Ultratape 50mm x 10m Black DPC Jointing Tape - D/S Butyl

The Ultratape 50mm x 10m Black DPC Jointing Tape – Double-Sided Butyl is a high-performance sealing tape designed for securely jointing damp proof courses and membranes in masonry construction. Manufactured with a strong butyl rubber adhesive, it provides an airtight and watertight seal, preventing moisture ingress at overlaps, joints and penetrations.

With a 50 mm width, this DPC jointing tape is ideal for creating continuous damp proof barriers where sheets or rolls of DPC overlap. The double-sided butyl adhesive ensures excellent adhesion to polyethylene DPC, plastic membranes and other compatible construction materials. Supplied in a 10 metre roll, it is easy to apply on site, improving installation speed and long-term reliability in both new-build and refurbishment projects.

Key Features

• Double-sided butyl DPC jointing tape

• 50 mm width for secure DPC overlaps and joints

• Provides a watertight and airtight seal

• Strong adhesion to polyethylene DPC membranes

• Flexible and easy to apply on site

• Supplied in a 10 metre roll

Typical Applications

• Jointing and sealing damp proof course (DPC) membranes

• Sealing overlaps in cavity wall DPC installations

• Damp proofing in brickwork and blockwork construction

• New-build housing and extensions

• Repair and refurbishment projects

Performance & Workability

• Creates a continuous moisture barrier at DPC joints

• Excellent bond strength with butyl rubber adhesive

• Maintains flexibility to accommodate minor movement

• Quick and clean application without specialist tools

• Improves overall damp proofing performance

Technical Specification

• Product Type: DPC Jointing Tape

• Adhesive Type: Double-Sided Butyl

• Width: 50 mm

• Roll Length: 10 m

• Colour: Black

• Compatibility: Polyethylene DPC and damp proof membranes

• Use Class: External / Structural

Why Choose Ultratape 50mm x 10m Black DPC Jointing Tape?

The Ultratape D/S Butyl DPC Jointing Tape provides a reliable, long-lasting solution for sealing damp proof course joints and overlaps. Its strong adhesion and waterproof performance help maintain the integrity of damp proof systems, making it a dependable and cost-effective choice for professional builders and contractors.