Thunder Heavy Duty Liquid Presoak

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Sometimes special circumstances call for a presoak with an extra "kick." Thunder is just that presoak. Our heaviest-duty Liquid car wash presoak yet, use with caution. Thunder is a liquid compound formulated for washing passenger cars and trucks in Automatic and Self-Serve car/truck wash systems. It can also be used as a general-purpose cleaner. 100% Biodegradable.