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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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