NASA Contact Cleaner is a fluid that works to clean oil, carbon, dust, grease, and dirt on sensitive electronic components, circuit boards, control switches and electronic panels, contact relays, generators, etc. Directions: Shake well before use. Precautions: The contents are highly flammable and under pressure. Keep away from heat and flame. Do not puncture or incinerate the... https://nasaautocare.com/products/contact-cleaner-spray-electronic-items-cleaner