Oil permeability - only seeping through one piece of paper

The oil permeability of the coil substrate has been greatly improved, and the coil substrate has no flowing or dripping, which is currently impossible for any material on the market to achieve。

Mass increase after immersion

There is a significant improvement in the quality increase of the coil after immersion, at around 0.3%. Suggest a ratio of SMA to asphalt of 4:6 or 5:5 (the softening point of asphalt after 4:6 mixing is around 70 ℃, and the softening point of asphalt after 5:5 mixing is around 80 ℃)

Improve the high and low temperature indicators of roll materials

Due to the presence of modifiers such as silicone in SMA, it has an improvement effect on the high and low temperature of the surface layer of the coil, while traditional pre impregnation methods can cause damage to the surface layer. (At around -20 ℃ at 5:5)

Improving the impermeability index of self-adhesive rolls。

Improvements in the appearance and feel of the roll material

Improved the porosity issue on the surface of the coil, enhanced its standing, and made the coil more upscale。

Improving the puncture resistance of pre laid roll materials

With current technologies (such as encrypted and thickened tire bases), it is difficult to achieve 500N for pre laid roll materials. After adding SMA pre impregnated materials, ordinary tire bases can reach nearly 700N。