OSD-21A Special adhesive for ordinary paper bound books

Product Description

Model	OSD-21A
Product Name	Hot Melt Adhesive for Paperback Bookbinding
Application	Specially designed for adhesive binding of various printed materials, including textbooks, notebooks, receipt books, instruction manuals, bidding documents, magazines, and more
Appearance	Cream-colored, granular
Viscosity (Brookfield)	7500 ± 500 CPS at 165°C
Softening Point (Ring & Ball Method)	85 ± 2°C
Gardner Color	2-3
Open Time	10–15 seconds
Curing Time	10–15 seconds
Toxicity	Non-toxic
Operating Temperature	160°C - 175°C
Storage	Store in a cool, ventilated, and dry place. Shelf life: 12 months
Product Features	Excellent initial tack and strong holding power No stringing during application Resistant to oil penetration
Usage Guidelines	Writing paper 50-100g; offset paper 60-120g, coated paper 80-128g.