A full trade box of 15 cartridges of Anthracite Grey Silirub 2. It is a 100% silicone, and that matters more than it sounds - everything else in a cartridge is filler and extender, even a good LMN runs 90 to 95% silicone, and it is the filler that shrinks back as the joint cures and ages. A 100% silicone has nothing in it to go anywhere.
The other reason to step up is glass. Soudal state Silirub 2 is compatible with most insulating-glass edge seals and conventional PVB laminated films. Silirub LMN explicitly is not - their own sheet says so. If the bead touches the edge of a sealed unit or a laminated pane, this is the one.
Matches Anthracite Grey roofline in both textured and smooth finish, and RAL 7016 frames.
Being neutral cure it will not corrode metal or stink the place out the way an acetoxy silicone does, so it is as happy on anodised aluminium, stainless steel, lacquered wood and ceramic tile as it is on uPVC. One thing Soudal are clear about though: do not use it on natural stone such as marble or granite, because it can stain. Use a proper stone sealant there.
✔ 15 x 300ml cartridges, fits a standard skeleton gun
✔ Works out at £8.33 a cartridge
✔ 100% neutral cure silicone - no shrinkage
✔ Primerless adhesion on most surfaces
✔ Conforms to ISO 11600 F&G 25 LM
✔ Suitable for internal and external use
✔ Resistant to UV, rain and snow
Buying a box makes sense if you have a full run of windows or a shopfront on. Single cartridges are on the site as well if you only need a couple.
Not sure which colour you need? Give us a ring - we sell the roofline as well as the sealant, so we can tell you what goes with what.