Does this work on doors that have small gaps in the main body of the door do that it seals those gaps?

Yes, as long as the gaps are no more than 6-7 mm. I used it for windows

Does it to work for a sash window ? If so, where can I apply it ?

I doubt very much if this type of draught excluder will work as it is designed to seal when compressed. The material will tear as the sashes slid. Modern sash windows have brush-type draught strips which I have on my windows so I would opt for this.

Cheeky! The rolls come in various lengths. The roll size is indicated in the top right corner of the pack i.e.6m, 10m etc. So select the length you require.

Can this item be used on doors.

Yes, I bought it for that purpose and can confirm it did the job very well.

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tesa INSULATION Premium Sealing Tape - 6 m x 9 mm x 7 mm - Transparent

tesa INSULATION Premium Sealing Tape - 6 m x 9 mm x 7 mm - Transparent

Product ID: 50049622

Details

Brand
tesa UK
Colour
Transparent
Item thickness
7 Millimetres
Material
Silicone
Product dimensions
6L x 0.01W

🪟Seals 1-7 mm gaps

🌡️40% energy savings

🛡️15-year durability

Description

🛠️ Seal smart, save big — the invisible energy hero your home deserves!

INVISIBLE PROTECTION - Transparent tape blends seamlessly with any door or window frame for a sleek, professional finish.
CUT ENERGY COSTS BY 40 - Effectively blocks drafts to keep your home cozy and your bills low.
PRECISION FIT FOR EVERY GAP - Flexible silicone profile seals gaps from 1 to 7 mm, ensuring a perfect airtight barrier.
LONG LASTING WEATHERPROOF SHIELD - Built to withstand UV, ozone, and extreme weather for 15 years of reliable protection.
EFFORTLESS SELF ADHESIVE APPLICATION - Peel and stick design makes installation quick and mess-free—no tools required.

tesa INSULATION Premium Sealing Tape is a transparent, self-adhesive silicone strip designed to seal gaps between 1 and 7 mm in doors and windows. Engineered for durability, it resists weather, UV rays, and ozone for up to 15 years, reducing energy loss by up to 40%. Its flexible profile ensures a perfect fit, delivering long-term insulation that cuts drafts, noise, and humidity while maintaining a discreet appearance.

Specifications

ASIN	B0060V9FP4
Best Sellers Rank	77,875 in DIY & Tools ( See Top 100 in DIY & Tools ) 18 in Weatherproofing Window Insulation Kits
Brand	tesa UK
Colour	Transparent
Country of Origin	Germany
Customer Reviews	4.2 out of 5 stars 3,842 Reviews
Global Trade Identification Number	04042448233455, 04042448920959
Included Components	Insulating Tape
Item Dimensions L x W	6L x 0.01W metres
Item Highlight	Self-Adhesive Silicone Sealant for Insulating Gaps in Windows and Doors - Protects against the Cold, Heat, Noise and Humidity
Item Thickness	7 Millimetres
Item Type Name	Burlete Silicona Perfil Ω 6m x 9mm transparente
Item Weight	0.18 Kilograms
Item thickness	7 Millimetres
Manufacturer	tesa
Material	Silicone
Model Number	05417-00200-02
Number of Items	1
Number of Packs	1
Part Number	05417-00200-02
Product dimensions	6L x 0.01W metres
Recommended Uses For Product	Insulate gaps on doors and windows
Recommended uses for product	Insulate gaps on doors and windows
UPC	798256169908
Unit Count	1.0 count

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