Hydroxypropyl Guar(HPG) is derivative from natrual guar, and HPG is coming from the chemical reaction called Hydroxyalkylation. Through this chemical modification, the rheological characteristics, water retention and enzyme resistance of Guar Gum been improved.
Guar gum ether shows a pseudoplastic rheological behaviour: At low shear rate values,guar and cellulose are very close to each other, while, at high shear rate values, the viscosity of a solution of guar decreases more significantly. This lower viscosity gives the wet mortar a good workability and smooth surface.
Thus, guar improves the adhesion and the stability of the wet system, without negatively influencing neither its consistency nor its water retention and showing an excellent workability and a perfect finish.