife’s specific net weight, minimum order quantity, and tax inclusive quotation for each bag are subject to the packaging label and actual order/quotation; The packaging of different models may vary slightly.