Cause catagory | Description |
Raw material color | Some base resins (such as rosin modification, SBC, EVA) are slightly yellow or amber |
Tackifying resin | Phenolic modified resin or rosin ester is darker in color, which will cause the finished product to be yellowish |
Antioxidant | Added stabilizers such as BHT and IRGANOX are light yellow to brown at high temperatures |
Fillers or additives | Some plasticizers, waxes, and ingorganic fillers may make the colloid milky or opaque |
Whether it has been bleaches | Raw materials that have been bleaches or refined can improve transparency |
Color | Characteristics | Common uses |
Transparent / white | Beautiful appearance, high purity | Electronic products, plastic packaging, fabric lamination, etc. |
Yellow / amber | Strong viscosity, wide adaptability, relatively low cost | Corrugated boxes, book binding, labels, etc. |
Milky white | Natural color of some APAO glues and polyolefin systems | Sanitary products, non-woven fabrics, baby diapers |
Dark yellow / brown | High content of tackifier or general raw material grade | Woodworking, furniture edge bonding, jigsaw puzzles, etc. |
** JCT can customize the hot melt glue formula for you according to your needs.