DEMACRYL DL-4
Acrylic polymer Technical Data SheetProduct Review: DEMACRYL DL/4 is an APEO free acrylic co-polymer used for retanning and filling of chrome and chrome vegetable tanned upper leather Product Characteristics: Physical state Yellow viscous liquid pH ( solute. 1:10) 5.5 - 6.5 Active Substance 40% ± 2 Charge Anionic
Benefits: DEMACRYL DL-4 prevents grain looseness, leads to a firm grain without hardening the leather, has a selective filling effect and is resistant to light. Application: DEMACRYL DL-4 is diluted with water at 40 – 60°C before adding to the drum. At pH above 4.5 DEMACRLY DL-4 penetrates into the leather. At pH below 4.5 DEMACRYL DL-4 will start to precipitate and is being fixed. In order to fix DEMACRYL DL-4, the final pH must be adjusted to 3.7 – 3.9. DEMACRYL DL-4 is also precipitated by chrome and alum salts. Handling & Storage: To ensure safe storage of this product, containers should be well sealed to prevent the water evaporation and skin forming. The product must be stored between 5-25°C for a maximum of 12 months and freezing must be avoided.
Our recommendations are based on according to our experiences and observations. The customer should perform his own tests in order to determine the suitability of the products for their production routine. As Karakoç Kimya can not control the conditions of usage of the products in tannery, the consequences comes within the customers responsibility. EDITION 2015