DIY Doctor DD-BUT Butyl Waterproof Tape, 100mm x 4m

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Product guide

DIY Doctor DD-BUT Butyl Waterproof Tape, 100mm x 4m

DIY Doctor DD-BUT is a 100mm x 4m butyl waterproof tape listed for outdoor repair and sealing. Its stated material and waterproof rating suit buyers looking for a tape format for roof, gutter or other compatible-surface repairs, though customer reports on adhesion and water resistance vary.

At a glance

100mm-wide, 4m-long roll of butyl tape according to the product title and size detail.
Listed for outdoor use and recommended for metal, plastic, glass and concrete.
Single-sided tape with butyl adhesive.

Price

£12.34Save 25%

Reference price: ~~£16.46~~

Price checked: 12 Nov 2026

View offer

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Pros and cons

Pros

The roll format and 100mm width offer a broad strip for patching and sealing rather than narrow joint-only applications.
The listing names several surface types, including metal, plastic, glass and concrete.

Technical specifications

17 specifications

Identity
Brand	DIY Doctor
Model	DD-BUT

Dimensions and installation
Listed size	100mm x 4m
Weight listed	1.07 Kilograms
Adhesive format	Tape
Adhesive sides	1
Adhesive location	On tape

Materials and protection
Material listed	Butyl Rubber
Adhesive material	Butyl
Water resistance listed	Waterproof
Other listed features	Waterproof, Weather-Resistant
Upper temperature rating	45 Degrees Celsius
Surface recommendation	Metal, Plastic, Glass, Concrete
Compatible material	Glass, Metal, Plastic
Colour	silver,
Recommended use	Outdoor

Pack details
Configuration	1 x Butyl Tape Waterproof

What to know before buying

Listing details to confirm

The listing details are inconsistent about length: the title and size field state 100mm x 4m, while Unit Count says 5.0 meter. Surface compatibility also differs between entries, with concrete appearing only in the surface recommendation. Confirm the selected listing's roll length and intended surface before purchase. Customer feedback also describes mixed adhesion and water-resistance results, so performance for a particular leak is not assured.

What’s in the box

Included

1 x waterproof butyl tape

Who is it for?

A good fit for

People seeking a butyl tape roll for outdoor roof, gutter, shed or caravan repair where the listed material and dimensions fit the job.
Buyers who want a tape listed for use on metal, plastic, glass or concrete.

Less suited to

Buyers who need a confirmed 5m roll, since the listed size is 100mm x 4m but another detail says 5.0 meter.
Anyone needing guaranteed leak-stopping performance, as customer feedback on stickiness and water resistance is mixed.

DIY Doctor DD-BUT Butyl Waterproof Tape, 100mm x 4m · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 4,225 ratings

5 stars58%58%
4 stars20%20%
3 stars9%9%
2 stars3%3%
1 star10%10%

Customer feedback highlights ease of use, versatility and functionality, with some customers reporting durability lasting up to two years. Reports on stickiness and water resistance are mixed, including both successful adhesion to plastic guttering or conservatory roofing and cases of poor adhesion or water coming through. For an outdoor repair, this matters because the listing's waterproof claim and compatible-surface details do not guarantee the same result on every job.

Positive themes

Customers describe the tape as easy to use and versatile.
Some customers report it remains strong for up to two years.

Negative themes

Some customers report that the tape has little or no stickiness.
Some report that water comes through rather than being stopped.

Mixed feedback

Customers' accounts of adhesion and water resistance vary, including both successful leak stopping and unsuccessful results.

Frequently asked questions

What size is the DIY Doctor DD-BUT tape?

The title and size detail give 100mm x 4m. Another listing detail says 5.0 meter, so confirm the roll length on the selected listing.

Which surfaces does the listing recommend?

The surface recommendation names metal, plastic, glass and concrete. A separate compatible-material entry lists glass, metal and plastic, so concrete is not repeated there.

Is the tape intended for outdoor use?

Yes. The listing gives Outdoor as its recommended use and describes the tape as waterproof and weather-resistant.

Do customers report consistent adhesion and water resistance?

No. Customer feedback is mixed: some report good adhesion and leak stopping, while others describe poor stickiness or water coming through.