What are your experiences on this subject ?
Over the years i have tried many brands of stain protectors on all different surfaces, i am currently using Solutions "Protect nano" this has a dilution of 1:1, even though the instructions state that a particular very fine T jet be used with it... i seem to get better coverage using an 8002 on carpet and a 8001 on fabric.
High % wool carpets seem to perform better to water repellency than synthetic carpet treated wit the same product.
Also what products have you used which offer the best long term performance?