Best Papers
The current product range recommends 80-200 g/m² paper, with 105-157 g/m² as the preferred evaluation range. Coating, ink coverage, grain direction and spine preparation still affect the result.
GRADE 1052
1052 Hot Melt Adhesive for Book Spine and Side Glue
1052 is a bookbinding hot melt granule developed for coated and denser papers where spine penetration, page pull and flexibility must remain balanced through the binding process.
- Grade
- 1052
- Product Form
- Hot melt granules
- Best For
- Coated paper, catalogs and thicker books
- Application Temp
- 160-180°C
- Viscosity
- 8,000-10,000 cps @160°C
- Softening Point
- 85-95°C
- Color
- White / yellow translucent or milky white
Technical Parameters and Application Fit
Application temperature
160-180°C
Viscosity
8,000-10,000 cps @160°C
Softening point
85-95°C
Color
White / yellow translucent or milky white
Spine Penetration
Milling depth, paper dust, adhesive temperature and glue-film thickness determine whether the molten adhesive reaches the prepared fibers before cooling.
Page Pull
Judge page pull only after controlling paper, notch or milling condition, adhesive amount and cooling time. Record whether failure occurs in the paper, at the interface or inside the adhesive.
Flexibility
A book spine must tolerate opening without becoming too soft in storage. Evaluate repeated opening, low-temperature flex and cover movement on finished books.
Production Window
Use 160-180°C as the starting application range and align open time with line speed, glue application, cover placement and pressing.
Testing
Compare page pull, spine shape, flex, heat storage and aging on books made with the customer's paper and equipment.
Grade 1052 FAQ
Can 1052 be selected from paper weight alone?
No. Paper coating, spine preparation, line speed and glue-film condition must also be evaluated.
Is 1052 a replacement for side glue in every line?
1052 may be evaluated in bookbinding systems, while 1061 is the dedicated side-glue grade in the current range. Confirm the required position and process before testing.
Request Grade 1052 for Your Materials
Send the substrate, equipment and production conditions so the sample can be evaluated against your actual process.