tman7 said:
Also what are the advantages of a solvent based protector? Do they last longer then water based?
Solvent is only the carrier. The protector is what is left behind after the solvent has evaporated. There is no inherent difference in the level of protection between a solvent based protector and a water carried protector.
Solvents MAY spread more evenly, but that is not always the case.
Depending on the particular solvent used as the carrier, it may flash off quickly. This leaves the top of the fibers with a strong protection (looks good for beading) but leaves little protector on the rest of the tufts.
Solvents will dry quicker than water carried products. Using less water may be important when treating cotton, linen or other fine fabrics.
Solvents have health and safety issues that water carried protectors do not. Flammability and breathing the vapors and pollution of the air.
If using solvents, apply them in an unoccupied area. Use a respirator. Use plenty of ventilation. These precautions can also be beneficial when spraying any protector.
Scott Warrington