Parker SignaSpray® Conductive Electrode Spray & Skin Prep | 18-25, 18-28 & 18-04

Parker Laboratories SignaSpray® Electrode Solution and Skin Prep is a highly conductive, non-gritty spray electrolyte designed to prepare intact skin and improve electrical contact for compatible electromedical procedures.

Unlike a thick electrode gel, cream, paste, or abrasive skin-preparation product, SignaSpray is applied as a light spray before compatible electrodes are positioned. The water-soluble formula is bacteriostatic, non-staining, easy to clean, and designed to leave minimal residue.

Current product information recommends SignaSpray for electromedical procedures other than defibrillation and specifically identifies compatibility with muscle stimulation, TENS, EMS, IF, and other electrotherapy equipment when permitted by the equipment manufacturer.

SignaSpray Sizes & Parker Product Numbers

Why Choose SignaSpray?

• Highly conductive spray electrolyte
• Designed for compatible muscle stimulation and electrotherapy equipment
• Non-gritty skin-preparation format
• Bacteriostatic
• Non-staining
• Water-soluble
• Easy spray application
• Minimal residue build-up
• Easy cleanup with a damp cloth
• A clear working bottle makes the remaining volume easy to see
• Available from one 250 mL spray bottle through a complete four-gallon refill system

SignaSpray is nonsterile and is not indicated for defibrillation.

SignaSpray vs. Electrode Gel

SignaSpray and conventional conductive electrode gel perform related—but not identical—jobs.

Choose SignaSpray when a sprayable conductive skin-preparation medium is preferred.

For a conventional saline electrode gel, compare Parker SignaGel® Electrode Gel.

SignaSpray vs. SignaCreme

Both are conductive media, but their handling is very different.

Choose SignaSpray when fast spray application matters.

Choose SignaCreme® Conductive Electrode Cream when a cosmetic-quality cream electrolyte is preferred.

SignaSpray vs. Spectra 360

The distinction is especially important for TENS and muscle stimulation.

For prolonged conductive contact or conductive rubber/carbon electrodes, compare Spectra® 360 Electrode Gel.

SignaSpray vs. NuPrep Skin Prep Gel

These products should not be treated as substitutes simply because both use the term “skin prep.”

Use NuPrep Skin Prep Gel for its manufacturer-listed EEG, ECG, and monitoring skin-preparation workflows.

Use SignaSpray when a non-gritty conductive spray electrolyte is appropriate for the electromedical equipment being used.

Can SignaSpray Be Used With TENS, EMS, or NMES?

Parker's current product information specifically includes TENS, EMS, IF, and muscle stimulation among SignaSpray's compatible electromedical applications.

That does not mean every electrode requires additional conductive solution.

Many modern self-adhesive TENS/NMES electrodes already contain their own conductive hydrogel. Do not add SignaSpray beneath a self-adhesive electrode unless the electrode and stimulator instructions allow it.

SignaSpray can be especially relevant in workflows using compatible reusable electrodes or other stimulation interfaces that call for a separately applied conductive medium.

Browse our Electrotherapy Electrodes for available pad and electrode options.

18-25—250 mL / 8.5 oz Spray Bottle

REF 18-25 is the most practical configuration for individual treatment rooms and portable use.

The clear bottle allows staff to see the remaining solution level without opening the container.

Parker packages 18-25 as 12 bottles per manufacturer box.

18-28 — 1 Gallon Refill Configuration

REF 18-28 contains one gallon / 3.8 liters of SignaSpray and a refillable spray dispenser.

The dispenser pump is not included with 18-28.

That distinction should be clearly visible in the variant selector because a pump is included with the complete 18-04 SIGNASPRAYPAC.

18-04 — SIGNASPRAYPAC

The current Parker SIGNASPRAYPAC includes:

• 4 one-gallon containers of SignaSpray
• 2 refillable spray dispensers
• 1 dispenser pump

This is the most economical Parker configuration for facilities maintaining multiple treatment rooms or consuming electrode solution routinely.

How Is SignaSpray Applied?

Parker's current instructions are straightforward:

Apply SignaSpray to intact skin and then position the compatible electrodes according to the electromedical-device instructions.

