Hosa DeoxIT D100S-2 Contact Cleaner Spray, 2 oz — 100% Concentrate for Audio & Electronics

Hosa D100S-2 CAIG DeoxIT is a 100% concentrated contact cleaner spray that restores and improves electrical connections on connectors, switches, and metal contacts.

When connections get noisy, intermittent, or resistive, a targeted chemical treatment can revive metal surfaces faster than mechanical cleaning alone. This 2 oz aerosol bottle of DeoxIT from Hosa is formulated to remove oxidation and contamination from audio, video, computer and general electronic contacts. It’s designed for precision use where small amounts of a powerful deoxidizer can make a measurable difference in signal clarity and contact reliability.

How does this product improve connector performance?

DeoxIT works chemically to remove oxide films and residues that increase resistance and create intermittent signals. Unlike simple solvents, it alters the contact surface to promote lower resistance and more reliable conductivity without the need for aggressive scraping.

• Breaks down and dissolves oxide and corrosion layers.
• Leaves a protective surface condition that resists quick re-oxidation.
• Reduces contact resistance for clearer audio and stable data links.
• Safe for most metals commonly used in connectors when used as directed.

Which applications and devices benefit most from DeoxIT?

This cleaner is suitable wherever metal-to-metal electrical contact matters: from instrument jacks and patch bays to RCA, BNC, USB, and switch contacts. It’s commonly used by audio technicians, repair technicians, and hobbyists to restore equipment performance without component replacement.

• Audio gear: jacks, plugs, potentiometers, and connectors.
• Video and broadcast connectors: BNC, RCA, HDMI interface contacts.
• Computing and networking contacts: USB, Ethernet connectors, and board sockets.
• Electronics repair tasks requiring precise, concentrated treatment.

How do you apply the 2 oz spray safely and effectively?

The compact spray bottle allows focused application to small contact areas with minimal overspray. Always power down equipment and follow manufacturer safety guidance—work in a ventilated space and use sparingly where metal contacts are accessible.

• Power off and unplug equipment before application.
• Spray briefly onto the contact or onto a swab for precise cleaning.
• Allow solvents to evaporate fully before restoring power.
• Use small bursts to avoid excess liquid reaching nearby components.

What makes the 100% formula different from other contact cleaners?

At full concentration, DeoxIT delivers stronger deoxidizing action per application than diluted preparations, making it more efficient for stubborn oxidation and heavier contamination. The formulation is engineered to penetrate and condition contact surfaces rather than just lifting dirt.

• Maximum active ingredient concentration for fast results.
• Designed to improve contact surface chemistry, not merely clean.
• Compact 2 oz spray for controlled, workshop-friendly use.
• Works across a wide range of connector types and metal finishes.

Who is this for: Hosa D100S-2 CAIG DeoxIT 100% spray is aimed at audio professionals, technicians, electronics hobbyists, and anyone maintaining connectors that require dependable electrical contact. If you need a portable, high-strength solution to restore signal quality and reduce intermittent faults, this 2 oz bottle offers a precise, powerful option for routine maintenance and targeted repairs.