Monday, March 17, 2008

 

You Ask, We Answer

Water-based vs Dry Solvent-based Soil and Stain Repellents

Q: I have read articles and have gone to training sessions where there are talking about using dry solvent-based soil and stain repellents more often. What are the benefits/disadvantages of using such products? What situations dictate when I should use them as opposed to the more traditional water-based ones?
A: Both water- and dry solvent-based soil and stain repellents that are now sold in the marketplace are largely comprised of what is called "fluorochemical" technology. Fluorochemical products are very effective against dry soil, provide good protection against water type spills and decent protection against oil type soil and stains. They were never intended to be "bulletproof." The purpose of these products is to make soil and stains easier to remove compared to non-treated surfaces. They are superior in performance to older technology products which included those that were silicone-based and soil attracting and colloidal silica-based that were effective against dry soil only and, unfortunately, were easily removed by any spotting or cleaning process necessitating reapplication of the product.

The two biggest players in the fluorochemical marketplace: 3M's Scotchgard and DuPont's Teflon. Formulators may make soil and stain repellents and then rename them but the main component in them is usually one of these two. There are also "generic" fluorochemical products that can perform just as well. Duraclean has two fluorochemical soil and stain repellents: Durashield Plus which has Teflon and Durashield SB which has a high quality generic flurochemical component as part of its formulation. Let's examine both type of products.

Water-based Soil & Stain Repellents

#1135 Durashield Plus


Benefits:

Disadvantages:

Dry Solvent-based Soil & Stain Repellents

#1124 Durashield SB

Benefits:

Disadvantages:

Conclusions

To adequately cover all situations you should have both water-based and dry solvent-based products on hand. For large scale carpet application a water-based soil and stain repellent is definitely the way to go. For upholstery dry solvent-based soil and stain repellents provide the best protection and since they do not contain water, they don't promote the possibility of yellowing or browning of natural fiber fabric such as Haitian cotton. Since a lot of vehicles have pile type upholstery dry solvent-based soil and stain repellents that have extra liquid repellency and will n0t change the fabric's "hand" is a good choice.

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