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-926-55 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 |
|
WB-926-55 Resin |
55% (NV) |
45.6 |
|
Dispersant |
BYK-110 |
0.6 |
|
Titanium Dioxide |
Rutile typ |
30.0 |
|
HMMM |
Resi mine 747 (Sol utia) 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 WB-926-55 is stable at storage temperatures below 25℃ for at least 12 months.
8. Packaging
200 kg (net) in one-way drums.
The technical index in this specification is temporary regulated index. We wil give the customer promissory supplying specification until the last product document has been announced or negotiated and obtain consistency between suppliers and buyers. Our company is in good faith to either our technical opinions or recommended formulations, but we do not guarantee. The customer has responsibility to test it so as to verify the supported formulations or applications whether it is available. The formulations and uses obtained are not controled by our company, so is only responsible by the customer.
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