WALTHER STRONG Self-Expanding Foam Tape - 10mm x 4.3m

Name: WALTHER STRONG Self-Expanding Foam Tape - 10mm x 4.3m
Brand: WALTHER STRONG
SKU: ija2hazt5a
Availability: InStock

Walther Strong Self-Expanding Foam Tape is a soft, flexible expanding foam sealing tape designed t...

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Walther Strong Self-Expanding Foam Tape 10 Mm X 4.3 M - White

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B&QB&Q - Self-Expanding Foam Tape 10mm X 4.3M (5mm-35mm Expansion) Expanding Gap Seal

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Product Information

Full details

The Walther Strong Self-Expanding Foam Tape is designed for builders, renovators, and DIY enthusiasts who need a reliable way to seal gaps between varying building materials. Its primary strength lies in its ability to expand from 5mm to 35mm, offering a versatile solution for uneven joints in brick, concrete, timber, or plastic. While it provides excellent weather and acoustic protection, users should note that the expansion process takes 2 to 3 hours to fully set, requiring patience during application.

All features

Model Part Number	1437800
Brand	WALTHER STRONG

Extended Product Information

FAQs

How long does it take for the tape to fully expand?

The tape will fully expand to fill the joint within 2 to 3 hours depending on the ambient temperature.

Can this tape be used outdoors?

Yes, it is designed with UV stability and moisture resistance, making it suitable for both internal and external use.

Will this tape block out sound?

Yes, it provides improved acoustic performance by sealing the gaps that allow sound transmission.

Is it safe to use on plastic window frames?

Yes, the tape is compatible with plastics, provided the surface is clean and free of contaminants.

What is the maximum gap size this tape can fill?

The tape is designed to expand up to 35mm, making it ideal for gaps between 5mm and 35mm.

Troubleshooting

Tape is not expanding to the full expected thickness

Ensure the tape was not stretched excessively during installation and that the ambient temperature is sufficient for the foam to react.

Tape peeling away from the surface shortly after application

Verify that the surface was completely clean, dry, and free of dust or oils before sticking the adhesive side down.

Pros and Cons

Pros

Versatile expansion range covers multiple gap sizes
Excellent for uneven or irregular surfaces
Simple to install with no specialized tools required
Provides both thermal and sound insulation
Maintains seal effectiveness during structural movement

Cons

Requires 2-3 hours for complete expansion
Not suitable for load-bearing joints
Once expanded, it cannot be reused if misapplied

Setup, Compatibility & Care

Application is straightforward: measure your gap, cut the tape to the desired length, peel back the adhesive liner, and press firmly into place. The tape begins its controlled expansion immediately. For care, avoid over-stretching the material during application as this can reduce the final thickness and density of the seal. It is compatible with wood, concrete, and plastic, but should be tested on delicate surfaces or specific coatings first. Store the unused roll in a cool, dry place and ensure the packaging remains sealed to prevent premature expansion or adhesive degradation.