Overview Reviews Product Description POLARIONâ„¢ Medium Reducer is a blend of special evaporating solvents which are intended to correct most leveling and flow problems. Product Videos Custom Field Product Brand Name Polarion PS5 Size 5 Gallons Product Type Solvents Product Reviews Write a Review Write a Review × M.L. Campbell Polarion PS3 Reducer 5 Gallons ML Campbell Wood Finishing Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *