Activator-Primer (Canister) Additional Uses for This Product

As part of our continuous research, product improvement, feedback and testing, we are further enhancing the uses of Activator-Primer (Canister).

Original Uses of Activator-Primer (Canister)

When Activator-Primer was originally launched in summer 2019, demand for torch-free membranes was increasing and there was growing use of self-adhesive Air & Vapour Control Layers and underlayers.

Coupled with increasingly demanding thermal performance requirements, multi-layer insulation build-ups using foil-to-foil installation techniques were becoming more common.

To support these applications and reduce the number of different adhesives required on site, Bauder has undertaken additional testing of the non-flammable Activator-Primer to confirm its suitability for certain adhesive applications.

What Additional Uses Are There for Activator-Primer (Canister)?

Activator-Primer (Canister) was originally developed to prepare substrates, insulation facings and underlayers prior to the installation of self-adhesive membranes.

Following extensive testing, Bauder can now confirm that the product can also be used as:

• Foil-to-foil contact adhesive
• Fleece-backed membrane adhesive

The product is a synthetic rubber resin-based material using a non-flammable solvent and propellant system.

These additional uses are included on the updated product label, Product Data Sheet and within this Contractor Update.

When Do the Changes Come Into Effect?

New specifications written from the date of this update will include Activator-Primer as the preferred foil-to-foil contact adhesive in place of the previous yellow Foil Contact Adhesive where applicable.

Other approved uses of Activator-Primer will also be incorporated into Bauder specifications where appropriate.

What About Existing Specifications?

For historic specifications where Activator-Primer was not specified, Bauder will not insist on a change.

For a limited period, a small stock of Foil Contact Adhesive will remain available for projects where a change of product is not possible.

Activator-Primer (Canister) Uses

Primer For

• OSB
• Plywood
• Timber
• Metal
• Existing asphalt
• Bitumen membranes

Bonding Of

• Bituminous self-adhesive membranes to insulation facings
• Cap sheet to underlayer in torch-free applications
• Angle fillets
• Ridge and Valley infills to FA Tapered Insulation

As a Foil-to-Foil Contact Adhesive

• Bonding multi-layer installations of Bauder FA-TE, FA and FA Tapered insulation
• Bonding Bauder FA-TE, FA and FA Tapered insulation to Bauder KSD Foil systems

As a Single Ply Membrane Contact Adhesive

• Thermofol FB membranes to insulation or deck
• All Thermoplan membranes (FB and non-FB) to insulation or deck

Activator-Primer (Canister) Cannot Be Used For

• Priming concrete, lightweight concrete or cementitious materials
• Bonding insulation to mica-faced AVCLs (e.g. FA-TE to KSD Mica)
• Laminated paper-foil faced insulation
• EPS or XPS insulation
• BauderROCK, BauderGLAS or proprietary alternatives
• Non-fleece-backed Thermofol membranes to deck or insulation facings

Please contact the Bauder Technical Department if you require clarification on any additional applications.

Characteristics and Advantages

• Non-flammable
• One canister
• One product capable of multiple functions - primer, activator and adhesive
• Reduced waste through fewer adhesive products on site
• Quick and simple application
• Primes most substrates
• Up to 50% quicker than roller application
• Improves adhesion in temperatures down to 0°C
• Improved underlayer adhesion without additional heat
• Helps pull underlayers tightly to insulation, reducing wrinkles and air pockets
• Supports torch-free installation methods
• Typical drying time of 5-10 minutes
• Particularly beneficial on smaller adhered single-ply projects using DBR 06 or KSD Foil

Health & Safety

Information regarding handling, storage and disposal can be found in the latest Safety Data Sheet and should be consulted before use.

Product Information & Technical Performance

Emptying and Disposing of Your Canister Safely

Canisters may be disposed of as scrap metal once emptied and depressurised in accordance with the European Waste Directive. Please refer to the Bauder Canister Set-up & Maintenance Guide for the correct procedure.

• EWC 150104 – Empty and depressurised aerosol with no hazardous residues.
• EWC 160504 – Full or partially full aerosol still containing adhesive and/or compressed gas.

Technical Data

• Gross Weight: 20.5kg
• Net Weight: 14.4kg
• Colour: Black
• Base: Synthetic Rubber
• Coverage as Primer/Activator: 75m² (two coats) / 150m² (one coat)
• Coverage as Foil-to-Foil Adhesive: 75m² perimeter zones / 100m² field areas
• Coverage as Membrane Adhesive: 75m²
• Shelf Life: 12 months unopened
• Application Temperature: +5°C to +30°C
• Drying Time at 10°C: 5-10 minutes
• Cleaner: Spray Gun Nozzle Cleaner
• Re-Coat Time: 4 hours
• Bauder Part Number: GB60300120

Perimeter zones are defined in BS EN 1991-1-4. Project-specific wind uplift calculations take precedence over general guidance.

Please refer to the Product Data Sheet for additional information regarding applications and installation guidance.

Storage and Handling

The product should be stored unopened in a secure storage cage, in dry conditions, at temperatures between +5°C and +25°C. Storing the product within these parameters will ensure the stated shelf life is achieved.

Please do not hesitate to contact us should you have any queries regarding the above.