HS Butyl GCA

Identification

Chemical Family

Butyl Rubber

GBU

BAS

RTU Product Type

Tape

Categories

Markets → Building & Construction → Applications → Building Envelope & Roofing → Waterproofing & Weatherproofing

Technologies → Adhesives & Sealants → Product Families → Pressure Sensitive Adhesives, Tapes & Labels → Tapes

Applications

Application Area

Roofs,

Metal Building,

Skylights,

Flashings,

Roof Sealing,

Gap Sealing,

Cladding,

Lap Joints,

Ridge Tiles,

Caisson Rings

Compatible Substrates & Surfaces

Metal,

Aluminum,

Steel

Applications & Uses

Application Instructions

Surface preparation

• All surfaces should be clean, dry, and free from frost, grease, and loose materials.

Application

• Apply directly from the reel onto one surface and press along its entire length to ensure good initial adhesion.
• Remove the backing paper, position the other surface onto the sealant, and push firmly to seal across the joint.

Product Application

• External metal sheeting – sealing end and side laps in steel and aluminium roofing systems.
• Metal liner sheeting – sealing end laps.
• Sealing rooflights.
• Sealing metal flashings.
• Ridge and eaves sealing in combination with foam fillers.
• Sealing penetrations to roof and wall cladding.

Features

Ready-to-Use Product Features

Good Adhesion,

High Performance,

Excellent Service Life,

High Tack

Features & Benefits

Product Features

• 25-year warranty (UK & Ireland only).
• Outstanding service life.
• High tack product, providing excellent adhesion.
• Excellent track record of proven performance.
• Strong, flexible, and designed specifically to accommodate movement.

Packaging & Availability

Regional Availability

• Asia Pacific
• Europe
• Global
• North America
• Latin America
• India/MiddleEast/Africa (IMEA)

Packaging Information

• 5mm x 6mm (9.6m) – 30 reels
• 3mm x 9mm (15m) – 24 reels
• 1.5mm x 9mm (30m) – 24 reels
• 4mm bead (12m) – 30 reels
• 6mm bead (8m) – 24 reels
• 8mm bead (6m) – 20 reels
• 3mm x 19mm (15m) – 14 reels
• 3mm x 50mm (15m) – 6 reels
• 6mm x 50mm (5m) – 6 reels

Properties

Product Tolerance

Rectangular sections:

• Thickness: ±10%

Width:

• Up to 25mm: ±1mm
• 26mm to 100mm: ±2mm

Bead sections:

• Thickness: ±10%
• Width: ±10%

Performance Properties

	Value	Units	Test Method / Conditions
Density	1.6	g/cm³	HS Butyl Test Method 6
Dynamic Shear Strength	12	N/cm²	HS Butyl Test Method 15
Dynamic Shear Strength	30	N/cm²	HS Butyl Test Method 5
Nominal Service Temperature	-40 to 110	°C	-
Peel Strength (180° peel adhesion)	14	N/cm	HS Butyl Test Method 41
Peel Strength (90° peel adhesion)	7	N/cm	HS Butyl Test Method 48
Water Vapor Transmission Rate	0.15	g/m²/24h/mm	BS ISO 15106, ISO 9932

Application Properties

	Value	Units	Test Method / Conditions
Application Temperature	5 - 40	°C	-

Regulatory & Compliance

Certifications & Compliance

ISO 9001

Technical Approvals

 National Federation of Roofing Contractors (NFRC) Class A Performance – Third party certification by a UKAS accredited laboratory.
 

Storage & Handling

Storage Condition

24 months when stored flat in original packaging in cool, dry conditions.

Shelf Life

24 months