There is a great deal of conflicting information on leather care being put out by leather experts themselves who use baffling pseudo scientific techno speak as another marketing ploy, which makes it difficult to find a definitive, unbiased answer. Here is one definitive truth –you are dealing with the leathers finish, not the hide itself.
The use of oils, replacement of fat liquor, oil-based conditioning, proteins or the adjustment of pH levels is totally unnecessary; the surface is a urethane that contains pigmentation (colour) it neither needs or benefits from any of the above
Unless a Premium Leather option was purchased Isocyanate based ethyl carbamate (urethane) finished leather upholstery is used by 95% as OEM in modern automobiles. It comprises a multi stratum acrylic and polyurethane resin binder system covering over the leather hide; the top strata are the surface pigmentation (colour) and an abrasion resistant urethane is used to improve flexibility, fastness and adhesion to the leather, together with a clear top coat provides a very durable surface finish
Modern automotive leather upholstery use a completely different tanning processes and finishing system, utilizing advanced polymers and chemicals (urethane doesn’t require conditioning or rejuvenation) and as a consequence they do not need to be treated with aftercare products containing oils or proteins.
Premium leatherhas a recognizable fragrance that is missing from polyurethane and plastic; simple cleaning, hydration and protection are the steps that will prolong the life of finished leather.
1. Clean - there are two cleaning-related factors that can cause your leather to wear prematurely. The first is dirt, and the second is oil, combined they become very abrasive, as dirt / grit and subsequent friction cause the finish to wear
2. Hydrate – when leather tanner’s talk about conditioning leather they are referring to its moisture content, re-hydration is used to restore or maintain fluid balance (transpiration and evaporation of moisture); not the replenishment or replacement of the fat liquoring, oils and / or waxes.
3. Protect - is essential as it will protect the surface finish, without hindering transpiration, while acting as a sacrificial layer; this way you are not actually cleaning the Leather's original surface, but cleaning from the surface of the protection. It also makes dirt easier to clean off
3a. Ultra violet (UV) protection - 303® Aerospace Protectant is water-based and will provide invaluable ultra violet (UV) radiation protection against photo degradation (fading); especially in a roadster or convertible vehicles, steering wheels and dashboards. It doesn’t contain silicones, so it won't attract and capture dust. You should apply to a clean surface (it doesn’t contain any cleaning agents) It will not prevent finished leather hydration (transpiration and evaporation of moisture) as it’s water-based, although it coats the leather with a micro fine coating; it will not seal it per se.
Note: this product does NOT air dry. Use a second dry cloth to finish the application process. Extra buffing with at dry cloth increases bonding, repellence and durability
1. “Leather Articles Hyperlinks” http://www.autopia.org/forum/autopia...yperlinks.html
2. “Proper Finished Leather Cleaning and Care” - http://www.autopia.org/forum/guide-d...ning-care.html