The exact quantity and electrode configuration should follow the instructions supplied with the equipment rather than a universal spray count.

SignaSpray Is Water-Soluble

After use, Parker states that SignaSpray can be removed using a soft cloth moistened with water.

That gives SignaSpray a different cleanup profile from adhesive conductive gels and electrode pastes designed to remain tacky during procedures.

For a broader selection of contact media, browse Balego's Conductive Gels, Lotions & Contact Media.

Important: SignaSpray Is Nonsterile

SignaSpray is a nonsterile conductive medium.

Parker's current instructions limit application to external use on intact, unbroken skin.

Do not apply it to open wounds or compromised skin, and discard the product if the package is damaged or there is evidence of contamination.

SignaSpray Is Not for Defibrillation

Parker specifically contraindicates SignaSpray for defibrillation procedures.

Do not assume that every electrically conductive medium can be used interchangeably with a defibrillation gel.

When a defibrillation workflow requires a separately applied electrolyte, use only a product specifically permitted by both the conductive-medium manufacturer and the defibrillator instructions.

Proper Refill Technique

Bulk refill containers require a controlled hygiene process.

Before refilling a SignaSpray bottle:

1. Use or discard the remaining contents—do not top off a partially filled bottle.
2. Wash the reusable container with hot soapy water.
3. Rinse and thoroughly dry it.
4. Clean the bottle neck and dispenser tip with isopropyl alcohol or an appropriate hospital-grade disinfectant immediately before refilling.
5. Refill only the correctly labeled SignaSpray bottle.
6. Mark the bottle with the bulk-container lot number and expiration date.
7. Discard cracked or damaged dispensers.

The spray nozzle and bulk dispenser tip should not contact patients, staff, or instruments.

SignaSpray Technical Specifications

Frequently Asked Questions

Is SignaSpray an electrode gel?

No. SignaSpray is a liquid conductive spray electrolyte and skin preparation solution, not a gel.

Is SignaSpray abrasive?

No. Parker specifically describes it as non-gritty.

This distinguishes it from mildly abrasive preparation products such as NuPrep.

Can SignaSpray be used with TENS?

Parker's current product page lists TENS among the compatible electrotherapy categories. Use it only when the TENS unit and electrode instructions permit a separately applied conductive solution.

Can SignaSpray be used with EMS or NMES?

Parker specifically recommends SignaSpray for muscle-stimulation equipment and currently lists EMS among its intended electrotherapy applications.

Can SignaSpray be used with interferential stimulation?

Parker's current product information lists IF among the electrotherapy applications. Follow the clinical device and electrode manufacturer's instructions.

Should I spray it under self-adhesive TENS pads?

Do not automatically add conductive solution to self-adhesive hydrogel electrodes. Those pads already contain a conductive gel layer. Follow the electrode manufacturer's instructions.

Is SignaSpray sterile?

No. It is nonsterile.

Can SignaSpray be used on broken skin?

No. Parker limits use to intact, unbroken skin.

Can SignaSpray be used for defibrillation?

No. Parker specifically states that it is not indicated for defibrillation.

Is SignaSpray easy to remove?

Yes. It is water-soluble, and Parker instructs users to remove it with a moistened soft cloth.

Does 18-28 include the dispensing pump?

No. REF 18-28 includes a refillable spray dispenser, but the bulk dispensing pump is not included.

Which SignaSpray configuration includes a pump?

The 18-04 SIGNASPRAYPAC includes one pump, four gallons, and two refillable spray dispensers.

Can a SignaSpray spray bottle simply be topped off?

No. Parker instructs users to consume or discard the remaining contents, properly clean and dry the reusable bottle, disinfect the neck and dispensing tip, and then refill it.

How should SignaSpray be stored?

Parker's current IFU says to protect SignaSpray from direct sunlight.

Product-use notice: SignaSpray is a nonsterile conductive spray electrolyte intended for compatible electromedical procedures on intact, unbroken skin. It is not indicated for defibrillation. Follow the current Parker IFU and the instructions supplied with the stimulation device and electrodes.