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Help! Sunroof left open in rain

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Old 08-15-2015, 11:56 PM
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stpatsday
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Default Help! Sunroof left open in rain

Somebody left our 2004 Cayenne S in the driveway with the sunroof open overnight when it rained. Now one of the bolsters and sections of the seats have dried out-- and they dried out like a fried egg-- the leather is now really stiff and hard.
What should I use to restore the leather and soften?
Old 08-17-2015, 09:33 AM
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Rain Ingress Damaged Leather Surfaces

Rain ingress by inadvertently leaving a moon roof, convertible top or vehicles windows open during a rain storm will very likely soak the leather seating and perhaps the carpets. The damage would depend on how long it's exposed to water, restoration is important because it may become a breeding ground for mold and mildew. Left for a couple of weeks your whole interior would probably have to be replaced.

There are no leather finishes that are water proof. Leather hides used for automotive upholstery consist of approximately 45 square feet, that are stitched together to form a covering. The thousands of stitch holes allow any standing water to be absorbed and migrate laterally under the urethane finish. The perforated leathers used on many BMW, Mercedes-Benz, Porsches and other cars also allow standing water to permeate the urethane.

Leather that has been soaked in water may become brittle and may be ruined due to the formation of water mark stains and blemishes. Water damage restoration for leather is very manageable suing the correct products and methodologies. When leather becomes soaked or wet, the best way to dry it is to use clean, dry towels to wipe away the water. Never dry leather using a heater as this will cause the leather to shrink rapidly and these fibers will eventually break apart, causing the damaged area to deteriorate and split apart.

Finished leather (urethane pigmentation) is water resistant, which means if you spill or allow liquid onto the surface and clean it right away it should not cause problems. Damage to the electronics that are under the seats (seatbelt sensor, seat positioning motor, air bag sensors, and etc) may be a cause for concern. Obviously the amount of damage could be lessened dependent upon how quickly action was taken. If you saw it immediately, and got it home quickly and dried it out using towels to soak up the rain water, most things would be okay.

Although water (hydration) is good for leather and is what keeps it in good condition generally when its fibres become over soaked they swell and become deformed. When they dry they may not shrink back and revert to their original form and so become more brittle and distorted. This distortion may be impossible to remedy as it is the leather fibres that are damaged.
Renovation
Avoid flexing or bending the leather while you are restoring it because leather is weakened when the fibres are dry and it may crack.

Wet a towel with warm water, wringing out excess. Proceed to wipe the leather to remove any dirt and moisten the surface. If you are working on a large item, do one section at a time so you can apply Leather Master™ Soft Touch while the surface is still moist. This is not a conditioner per se but is used to improve and maintain the tactile feel and lustre by rehydration and to ensure the leather remains matte, soft and supple.

Apply a small amount to a clean, damp 100% cotton micro fibre towel, use a circular motion and slight pressure to ensure the product permeates the dried-out pores, but do not push hard enough to damage the leather. Allow 20-30 minutes dwell time and then wipe surface with a dry 100% cotton micro fibre towel.
Protection
With leather, it is much easier to practice prevention than it is to try to resolve major challenges after the fact. Leather Protection will also work to remove small surface scratches on finished leathers. In general, Leather Protection Cream is used as a final step in combination with most of the Leather Master products.

This is essential as it will protect the surface finish (Leather Master™ - Protection Cream, a Scotchgard™ type, water-based product) 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
The polymers penetrate the surface of finished leather and cross-link to form a durable protective film that is breathable, allowing transpiration and keeps the leather supple. Being aqueous (water- based) it restores moisture to finished leather and provides a protective sacrificial barrier against all kinds of soiling, water, oil, alcohol-based stains and perspiration marks, so you are cleaning the protective layer



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Old 08-25-2015, 12:02 AM
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^^^ thank you!



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