Question: Is blue magic safe on aluminium.
Answer: Blue Magic can only be used as a spray and wipe on aluminium, not for soaking in. So if you are cleaning a cooker hood for instance the contact time would be about 1 minute at the lowest dilution then wash in clean water.

Question: What are the dilution rates
Answer: The dilution rates are as follows:
MILD DUTY: 10ml Blue Magic per 500ml spray bottle for everyday cleaning.
MEDIUM DUTY: 20ml Blue Magic per 500ml spray bottle for stubborn stains and dirt.
HEAVY DUTY: 30-40ml Blue Magic per 500ml spray bottle for extreme dirt build up.