ARPRO 5126

ARPRO 5126 can be molded using Crack Fill (CF) and Pressure Fill (PF):
Crack fill: preferably applied to Pre-Treated (PT) ARPRO.
Pressure fill: applied to either Pre-Treated (PT) or Non-Pre-Treated (NPT) ARPRO.

Recommended pre-treatment cycle with pressure tank environment and incoming compressed air both at 23°C:
Crack fill: 6 hours up to 3.5 bar, hold for 2 hours at 3.5 bar, decrease and maintain at 1.5 bar throughout production.
Pressure fill: 5 hours up to 2 bar,  decrease and maintain at 0.5 bar throughout production.

Pre-treatment cycles can be adapted according to molding process, density and part geometry:

If internal cell pressure is too high, this may lead to fusion issues. In this case, decrease time, pressure or temperature to improve fusion.

Increase time, pressure or temperature to reduce molded density and improve aspect.
Operating the pressure tank above ambient temperature, up to a maximum of 50°C, significantly shortens pre-treatment time.

For molded densities below 50g/l and depending on the parts dimensions, post-treatment at a temperature of 80°C is recommended for 3 to 8 hours. This helps to remove water content, as well as ensuring dimensional stability and a geometric shape.

Typical values range from 2% to 2.6%. The higher the molded density, typically the lower the shrinkage.

A storage temperature above 15°C is strongly recommended.
Indoor storage strongly recommended.
If stored outdoors, it is strongly recommended to keep the material indoors for 24 hours before molding.