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Additives
34 reviewed English products
QT04 · Additives4-in-1 Fatliquor & Softening OilReplenishes oils and restores a soft, full, silky feel without greasiness or preventing later finishing. Dissolve in hot water. The source gives 10–15-fold dilution for washing, 3-fold for routine softening, 1:1 for shrinkage, hardening or heat damage, and 5-fold for uneven colour concentration in suede.View guide →
QT05 · AdditivesSurface-Crack Repair AgentA fine penetrating resin for mildly cracked, heavily worn or difficult-to-colour smooth and washed leather on garments, shoes and sofas. Adding 30% during colour mixing improves adhesion and abrasion resistance as described in the source.View guide →
QT06 · AdditivesStrong Adhesion PromoterFor difficult surfaces, including waterproof-treated leather and leather treated with furniture polish. Improves adhesion before colouring. Add one-fifth to a sealer or spray undiluted; apply before colouring difficult PU leather.View guide →
QT07 · AdditivesLeather Base SealerA base treatment for highly absorbent leather, intended to prevent resin penetrating too deeply into the fibres while retaining a soft, full feel. The source lists several leather types using unclear or corrupted terminology; those terms need confirmation.View guide →
QT08 · AdditivesHigh-Efficiency Matting AgentReduces locally excessive shine after filling and colouring, helping repairs on automotive and sofa leather match the surrounding sheen. Add 1%–10% to colour paste or add directly to filler as required.View guide →
QT09 · AdditivesLeather Softening AcidAn acidic additive used with fatliquor to help soften hardened leather and reduce yellowing after cleaning. Mix 5%–10% into 4-in-1 Fatliquor & Softening Oil and brush onto the reverse of the hide.View guide →
QT10 · AdditivesFast DefoamerRapidly removes foam and provides lasting foam suppression with good levelling. Add 0.1%–1% to the mixture. The source lists edge paints, leather coatings, acrylics, water-based polyurethane, casein, polyvinyl alcohol and latex adhesives.View guide →
QT11 · AdditivesAnti-Mould TreatmentA mould-control additive used during cleaning, subsequent spraying and care. The source specifies 5%–10% during cleaning, then spraying inside and out after washing and adding to a feel modifier or resin during care.View guide →
QT12 · AdditivesWater & Stain RepellentSpray undiluted onto suitable suede, nubuck and textiles such as canvas shoes. Creates a breathable, water-shedding protective layer. Allow approximately 4 hours to dry naturally.View guide →
QT13 · AdditivesLeather Shaping AgentA ready-to-use water-based treatment that stiffens leather fibres for shaping. Spray or apply by hand to the reverse, using suitable shaping supports. Air-dry or dry at 50°C. Repeat 2–3 times if greater firmness is required.View guide →
QT14 · AdditivesLeather Fibre RelaxerA ready-to-use water-based treatment that loosens hardened leather fibres without relying on the heat and mechanical action normally associated with fatliquoring.View guide →
QT15 · AdditivesPattern Masking LiquidBefore colouring, use a fine brush to cover patterns that must retain their original colour.View guide →