• ternimed@droh.de
  • Online discount | 1% generally - 2% from 500 € order value
  • Low shipping costs within the EU
  • ternimed@droh.de
  • Online discount | 1% generally - 2% from 500 € order value
  • Low shipping costs within the EU

Gels and pastes are essential consumables in neurological and neurophysiological diagnostics. They support skin preparation, reduce the contact resistance between the skin and the electrode, and stabilize the recording throughout the entire measurement period. In EEG, EMG, ENG, IONM, ECG, and sleep diagnostics, they help minimize artifacts caused by insufficient contact, micromovements, or dry recording sites. The selection of the appropriate product depends on the electrode design, application site, and planned recording duration.

This category includes conductive contact gels, high-adhesion electrode pastes, and products for mechanical skin preparation. Contact gels are generally water-based and electrolytically conductive. They are used under surface electrodes or in electrode holders to achieve stable conductivity and reproducible impedance values. Electrode pastes have a higher viscosity and, in addition to conductivity, also provide fixation, for example, with cup electrodes, cap electrodes, or long-term measurements. Skin preparation gels are designed for the controlled reduction of skin impedance and promote a clean contact surface. The formulations are optimized for use with Ag/AgCl electrodes, cup electrodes, and EMG and ECG electrodes.

Further description & contact

Compatibility and application

Gels and pastes are compatible with common EEG systems, EMG and ENG devices, IONM setups, and PSG and screening systems. They are used with surface electrodes, adhesive electrodes, cup electrodes, and EEG caps. For stable recording, oil-free skin, a defined amount of product, and secure cable relief are essential. A paste-like consistency is often preferred for long-term recordings, while conductive gels are practical for short-term measurements. The products are suitable for all surface electrodes used in neurophysiology but are not suitable for use with invasive electrodes. Hygienic removal and application should be carried out according to the manufacturer's instructions, for example, using disposable spatulas or dispensing systems.

Safety and Regulations

Gels and pastes in this category are typically CE-marked medical devices and comply with the requirements of the MDR (EU) 2017/745. They are intended exclusively for professional use. Application must be carried out by trained personnel, observing the intended purpose, shelf life, and storage conditions. In case of skin irritation or intolerance, the manufacturer's instructions must be followed, and use discontinued.

Benefits for Users

Consistent impedance control improves signal quality and reduces interfering artifacts. Users benefit from reproducible recording conditions, standardized preparation, and application-oriented product selection. Different viscosities support routine examinations as well as longer recording times in sleep diagnostics or monitoring applications.

Contact Our Technical Support Team

Our technical support team is happy to assist you with any questions regarding application, compatibility, or a specific product.

For initial contact, please write to ternimed@droh.de.

You will receive a prompt, qualified response.

FAQ – Frequent Questions About Gels and Pastes

What is the difference between gel and paste?

Gels have a lower viscosity, are often purely conductive and are frequently used with surface electrodes or under EEG caps. Pastes are higher in viscosity, provide an adhesive (sticky) function, and are primarily used for fixing cup electrodes in long-term monitoring

What role does skin preparation play for signal quality?

Appropriate skin preparation reduces the transition resistance and improves reproducibility. It can reduce movement effects and contact artefacts, especially with dry or heavily keratinised skin.

What impedance value should I aim for?

For clinical EEG and evoked potential (EP) recordings, impedance should ideally be below 5 kΩ per electrode. This low value minimises susceptibility to external electrical interference (artefacts) and ensures an optimal signal-to-noise ratio.

When is an electrode paste more sensible than a contact gel?

Pastes are preferred when additional mechanical fixation is required, for example with cup electrodes, EEG caps, or during longer recording times.

Are the products also suitable for newborns?

Many of our formulations are explicitly hypoallergenic and pH-neutral. Nevertheless, for newborns or sensitive skin, the specific product specification must always be checked and a skin preparation medium without abrasive particles should be preferred.

For what are conductive gels and pastes used in EEG and EMG?

They serve to improve the contact between skin and electrode. The goal is a low and stable impedance to achieve a clean recording and fewer artefacts.

May gels and pastes be reused or reprocessed?

Gels and pastes are consumables. Reprocessing is not intended. Hygienic removal, patient-related application and the use of suitable application aids are governed by the manufacturer’s instructions and internal hygiene standards.

How can the risk of artefacts from poor contact be reduced?

Important factors are clean, degreased skin, sufficient contact area, a defined product quantity and stable fixation of the electrodes. In addition, cable pull and movement should be minimised through appropriate strain relief.

Gels & Pastes