1. The softening point is also raised to the range of 100-140 C by referring to the revised JT/T 280 index.
2. The content of glass beads has changed. It is suggested to fix a value greater than or equal to that of glass beads. The upper and lower limits are somewhat constrained (refer to JT/T 280 in the revision, which contains mixed glass beads).
The amount is more than 30%.
3. The compressive strength of reflective and protuberant marking coatings increases by 60 ~2Mpa (JT/T 280 data in revised version). Under high temperature conditions, the marking will not soften and the glass beads will not change.
It will not be pressed into the marking line by the tire to ensure the continuous reflection of the marking line. It can also improve the anti-pollution ability of part of the marking line.
1 and 4.2.6 are also more humanistic. Under the premise of controlling the cost of materials (organic content 15%, resin content of American standard hot melt coatings (>18%), the revision is in progress.
JT/T 280 contains 19% of the total organic matter, which controls the volatilization of the organic matter during the long time of constant temperature in the melting state of the paint.
2,4.2.9 glass beads are sprayed by double-spraying process. The spraying amount is more than 500 g/m2. This one is also very good. There are not enough glass beads on the surface. Where to start with continuous reflection? Open marking
One to three months after the traffic, the loss of reflex is the result.