Parasilico AM85-1 is a low mod neutral cure silicone used as a perimeter sealant. The formulation of this product changed in 2018 and the revised version is not suitable to be used for IGUs the silicone is very similar in terms of appearance and tooling to the previous versions. If you require a silicone suitable for IGUs then use the translucent PROGLASS. If you need other colours for use with IGUs please contact us. Our AM85 range now consists of 33 colours, 27 of which are RAL matched and all AM85-1. Download the colour chart here. To check if a particular RAL is available click on the magnifying glass and just type the 4 digit RAL number into the search bar. Certain colours have a filled formulation giving a more matt finish, whereas a few such as anthracite and aluminium, are softer with a glossier finish and have a T after the AM85-1 T Some colours are available in other ranges if you type "black silicone" in the search bar you will see the black silicone available in the drop down list. Trickle vents and touchup pens come in colours too.