TK-1220 Polyester Resin
1. Compositions
Saturated polyester, high boiling alcohol ether solvents and aromatic solvents.
2.Characteristics
Excellent bending resistance and outstanding flexibility for thick panels
Good boiling water resistance
Excellent adhesion
High film hardness; no sticking during winding
3.Applications
Mixed with melamine formaldehyde resins (MF) to form thermosetting coatings.
Suggested application for colored coil topcoats, thick aluminum panel topcoats, narrow panel matte topcoats, and matching primers for fluorocarbon thick panels.
4.Main technical Parameters
Items | Technical parameters | Items | Technical parameters |
Nonvolatile content (wt %) | 55±2 | Fineness (µm) | ≤10 |
Acid value（solid） (mg KOH/g) | 0~2 | OH value (solid) (mg KOH/g) | 15±5 |
Viscosity（cps，25℃） | 4000~6000 | Color（Fe-Co） | 1~3 |
5.Construction Condition
Weight ratio of TK-1220 to MF
TK-1220 : HMMM =(5~8):1（solid）
Curing condition: PMT 224℃~232℃×30~60s
6.Reference Formulation
Rolled alminum pearlescent varnish | ||
Constituent | Specification and Type | Parts by Weight |
TK-1220 Resin | 55% (NV) | 45.6 |
Dispersant | BYK-110 | 0.6 |
Titanium Dioxide | Rutile typ | 30.0 |
HMMM | Resimine 747 (Solutia) or Cymel 303 (Cytec) | 5.0 |
Adhesive promoter | ADP (Deuchem) | 1.0 |
Leveling agent | TK-F377 | 0.5 |
Acid catalyst | 5255 (Kim's Company ) | 0.3 |
Solvent mixture | PMA, DBE, High boiling aromatic solvents etc. | Appropriate |
Total | 100.00 | |
7.Storage Stability
Excluding sunlight and humidity TK-1220 is stable at storage temperatures below 25℃ for at least 12 months.
8.Packaging
200 kg (net) in one-way drums.
