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Technical Guide

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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