Transcript Polyurethane (PU)

Based on Color Appearance
Based on Film Performance
Coating System Performance
NC (Nitrocellulose)
Water based
Acrylic
Melamik (Acid Curing)
M
PU (Polyurethane)
•Low Build / Natural
•Open Pore / grain
•Low Solvent Resistance
•High Build
•Close Pore / flat
•High Solvent Resistance
Global Trend of Wood Finish
2K-PU
NC
ACID
Water
based
CURING
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)
COMPONENT A
Features
Alkyd polyol
Acrylic polyol
Polyester polyol
Medium
Low
High
Optical
appearance
High
Low
Medium
Chemical
resistance
Low
High
Medium
Medium
High
Medium to high
Low
High
High
Build of film
UV-light resistance
Price
COMPONENT B
Features
Build of film
Reactivity
UV-light resistance
Price
Aromatic isocyanate
Prepolimer
Trimer
Aliphatic
isocyanate
High
Low
Excellent
Medium
Fast
Slow
Yellowing
Medium
Non-yellowing
Medium
Medium
High
Advantages of Polyurethane (PU)
100% FREE
FORMALDEHYDE
SCRATCH
RESISTANT
EXCELLENT
CLARITY
CHEMICAL
RESISTANT
ELASTIC
Non Yellowing
Excellent Clarity
High Build
Italian PU
Low Odor
Easy to Use PU
Value PU
Acrylic PU
How to Choose
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
Build
Clarity
Value PU
E2U PU
Non-Yellowing
ITALIAN PU
Drying time
NY PU
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
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
Sanding Sealer
Polyester
Accelerator
Polyester
Catalyst
100
2
2
POLYESTER
As Basecoat / Sanding Sealer
High Build
Excellent Clarity
Excellent Leveling
Excellent Hardness
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
YES !
If the free-isocyanate contents in part-B
is less than 0.5%
TERIMA KASIH
facebook.com/propanpu
• Campuran komponen A, komponen B dan Thinner harus
sesuai dengan perbandingan yang dianjurkan.
• Campurkan ketiga komponen secukupnya untuk
menghindari material yang terbuang, karena umur
campuran PU hanya 3 – 4 jam.
Gunakan penyaring udara yang terhubung dengan
kompresor, untuk menghindari kontaminasi air pada spray
gun. Filter air harus dicek secara rutin.
• Untuk menghasilkan hasil finishing yang halus, lakukan
aplikasi pada tempat yang terlidung dari debu.