Wacker T40 tin catalyst for condensation silicone - Copy
This T 40 paste catalyst is primarily intended for the kneadable Wacker Elastosil M 1470.
Processing
The condensation hardening silicone can be easily mixed by hand. Mix the A and B components carefully and in the specified ratio.
T40 mixture = 2%, so for 100 grams of A component you use 2 grams of Wacker T40 paste (B component).
You can use 0.5% less or more hardener. If you use less hardener, the curing takes longer and air bubbles have more time to escape. Be careful not to use too little hardener, because then the silicone may not harden (properly). With more hardener, the curing will go faster, so the mold is ready sooner. The disadvantage is that the mold will also age sooner and will shrink more.
Process the mixture within the pot life (processing time) and never mix more than you can process within the pot life. Wait with de-moulding until the whole has completely hardened.
Please note: Potlife (processing time) and de-moulding time are strongly dependent on the mixing ratio and humidity! When adding more silicone B (hardener) or at higher humidity the potlife and de-moulding time will be shorter!
Shelf life
Provided the silicone is stored in a closed container, cool and frost-free, the shelf life is at least 1 year.
Safety requirements
Wear splash goggles, suitable liquid-tight gloves, an apron and work in a well-ventilated area. See Safety Data Sheet for more information
Further important safety information
Signal word Warning
H-Code hazard statements
H226 Flammable liquid and vapour.
H319 Causes serious eye irritation.
H332 Harmful if inhaled.
H335 May cause respiratory irritation.
H373 May cause damage to organs through prolonged or repeated exposure.
P-Code precautions
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P243 Take precautionary measures to avoid static discharges.
P260 Do not breathe vapour/aerosol.
P280 Wear safety gloves/protective clothing/eye protection.
P304 + P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P312 Call a POISON CENTER/doctor if you feel unwell.
Documentation
SDS Wacker Catalyst Paste T 40 NL.pdf
WACKER Catalyst T series for moldmaking.pdf
