Prolonging the heat-setting time to provide enough relaxation time for high elastic strain, which can also reduce the inner stress and the dry heat-shrinkage.

We carefully select high quality macromolecule for special purpose. The products have excellent capability, such as good insulation, high speed of heat-shrinkage, light weight, easy operation.

The problem of cracks, which is caused in structures by deforming effect, such as hydration heat, shrinkage, temperature difference of atmosphere, is very important and complicated.