Tesa door and window seal strip 05452-00100-00 frameless 10 m x 9 mm, for above/side/under doors and windows

Tesa frameless door and window seal strip (10 m x 9 mm) is a self-adhesive foam tape designed to seal gaps around doors and windows. It fills narrow openings of 1–5 mm to reduce draughts, limit dust and moisture ingress, and dampen closing noise. The flexible foam profile sticks to most flat surfaces and is intended for indoor use to improve thermal and acoustic comfort.

Advantages

The product combines a soft, flexible foam with a pressure-sensitive adhesive backing for quick installation without tools. It provides both thermal insulation by blocking cold air and acoustic cushioning to reduce slamming and noise transfer. Its frameless profile and narrow width make it suitable for use above, beside or under doors and windows while remaining unobtrusive.

Suitable for

• Sealing gaps between door leaves and frames (above, side or under)
• Reducing draughts from windows with small visible gaps
• Soft cushioning for cupboards, closets and interior doors to cut noise
• Indoor applications on most flat, clean surfaces

When it may not be suitable

This foam tape is designed to fill narrow gaps of about 1–5 mm; it is not suitable for larger openings or highly uneven surfaces where a wider or compressible seal is required. It is intended for indoor use — prolonged outdoor exposure to weather, direct sunlight or heavy moisture can shorten its effective lifetime.

Key specifications

• Length: 10 m
• Width: 9 mm
• Sealing range: fills gaps from 1 to 5 mm
• Material: flexible foam with self-adhesive backing
• Intended use: indoor thermal and acoustic sealing
• Typical durability under normal indoor conditions: around 1–2 years

How to use

Prepare the mounting surface by cleaning it with alcohol or a silicone-free household cleaner and allow it to dry. Measure and cut the tape to the required length, remove the protective liner from the adhesive side, then press the foam firmly onto the flat surface along the gap. Apply even pressure along the strip to ensure good adhesion. For best results, avoid stretching the tape during application and allow the adhesive to bond before subjecting it to mechanical stress.

What to consider before purchase

• Confirm gap width is within 1–5 mm for effective sealing
• Intended for indoor use — not recommended for continuous outdoor exposure
• Ensure the mounting surface is flat, clean and dry for reliable adhesion

Usage recommendations

Use the tape on clean, dry door or window frames for best results. For noisy cabinet or closet doors, position the foam where the door leaf contacts the frame to reduce impact noise. Replace the strip when signs of wear, loss of adhesion or compression appear to maintain sealing performance.