Hil­sonic ul­tra­sonic clean­ers from £200

Classic Car Weekly (UK) - - This Week -

Clas­sic car own­ers know the im­por­tance of the thor­ough clean­ing of en­gine parts for bet­ter per­for­mance and of the as­so­ci­ated prob­lems when restor­ing and main­tain­ing car en­gines, es­pe­cially when re­place­ment parts aren’t al­ways easy to find.

Ul­tra­sonic clean­ing in­volves a process called ‘cav­i­ta­tion’, where mi­cron-sized bub­bles form and grow due to al­ter­nat­ing pos­i­tive and neg­a­tive pres­sure waves in a so­lu­tion. The bub­bles con­tinue to grow un­til they reach res­o­nant size. With the com­bi­na­tion of pres­sure, tem­per­a­ture and ve­loc­ity, the jet frees con­tam­i­nants from the sub­strate, leav­ing an ob­scenely clean fin­ish. hil­sonic.co.uk

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