I would not be happy! CWF never really gets dry to the touch. It will be hard to keep the dust out of it. Corn blasting is not a good way to strip interiors. I would recommend sanding it for a smooth finish for easy cleaning in the future. Go to this link for more info: http://www.flood.com/NR/rdonlyres/C9495B1B-D434-4E64-AE2E-C58A38C28D78/1302/CWFUV5.pdf
This is some of the info from this web site;
EFFECTS OF OVEREXPOSURE:
SKIN: May cause skin irritation. Prolonged or repeated contact can result in defatting and drying of the skin which may result in dermatitis.
EYE: May cause eye irritation. Symptoms include stinging, tearing, redness.
INHALATION: May be irritating to the nose and respiratory tract. Prolonged or repeated contact can cause nasal and respiratory irritation, dizziness, weakness, fatigue, nausea, headache, possible unconsciousness, and even asphyxiation.
SWALLOWING: Can cause gastrointestinal irritation, vomiting. Aspiration (breathing) of vomitus into lungs must be avoided; can enter lungs and cause severe damage. Ingesting large amounts of ethylene glycol causes liver and kidney damage