One reason why leather tears easily are the drying up of the original fatliquor (fat and oil) content. The tensile strength of the leather very much depends on the percentage of fat and oil content. And modern tannery standards are about 14% for chrome-tanned leathers, just like yours in this picture.
Since fat and oil are VOC (volatile organic compound), aging especially by heat causes evaporation and the leather becomes stiffer, loses its suppleness, and when pressure is asserted it tears is the given reason in this case.
It is highly recommended that the leather is given a restorative cleaning and that the leather structure relaxes the stiffness and the stick together fibers open up with the help of Hydrator-3.3. Only until the entire leather is limp and plumbed up that Faliquor-5.0 is replenished to restore its tensile strength and suppleness that repairs begin.
Repair is done with a bonding process where a sub-patch is placed beneath and a leather Bond-3D that becomes part of the leather is bonded.
The seam is then further sealed with Bond-3D with matching colors to camouflage the repairs, and a final topcoat coat to match the sheen of the original leather finishing.
Let me know of your further interest in the product system I mentioned.
10171
Roger Koh
Leather, Skin, Hair, Eye & Acne Care System Formulator
Consultant / Practitioner / Instructor / Coach
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
email:
[email protected]