CAIG LABORATORIES DeoxIT D100L Brush Contact Cleaner 7.4 mL — Brush Applicator, Anti‑Oxidation Protectant

DeoxIT D100L-2DB is a precision brush-applied contact cleaner and protector that removes oxidation, improves conductivity, and leaves a lubricating protective film on electrical connections.

Designed for electronics, audio gear, automotive connectors, and household connectors, this 7.4 mL brush-top bottle from CAIG LABORATORIES gives targeted cleaning and protection where space is limited. The liquid formulation penetrates corrosion and microscopic contamination to restore signal paths without leaving conductive residue. Its brush applicator makes it easy to treat pins, switches, jacks, and small assemblies without overspray or mess.

How does DeoxIT restore electrical connections?

The formula chemically reduces oxidation and loosens corrosion that interrupts conductivity. After treatment, conductive surfaces regain low-resistance contact and more consistent signal transfer. It does this without abrasive scrubbing, which keeps delicate contacts intact.

• Breaks down oxide layers and sulfate deposits
• Wets and penetrates tight gaps between mating surfaces
• Leaves a non-conductive protective film that prevents re-oxidation

Can I use the brush applicator for small or hard-to-reach parts?

Yes—the integrated brush lets you apply the liquid precisely to pins, switch blades, and recessed jacks. The controlled tip reduces waste and prevents fluid from spreading where you don’t want it. This is ideal for PCB connectors, multi-pin plugs, and clustered wiring harnesses.

• Brush delivers liquid exactly to contact faces and seams
• No aerosol overspray—cleaner for confined spaces
• Useful on RCA, XLR, USB, HDMI, and board-mounted connectors

Will DeoxIT also protect contacts after cleaning?

After removing contaminants, DeoxIT leaves a thin lubricating and sealing layer that reduces wear and blocks moisture. This protective residue helps prevent intermittent connections from returning, especially in environments with vibration or humidity. It’s safe for repeated use on most metal contact surfaces.

• Lubricates moving contacts to reduce arcing and wear
• Displaces moisture to lower corrosion risk
• Extends reliable service life between maintenance intervals

What types of equipment are suitable for this product?

DeoxIT is formulated for a wide range of electrical and electronic connectors and components. Use it on audio/video gear, computers, automotive connectors, lighting contacts, and household plugs. Avoid applying to plastics or finishes that may soften—test on an inconspicuous area if unsure.

• Works on switches, relays, jacks, plugs, and multi-pin connectors
• Effective for grounding blocks, battery terminals, and wiring harnesses
• Recommended for pro audio, broadcast, automotive, and consumer electronics

Who is this for? Technicians, audio engineers, hobbyists, automotive mechanics, and facility maintenance staff who need a compact, controllable contact cleaner will find the CAIG LABORATORIES DeoxIT D100L-2DB brush applicator extremely useful. It’s specifically helpful when precise application is required and when restoring or preserving signal quality in tight spaces. Keep one in your toolkit for quick maintenance, emergency fixes, and regular preventive care.

• Features: Removes oxidation and corrosion to restore electrical integrity
• Improves conductivity and signal quality without causing shorts
• Lubricates, seals, and protects contacts from wear and vibration
• Displaces moisture and contaminants for long-lasting reliability
• Safe for many metal electrical connections: batteries, switches, relays, jacks, plugs, wiring harnesses, grounding blocks, RCA, XLR, USB, HDMI, Ethernet

Ingredients

Grease