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Mark V Window Sheen Glass Cleaner

Ease of use is a crucial factor when you buy a glass cleaner, and the new Mark V Window Sheen isn’t as simple to apply as the established Comma.

The spray cap squirts out a lot of formula, but before you can use the cleaner, you’ll have to pour most of it out of the bottle and dilute it to a ratio of four parts water, one part cleaner. Not a problem if you’ve got a spare bottle, but this is still time-consuming – and there’s nothing to help you measure out the right amount.

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If you use the spray without diluting it, the smell is a bit overpowering, and it’s not great value for money. But at 4:1, the formula did a good job of cleaning our screen.

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