Penair^® HD-4 is a biodegradable cleaner specifically designed for use on all types of transportation equipment. Penair HD-4 is a mild liquid alkaline cleaner containing corrosion inhibitors and heavy duty surfactants that make it highly effective on the toughest soils, including exhaust carbon, hydraulic oils, boot prints, and solid film lube. Penair HD-4 replaces cleaners that contain toxic or environmentally harmful ingredients thereby allowing maintenance personnel to comply with stringent EPA and OSHA standards. Penair HD-4 has no flash or fire point and eliminates any storage or handling problems. Additionally, Penair HD-4 contains low levels of VOC’s, lessening problems with regards to air quality in non-attainment areas. 

General Use, Transportation 

5 gal. pail, 55 gal. drum