RENSA ETCHING is an acidic, emulsifying washing liquid for etching concrete floors.
RENSA ETCHING etching liquid is used for removing of dirt and laitance from unpainted concrete surfaces before painting. Etching liquid reacts with the alkali concrete laitance, which neutralizes the containing methanesulfonic acid. The reaction forms water and salts, that can be rinsed off with water. RENSA ETCHING contains also an emulsifier which improves its cleaning ability. RENSA ETCHING and the following water rinse remove from the concrete floor laitance and dirt as well as surface grease and chalk-salts that would hinder the painting. The product will not remove grease and oil that has absorbed into the pores, which are to be removed e.g. by sanding or grinding. The product is not suited for washing previously painted surfaces. RENSA ETCHING meets the requirements by OECD and by the Detergent regulation of European Parliament and the Council on detergents for biodegradability (OECD 301B, EC 648 / 2004).
|Dilution||Dilute with water in ratio 1:2 (1 litre of solution to 2 litres of water). Use a plastic container for dilution. Metal containers will corrode by the effects of the acid. RENSA ETCHING must always be added to water when diluting. This will prevent the mixture from heating up and splashing.|
|Packages||1 l, 5 l and 10 l.|
|Safety markings||See safety data sheet.|
|Approvals & certificates||OECD 301B, EC 648 / 2004|