The document discusses various wood finishing coating systems, including nitrocellulose (NC), acrylic, melamik, and polyurethane (PU). It provides details on the features and performance of PU coatings, which are increasingly becoming the global trend for wood finishes. PU coatings offer advantages like 100% formaldehyde free, scratch resistance, chemical resistance, and non-yellowing. The document recommends choosing a PU based on factors like build, clarity, drying time, and value.

2. Based on Color Appearance

3. Based on Film Performance

4. Coating System Performance
NC (Nitrocellulose)
Water based
Acrylic
M
Melamik (Acid Curing)
PU (Polyurethane)
•Low Build / Natural •High Build
•Open Pore / grain •Close Pore / flat
•Low Solvent Resistance •High Solvent Resistance

5. Global Trend of Wood Finish
2K-PU
NC
ACID
CURING
Water
based

6. Polyurethane (PU)
COMPONENT A
Alkyd Resin, Saturated polyester resin
and acrylic resin which content
Hydroxyl functional group (-OH)
COMPONENT B
Aromatic Isocyanate, and/or
Aliphatic isocyanate which content
functional group of (-NCO)

7. COMPONENT A
Features Alkyd polyol Acrylic polyol Polyester polyol
Build of film Medium Low High
Optical
High Low Medium
appearance
Chemical
Low High Medium
resistance
UV-light resistance Medium High Medium to high
Price Low High High

8. COMPONENT B
Aromatic isocyanate Aliphatic
Features
Prepolimer Trimer isocyanate
Build of film High Low Excellent
Reactivity Medium Fast Slow
UV-light resistance Yellowing Medium Non-yellowing
Price Medium Medium High

9. Advantages of Polyurethane (PU)
10 0 % FR EE SCRATCH
FO R M A LD E H Y D E R ES I S T A N T
EXC E L LE N T C H EM I C A L
C LA R I T Y R ES I S T A N T
ELA S T I C

10. Non Yellowing
Excellent Clarity
Acrylic PU
High Build
Low Odor Italian PU
Easy to Use PU
Value PU

11. How to Choose
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
Build Clarity Non-Yellowing Drying time
Value PU E2U PU ITALIAN PU NY PU

13. High Gloss Furniture creates the essence of contemporary styling and
adds a sense of light and space even with the darker gloss finishes, this
is due to its shiny reflective surface which produces this affect in night or
day settings

14. POLYESTER
UNSATURATED POLYESTER SANDING SEALER yang
terdiri dari 3 komponen, menghasilkan lapisan finishing
yang tebal dan keras sehingga dapat menutup pori
dengan baik tanpa harus menggunakan wood filler
A
B C
Polyester Polyester Polyester
Sanding Sealer Accelerator Catalyst
100 2 2

15. POLYESTER
As Basecoat / Sanding Sealer
☺High Build
☺Excellent Clarity
☺Excellent Leveling
☺Excellent Hardness

16. Special PU Top Coat for
Super High Gloss Finish
PUL – 7461-2K HG CLEAR GLOSS
☺High Gloss
☺Very fast dry for buffing
☺Excellent Clarity
☺Excellent Leveling

17. YES !
If the free-isocyanate contents in part-B
is less than 0.5%

19. TERIMA KASIH
propanpu@gmail.com
facebook.com/propanpu
propanpu.wordpress.com