Product introduction
High molecular weight linear saturated polyester with very good adhesion to metals. Baking coatings made of L411 with amine resins and blocked polyisocyanates have excellent flexibility and strong adhesion to metals.

use
Coil coating primer and bottom surface in one coating, composite adhesive; deep-drawing and sterilizing retort resistant printing iron coatings, metal decoration and inner protection coatings; gravure and rubber letterpress inks and heat sealing coatings.

form of supply
Granular solid resin

property indicator

Property , Value , Unit , Test Method
A. Product Specifications
Viscosity① 55-65 cm³/g DIN 53728
Hydroxyl Value Max 9 mg KOH/g DIN 53240
Acid value 3 max mg KOH/g DIN EN ISO 2114

b. Typical data
Molecular Weight 16000 g/mol Calculated
Glass transition temperature 45-50 ℃ ℃ DSC②
Softening Point 130 ℃ ℃ ISO 4625
Specific Gravity (20℃) 1.23 g/cm³ ISO 1183
①Dissolve 0.5g polyester in a mixed solution of 100cm³ phenol and dichlorobenzene (50/50.w/w) and measure
② Differential thermal analysis

storage stability
L411 can be stored for at least 12 months at room temperature below 25°C, protected from direct sunlight and moisture.
L411 produces turbidity (very small amounts of cyclic oligomers) in solution.

Package
Granules packed in paper bags, net weight 25kg