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M2000 hot melt coating resin for signs on road surface
Properties:
M2000 hot melt coating resin is based on BS-424 specialty resin for road coating, with adjusted composition of light stabilizing agents. It is effective in the absorption of light esp. UV light, as well as the quenching of hydroperoxide, active oxygen and free radicals. Road coating with M2000 resin in it has outstanding resistancy to aging and yellowing, is resistant to dirt, pressure and abrasion, has medium leveling property and dries fast.
M2000 resin is a specially designed bonding agent for sign coating, suitable for asphaltic surface or cement surface.
Technical specs:
|
item
|
spec
|
|
appearance
|
light yellow transparent hemispherical beads
|
|
color number
|
≤4(FeCo)
|
|
softening point
|
100-110°C
|
|
acid number
|
≤25mgKOH/g
|
Reference formula:
|
ingredient
|
composition
|
|
M2000 resin
|
16
|
|
R902 titanium pigment
|
4
|
|
dioctyl ester
|
2
|
|
-
|
1
|
|
quartz sand
|
27
|
|
triple superphosphate powder
|
35
|
|
glass beads
|
15
|
Comparison between coating made from M2000 (reference formula) and that from petroleum resin
|
item
|
coating from M2000 resin
|
coating from C200H resin
|
| specific density |
1.9-2.2
|
1.9-2.2
|
| softening point |
106°C
|
102°C
|
| drying rate |
fast (less than 15min)
|
fast (less than 15min)
|
| heat stability: whiteness, 200°C plate formation |
80.4
|
78.9
|
| whiteness, 220°C plate formation |
80.2
|
78
|
| whiteness, 240°C plate formation |
79
|
75.6
|
| remark |
good heat stability; suitable for higher temperature jobs
|
poor heat stability; limited in high temperature jobs
|
| aging property: coating whiteness before aging |
80.4
|
78.9
|
| coating whiteness after 24H aging |
75.2
|
73.8
|
| coating whiteness after 48H aging |
72.3
|
71.3
|
| coating whiteness after 72H aging |
70.6
|
69.7
|
| coating whiteness after 240H aging |
no crinkling; no powdering
|
no crinkling; slight powdering
|
| ideal working temperature |
200±5°C
|
190±5°C
|
| coating condition on the road |
no cracks; better resistancy to dirt
|
slightly cracking; comparatively poor resistancy to dirt
|
| resistancy to abrasion |
good
|
good
|
| resistancy to pressure |
good
|
good
|
| leveling property |
free flow leveling area at 200°C for 200g coating: ca. 160cm2
|
free flow leveling area at 200°C for 200g coating: ca. 170cm2
|
Concluding remarks:
The coating made from M2000 resin is comparable to or better than coating from C200H, except for the leveling property. To have the best coating and the best result out of M2000 resin, we suggest 0.5%-1% more dioctyl ester in the mix, 10-20°C higher in working temperature than what is used for C200H coating.
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