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SWX250 is a ready for use product, it contains a mixture of demineralised water & high grade methylated spirit solvents. It is designed to remove waterborne contaminants from previously painted substrates before any sanding, priming or topcoating is carried out. SWX250 should always be used as the first step when preparing previously painted substrates for sanding or painting, when this step is completed, the next step should include a full solventborne clean with products such as D837 Spirit Wipe. Product Information PRODUCT DESCRIPTION SWX250 PRODUCT Water - Methylated Spirits Cleaner Water - Methylated Spirits Cleaner OneChoice SWX250 SWX250 can also be used as a pre cleaner for aluminium substrates. Please read the process under preparation of aluminium substrates.