Recommended information
Indoor matting agents
1. Description
KT258G is a kind of none-yellowing matting agent based on polyacrylate resin, applied for hybrid system, especially designed for 50/50 or 60/40 polyester formulations. Gloss level ranging from 2 to 40 can be obtained by adjustment of formulation with perfect storage stability and smooth surface. Higher fillers and pigments loading can be applied in the formulation compared with Vestagon hardener. The minimum baking temperature for consistent gloss and mechanical properties starts from 180℃
2. Technical data
Appearance: white or yellowing powder
Volatile: <1.5%
Melting point: NA
3. Application
The KT258G can be applied either for 50/50 or 60/40 hybrid system.
Excess epoxy is needed to react with matting agent to get chemical balance. Normally one pert of matting agent KT258G needs extra two point five parts of epoxy resin for complete reaction.
Normally the dosage of KT258G in the formulation starts from 1% to 5% based on the total powder.
Baking temperature: 10-15min@180-200℃
4. Suggested formulation
|
|
White system |
||||
|
Epoxy resin |
30.4 |
31.2 |
31.9 |
32.7 |
33.4 |
|
3B(pet) |
27.9 |
26.1 |
24.4 |
22.6 |
20.9 |
|
PV88 |
0.7 |
0.7 |
0.7 |
0.7 |
0.7 |
|
TiO2 |
20 |
20 |
20 |
20 |
20 |
|
W-44HB |
20 |
20 |
20 |
20 |
20 |
|
KT258G |
1 |
2 |
3 |
4 |
5 |
|
|
Black system |
||||
|
Epoxy resin |
30.4 |
31.2 |
31.9 |
32.7 |
33.4 |
|
3B(pet) |
27.9 |
26.1 |
24.4 |
22.6 |
20.9 |
|
PV88 |
0.7 |
0.7 |
0.7 |
0.7 |
0.7 |
|
TiO2 |
39.4 |
39.4 |
39.4 |
39.4 |
39.4 |
|
W-44HB |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
|
KT258G |
1 |
2 |
3 |
4 |
5 |
Epoxy resin: EEW 800-900, Polyester: 3B from shenjian chemical, TiO2: R902 from Dubang, BaSO4: W-44HB
5. Storage and package
Keep in the cool and dry place, PE-lined, with multi-ply paper bag, net weight: 25kg