Product Overview
Leather Prep Cleaner 4.4 by Leather Doctor is a pH 4.4 cleaner that works on heavy soiling for pH-sensitive leather, Nubuck, and suede without side effects.
Prep 4.4 works on accumulated soiling, chewing gum, silicone shine, sticky residue, and greasy soiling.
Dye component of compound stains will require a follow-up with Dye 7.9 for such stains as ballpoint Ink, blue jean dye, crayon, leather belt, plastic Ink print, newsprint, stamp pad ink, etc.
Instruction:
1: Apply and work with a horsehair brush on heavily soiled areas
2: Before it dries, suspended soiling is towel extracted until it shows clean.
3: Cleaner 3.8 is applied over the cleaned area extended without a dry edge and extracted with a towel.
4: Rinse 3.0 rinses over the cleaned area without leaving a dry edge and towel extract to a healthy squeak.
5: Proceed with Hydrator 3.3.
6: Continue with Fatliquor 5.0.
7: Ends with Protector B.
People Also Ask:
1: What is Prep 4.4?
1.1: Prep 4.4 is the leather-safe milder version of Prep 7.7 for all leather types including the common Vachetta, Nubuck, suede, and Wet-White.
2: How does Prep 4.4 Work?
2.1: Prep 4.4 works by allowing sufficient dwell time to penetrate, lubricate, and suspend before towel extraction.
3: What is a Prep 4.4 Reverse-Transfer Technique?
3.1: Prep 4.4 reverse-transfer technique allows suspended stain during dwell time to wick and be absorbed through a stretchable absorbent towel and peeled off, rather than being reabsorbed by the leather.
4: How does Prep 4.4 work with Dye 7.9?
4.1: Prep 4.4 works as a pre-cleaner to remove the mixture of solvents and fatty acids paste component of ballpoint ink, leaving the remaining dyestuff to be further effectively removed with Dye 7.9.
5: How to Remove Prep 4.4 Sticky Residue?
5.1: Prep 4.4 sticky residue is removed with Cleaner 3.8 and pH balancing rinse with Rinse 3.0 as a holistic system.
6: What are the Related Products?
6.1: Degreaser 2.2 for degreasing body oil, grease, and sweat.
6.2: Acidifier 2.0 for neutralizing alkaline toxicity and overexposure tackiness.
Edited November 4, 2024, by Roger Koh.