HS Butyl 0303 is a general-purpose butyl tape used for sealing applications. It is suitable for caravans and joints, offering excellent adhesion to multiple substrates. The tape is conformable, easy to use, and designed as a ready-to-use product for various sealing needs.

Product Type: Tape

Application Area: Caravans, Eaves, Flange Joints, Joints, Ridge Tiles

Features: Conformable, Ease Of Use, Excellent Multi-Substrate Adhesion, Flexible, General Purpose, Good UV Resistance

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Features
  • Good adhesion to a wide range of substrates.
  • Good UV resistance.
  • Highly conformable.
  • Easy and accurate to use with little waste and no mess.
  • Remains flexible throughout its service life.

Applications & Uses

Markets
Applications
Application Area
Application Instructions

Surface preparation:

  • All surfaces should be clean, dry, and free from frost, grease, and loose materials.
  • When cleaning contaminated substrates, HS Butyl recommends using propan-2-ol (IPA) and allowing it to dry before applying the butyl tape.

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 butyl tape, and push firmly to seal across the joint.
  • When applying from drums, use a drum pump heated to 140-160°C, for good flow, a gear pump is the best solution.
Product Application
  • For sealing lap joints in roofing and cladding systems.
  • For sound deadening applications, particularly in vehicle construction.
  • For use as an air, dust, or water seal for compression joints and seams.
  • For use as a water seal in various caravan construction applications.
  • For sealing duct flanges in HVAC systems.

Properties

Performance Properties
ValueUnitsTest Method / Conditions
Dynamic Tensile Adhesion40N/cm²H5
Dynamic Shear Adhesion12N/cm²H15
90° Peel Adhesion7N/cmH48
180° Peel Adhesion8N/cmH41
Moisture Vapour Transmission Rate0.17g/m²/24hr/mmISO 9932 / BS ISO 15106
Service Temperature Range-40 to +90°C-
Short Term Temperature Range120°C-
Application Properties
ValueUnitsTest Method / Conditions
Application Temperature Range5 - 40°C-
Product Tolerance

Rectangular sections:

Thickness: ±10%

Width:

  • Up to 25mm: ±1mm
  • 26mm to 100mm: ±2mm
  • Over 100mm: ±3mm

Bead sections:

  • Thickness: ±10%
  • Width: ±10%

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Packaging Information

HS Butyl 0303 is normally supplied as an extruded strip on a siliconised release paper. A wide range of dimensions can be supplied. HS Butyl 0303 dimensions will determine the number of rolls per carton.

Storage & Handling

Shelf Life
24 months
Storage Condition

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