For those who do not want metal braces for cosmetic reasons but wish strength and durability are ideal guardian of the fiberglass rods produced by pultrusion.Available in diameters from 6.8 -10 -12 mm.

The equivalence of diameters between GRP and PVC is half:

•      VTR 8 mm - 16 mm PVC (reinforced)

•      VTR 10 mm - 20 mm PVC (reinforced)

•      VTR 12 mm - 24 mm PVC (reinforced)

PRODUCTION PROCESS: THE PULTRUSION

The pultrusion, or "extrusion pertrazione", is a continuous process used to produce reinforced polymer profiled. The reinforcing fibers, such as possone be for example the glass fiber and carbon fiber, are removed from the creel and passed through a so-called impregnation bath where they are linked to the matrix from the resin. Subsequently, the traction pulls the fibers already impregante of the resin by passing them through a comb with the function of driving and a imboccandole a preforming station, which is a die which gives the unheated section of the desired size, and compacting the fibers.Now these are made to enter into a heated mold (curing die) having the shape of the section of the final product desired.The high temperature of the die promotes the polymerization of the resisna stessa.Questo temperature change is not immediate: inside the furnace are present 3 zones at different temperatures (the preheating zone, a zone of gelation, the area to eleevata temperature.). At the exit from the oven the section is transported to a cutting zone where it is cut by blades opportinamente that the dimensions of.At the end of the machine of pultrusion we find the traction system, placed far enough away than the phono of care, in order to allow optimum cooling to the profile, to avoid deformation during the cooling phase .