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BiYseal Bitumen Imp Foam

Biyseal Impregnated Foam PDF

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Description

Biyseal Polyurethane Impregnated Foam is a bitumen impregnated, light weight flexible foam, with a nominal density of 35kg per m³, manufactured to AS2282-79. Biyseal is also available impregnated with an acrylic solution for use when ultra-violet light resistance is required. Biyseal is supplied in 7.62m coils, 2m lengths and Profiles to suit various roof decking.

USES:

Biyseal is suited as a weather resistant seal for numerous applications in both building and construction and, industrial either on its own or in conjunction with a sealant depending on the application. Typical applications include:

  • Dust/vermin proofing of metal wall or roof cladding
  • Vertical expansion joints in precase concrete, brick and block work
  • Jointing between walls and windows
  • Profiled Biyseal for sealing various roof and wall decking
  • Joint sealing of logs in timber homes

HOW USED:

The surface which Biyseal is to be applied to should be clean, sound and clear of all loose materials. Size to be used is dependent on application: – Weather resistant joints – foam width equal to 5 times joint opening – Expansion joints – foam width equal to 3-4 times joint opening – Joint proofing – allow for a foam width equal to twice the joint opening

SIZES:

  • 7.6m coils & 2 metre lengths:
  • 19mmm x 13mm up to 100mm x 25mm

Profiles: to suit roof sheeting width

 

HOW TO SPECIFY:

All areas to be sealed must be filled with Biyseal Polyurethane Impregnated Foam strictly in accordance with manufacturers instructions. when all compression forces are removed is 90% in the first cycle.

PERFORMANCE DATA:

Compression:

  • Compression by 20% resistant to dust, draughts and tolerant to vibration.
  • Compression by 50% resistant to fog, light dampness, slight flowing water and tolerant to reverberation.
  • Compression by 70% resistant to flowing water and dust storms.
  • Compression by 75% resistant to standing water.

Aging:

Accelerated aging testing – Biyseal, when compressed can have a working life of up to 20 years, depending on application. Biyseal does not extrude when compressed.

Recovery:

Will sustain innumerable cycles of expansion and contraction without showing signs of fatigue or loss of recovery characteristics. The material can be compressed as much as 90% without rupture and will maintain its full recovery properties. The extent of elastic recovery when all compression forces are removed, is 98% in the first cycle.

Adhesion:

Biyseal when compressed, always exerts an outward pressure against the joint surface. Its performance is not dependent on adhesion, but it does adhere to the joint sides.

TECHNICAL DATA: UNIMPREGNATED FOAM

PROPERTYDATA
Density 30 Kg/m³
Identification Force
Deflection (I.F.D.) 25% N
65% n
200 + 22
360 + 27
Resilience % Min20
Tensile Strength Min Kpa172
Cell size (cell / inch)55 + 5
Elongation at break % of unstretched 2200 %
Tear strength minimum KN/M0.52
Compression set5.0

TECHNICAL DATA: BITUMEN IMPREG FOAM

PROPERTYDATA
Density 96 Kg/m³
- I.F. 25 194N
Tensile Strength 232kPa
Elongation 275 %
Tear Resistance903 N/m
Elongation after heat aging 225 %
Tear resistance after heat aging869 N/W
Shrinkage0.94 %
Combustibility test Flame did not reach
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