Wykamol Liquid Gas Membrane Temporarily Unavailable Due to Supplier Issues

Toner Dampproofing Supplies Ltd has received an updated statement from Mapei (UK) Ltd regarding the availability of Wykamol Liquid Gas Membrane and related products.

Mapei has confirmed that, due to unforeseen supplier issues, it is currently unable to supply Wykamol Liquid Gas Membrane and derivatives of the product.

This is a temporary supply issue rather than confirmation that the product has been permanently discontinued.

Update to Our Previous Product Notice

On 29 July 2026, we published a product notice stating that Wykamol LGM Liquid Gas Membrane had been discontinued by the manufacturer.

Following the new written clarification received from Mapei (UK) Ltd, we are updating that information.

Wykamol Liquid Gas Membrane is currently unavailable because of supplier-related issues. Mapei has advised that it is working to resolve the situation and believes a solution may be available within the coming weeks.

However, no confirmed restocking date has yet been provided.

Products Affected

The manufacturer’s statement relates to:

• Wykamol Liquid Gas Membrane.
• Derivatives and related versions of the product.

Availability may remain limited until Mapei resolves the current supply issue.

Customers should contact us before specifying or attempting to order the product for an upcoming project.

Can Wykamol Liquid Gas Membrane Still Be Ordered?

Wykamol Liquid Gas Membrane is not currently available for us to supply.

We will review its availability once Mapei provides further information or confirms that production and distribution have resumed.

Customers should not rely on an anticipated return date when planning time-sensitive work, as the manufacturer has not provided a guaranteed date for renewed availability.

Should I Specify It for a New Project?

We recommend that customers avoid specifying Wykamol Liquid Gas Membrane for new or time-sensitive projects until its availability has been confirmed.

Where the product has already been included within a drawing, specification or proposed system, contact our Technical Team before selecting an alternative.

The suitability of any replacement will depend on factors including:

• The type and concentration of gas risk.
• Whether protection is required against radon, methane, carbon dioxide or another contaminant.
• The moisture or damp protection requirements.
• Whether the application is above or below ground.
• The substrate and construction type.
• The required certification, testing or specification.
• Compatibility with other components within the protection system.
• The project designer’s, architect’s or surveyor’s requirements.

A replacement membrane should not be selected solely because it appears similar. Its technical suitability, certification and compatibility must be confirmed for the intended application.

What Happens to the Product Page?

The Wykamol Liquid Gas Membrane product page will remain available however unavailable for ordering while the supply issue continues.

We will review the page when further information is received from Mapei.

Where appropriate, customers may be directed to a relevant product category or asked to contact our Technical Team for assistance. We will not present an alternative as a direct replacement unless its suitability for the intended application can be properly established.

Mapei’s Statement

Mapei (UK) Ltd has advised that the supply interruption has been caused by unforeseen issues involving its supplier.

The manufacturer has stated that it is working to remedy the situation and believes it may have a resolution within the coming weeks. Mapei has also apologised for any inconvenience caused.

This timeframe should be treated as an indication rather than a confirmed date for renewed availability.

Frequently Asked Questions