Silicone Casting Rubber Condensation 35 A component
These silicones have good fluidity, provide a lot of detail and have a high tensile strength and are soft. The silicone Condensation 35 is a 2-component cast silicone that hardens at room temperature. Excellent for casting molds for detailed and heavy objects such as plaster, cement and concrete molds
DON'T FORGET THE B component. You must order this separately. For standard use, condensation B 2% is recommended as a B component.
If you want to process polyester in these molds, we recommend using the special B component: Wacker T51 (5%)
If you want to use epoxy or polyurethane in these molds, we recommend using the special B component: Wacker T21 (5%)
If you want to work very quickly, we recommend using the special B component: Wacker T47 (1-2%). This B component may also be mixed with the original or above B components to achieve a speed of your choice with the properties of the above B components.
Processing
You can easily mix the silicone Condensation 35 by hand or machine. Mix the A and B components carefully and in the stated ratio.
Condensation B = 2%, so for 100 grams of A you use 2 grams of B2.
T21 = 5%, so for 100 grams of A you use 5 grams of T21
T51 = 5%, so for 100 grams of A you use 5 grams of T51
T47 = 1-2%, so for 100 grams of A you use 1 to 2 grams of T47
You can use 0.5% less or more hardener. If you use less hardener, curing takes longer and air bubbles have more time to escape. Be careful not to use too little hardener, as the silicone may no longer harden (properly). With more hardener, curing will proceed faster, meaning the mold will be ready sooner. The disadvantage is that the mold will also age sooner and shrink more.
Process the mixture within the pot life (processing time) and never make more than you can process within the pot life. Wait until the mold has completely hardened before removing the mold.
Please note: Pot life (processing time) and demoulding time are highly dependent on the mixing ratio and humidity! When adding more silicone B (harder) or at higher humidity, the pot life and demoulding time become shorter!
Iron, spread or spatula
If you want to spread/spread/iron the silicone on something, you can add Thixo C (0.6%-2%) (usually 1%). Thixo C is a thickener and makes it possible to spread the silicone. You should take into account that in this case the mold must be provided with a support cap. This support cap can consist of plaster cast, an epoxy support cap, or acrylic resin with thickener and glass fabric /
Shelf life
Provided the silicone is stored in closed packaging, cool and frost-free, the shelf life is at least 1 year.
Safety requirements
Use splash goggles, suitable liquid-tight gloves, an apron and work in a well-ventilated area. See Safety Data Sheet for more information
Documentation
EN - Product Information Silicone Condensation 35.pdf
Instructions for use: one-piece ironing spatula template, decorative strip
Manual for copying an ornament or decorative concrete
Manual one-piece casting mold medal
