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This copper powder consists of 100% copper
but because of the many raw materials in the color fragrances
The water-repellent effect develops within a few minutes (especially if the temperature is high and with little humidity)
The recommended plaster to water ratio is 100 parts of plaster for 32 parts of water
Siliconen Additie Kleurloos 50 – Harde Platinum Silicone voor Beton & Zware Gietmassa's Bürstenwalze This copper powder consists ofPremium Hard Silicone for Professional Molds and Heavy Duty Applications Silicone Addition Colorless 50 is a 2 component, platinum cure (addition curing) casting silicone with Shore A 50 hardness, specifically developed for sturdy, flexible molds for concrete, cement, and other heavy casting materials. This high quality silicone combines high mechanical strength (8 N mm tensile strength) with minimal shrinkage (<0. 1%) and good flow properties, ideal
