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Colas H4 Joint sealant 25KG

Colas H4 Joint sealant 25KG
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H4 is a hot poured joint sealant designed for the treatment of reinstatements and asphalt overlays.

Where to use?

  • Transverse or longitudinal vertical joints
  • Patch repairs
  • Trench reinstatements
  • Drain or manhole frames
  • Kerb channels

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What is it?

H4 is a hot poured joint sealant designed for the treatment of reinstatements and asphalt overlays.

Where to use?

  • Transverse or longitudinal vertical joints
  • Patch repairs
  • Trench reinstatements
  • Drain or manhole frames
  • Kerb channels

Preparation

Ensure that the joints to be sealed are clean and free from dust, fuel and oil spillage. The face of the joints should be dry with a surface temperature ideally of at least 10°C. Do not apply to icy surfaces or in rain.

N.B: If joint has to be treated in damp conditions, use Colas RS Bitukold - a pourable, cold applied edge sealant.

Application

H4 must be heated before use. For best results, use a heating kettle with an indirect heating system such as hot oil. Ensure that H4 doesn't exceed 180°C and that the oil does not exceed 240°C. When hot, pour either from a watering can or direct from the melting kettle via a pressure fed heated hose with a special nozzle. The 25kg tin pails are not suitable for placing on or over direct heat (i.e. gas or wood fire).

For a 40mm vertical joint face and a 2mm coated thickness of H4: 0.08kg of H4 seals approximately one linear metre of joint or a 25kg pack seals approximately 300 linear metres of joint.

Storage

Keep free from frost and extremes of heat. Do not stack. Do not store in direct sunlight.

Standards

H4 is a 40/60 penetration bitumen that complies with BS 594987 clause 6.8 Joints, vertical face coating. H4 is suitable for jointing as required in Clause 903 of the Specification for Highway Works.

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