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tesa® 54332 Fireguard

Fire Containment Sealing Patch for hole covering in battery compartments

Product description

tesa® Fireguard combines an excellent fire- and heat-resistant aluminum laminated glass cloth layer with an extra thick acrylic adhesive sealer. This product is designed to perfectly seal car body holes, especially in the battery area, fireproofing the passenger compartment for at least 5 minutes.

In combination with our tesa® EfficienSeal automated dispensing tool we ensure a highly efficient and automated patch application.
Main features:
  • Fireproofing of car body holes > 5 minutes at 500°C (open flame)
  • Reliable corrosion protection, e.g. punch burrs will be securely sealed by the thick acrylic sealer
  • Suitable to apply before and after the paint shop in areas with no stone-chipping requirements 
  • Excellent temperature resistance (no shrinkage) up to 200°C
  • Good paint anchorage and UBC (PVC) compatibility
  • Good acoustic insulation properties
  • Secure adhesion to painted substrates and reinforced plastic substrates in automotive lightweight constructions, e.g. CFRP

Main applications

tesa® 54332 Fireguard is designed for sealing underbody holes in the battery compartment area. In case of battery fire it will protect the passenger compartment from fire entry for at least 5 min. To ensure the highest performance possible, our aim is to fully understand your application (including the substrates involved) in order to provide the right product recommendation.

Additional Info

Fireproofing tesa acc. VCS 7511, 17, 3.8 Fire Ingress
Rolls with customer specific patch dimensions can be delivered according to customer requirements and applications.
In case the product will be applied in the underbody area we are recommending an additional coverage due to low stone chip performance. 
We support your individual application process with tesa designed dispensing solutions to ensure a quick and reliable sealing of holes in the car body.

By fitting your robot with the best end arm tooling we enable a smart automation concept in your production site. Ask for our tesa® EfficienSeal automated dispensing tool to ensure a highly efficient and automated patch application.

Technical properties

Type of adhesive

modified acrylic

Temperature resistance (30 min)

200 °C

Type of liner

PE-coated paper

Total thickness

1010 µm

Backing material

aluminium laminated glasscloth

Puncture Resistance

400 N

Adhesion to Steel (after 14 days)

22 N/cm



Rating properties



UBC / Paint Compatibility


Flame Resistance


Noise damping


Humidity Sealing


tesa® products prove their impressive quality day in, day out in demanding conditions and are regularly subjected to strict controls. All technical information and data above mentioned are provided to the best of our knowledge on the basis of our practical experience. They shall be considered as average values and are not appropriate for a specification. Therefore tesa SE can make no warranties, expressed or implied, including, but not limited to any implied warranty of merchantability or fitness for a particular purpose. The user is responsible for determining whether the tesa® product is fit for a particular purpose and suitable for the user’s method of application. If you are in any doubt, our technical staff will be glad to support you.

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