I have only become aware of the differences between silicone sealants so want to make sure I use the correct ones when I redo a lot of the sealant in my bathroom. My main issue is what to use to seal around the shower cubicle which is anodized aluminium. Should I use a neutral, non acidic type sealant or will it not matter? I just want to make sure it doesn't cause corrosion in the future.