Cafco SPRAYFILM® WB3

Water Based Intumescent Coating

Cafco SPRAYFILM® WB3 is a water based intumescent coating consisting of polyvinyl acetate resins and fillers for the fire protection of structural steel. It is preferably spray applied with airless paint equipment for speed and quality of finish. Brush and roller application is also possible.

Cafco SPRAYFILM® WB3 can be sealed and protected with a decorative top coat.

Cafco SPRAYFILM® WB3 is applied directly to the contour of primed I and H section columns, angles, channels and beams and both square and circular hollow sections, to provide fire protection for up to 120 minutes.

In a fire, a chemical reaction takes place causing the Cafco SPRAYFILM® WB3 to expand and form an insulating layer which slows the temperature of the steel rising to a critical level.

General technical properties
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TECHNICAL PROPERTIES

Fire resistance

Steel structures protected with Cafco SPRAYFILM® WB3 have undergone fire resistance tests up to 120 minutes in approved independent laboratories to recognised standards throughout the world, including:

  • Australia (AS 1530: Part 4: 2005)
  • UK (BS 476: Part 21: 1987)
  • Canada and USA (ASTM E84 and E119: 1998)

Fire resistance test results are assessed in accordance with ASFP “Fire protection for structural steel in buildings” procedures. If UL certification is required, please consult Promat.

Surface burning (ASTM E84: 1998) Flame spread 5, smoke development 35
AlkalinitypH 8.0 ± 0.2 at 25°C
Theoretical coverage Approximately 18.79m² per container at 0.7mm DFT
Practical coverage Dependent on surface texture, substrate, application method and technique.
Number of coats One or more as required
Maximum thickness (WFT) per coatmm 1.6 using spray 0.76 using brush For airless spraying, several thin coats as opposed to one heavy coat will give greater control over finish and thickness.
Cure By air drying
Initial set at 20°C, 50% RH and 0.4mm WFT Approximately 6 hours
Densitykg/litre 1.33
Solids by weight 70% ± 2%
Impact resistance (ASTM D2794: 1993-2010)kg/m 18
Durometer hardness (ASTM D2240: 2005-2010) 80 shore D
Abrasion resistance at 1000 cycles (ASTM D4060: 1995)g 0.6505
Colour and texture condition White with a flat matt finish

TECHNICAL PROPERTIES

Fire resistance

Steel structures protected with Cafco SPRAYFILM® WB3 have undergone fire resistance tests up to 120 minutes in approved independent laboratories to recognised standards throughout the world, including:

  • Australia (AS 1530: Part 4: 2005)
  • UK (BS 476: Part 21: 1987)
  • Canada and USA (ASTM E84 and E119: 1998)

Fire resistance test results are assessed in accordance with ASFP “Fire protection for structural steel in buildings” procedures. If UL certification is required, please consult Promat.

Surface burning (ASTM E84: 1998) Flame spread 5, smoke development 35
AlkalinitypH 8.0 ± 0.2 at 25°C
Theoretical coverage Approximately 18.79m² per container at 0.7mm DFT
Practical coverage Dependent on surface texture, substrate, application method and technique.
Number of coats One or more as required
Maximum thickness (WFT) per coatmm 1.6 using spray 0.76 using brush For airless spraying, several thin coats as opposed to one heavy coat will give greater control over finish and thickness.
Cure By air drying
Initial set at 20°C, 50% RH and 0.4mm WFT Approximately 6 hours
Densitykg/litre 1.33
Solids by weight 70% ± 2%
Impact resistance (ASTM D2794: 1993-2010)kg/m 18
Durometer hardness (ASTM D2240: 2005-2010) 80 shore D
Abrasion resistance at 1000 cycles (ASTM D4060: 1995)g 0.6505
Colour and texture condition White with a flat matt finish
Handling
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HANDLING

Packaging Storage Shelf life Environmental
25kg plastic pails
  • Indoors in dry conditions between 10°C and 38°C.
  • Protect from frost, excessive heat (above 45ºC) and strong radiant sunlight.
Maximum 10 months in original sealed containers Do not discharge into drains, watercourses or soil.

 

Cafco SPRAYFILM® WB3 is manufactured under a quality management system certified in accordance with ISO 9001: 2008. For complete UL listing to application of this product, please visit UL website at http://www.ul.com.

HANDLING

Packaging Storage Shelf life Environmental
25kg plastic pails
  • Indoors in dry conditions between 10°C and 38°C.
  • Protect from frost, excessive heat (above 45ºC) and strong radiant sunlight.
Maximum 10 months in original sealed containers Do not discharge into drains, watercourses or soil.

 

Cafco SPRAYFILM® WB3 is manufactured under a quality management system certified in accordance with ISO 9001: 2008. For complete UL listing to application of this product, please visit UL website at http://www.ul.com.

Health & Safety
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HEALTH & SAFETY

Guarantee adequate ventilation during work. Avoid contact with the eyes and skin and avoid inhalation of the dust by wearing appropriate personal protection gear (safety goggles, protective clothing and dust mask). For more information please check the material safety data sheet, available upon request.

 

WASTE DISPOSAL

Dispose of in compliance with all local and national regulations in the appropriate and approved manner. Do not discharge into drains, watercourses or soil.

HEALTH & SAFETY

Guarantee adequate ventilation during work. Avoid contact with the eyes and skin and avoid inhalation of the dust by wearing appropriate personal protection gear (safety goggles, protective clothing and dust mask). For more information please check the material safety data sheet, available upon request.

 

WASTE DISPOSAL

Dispose of in compliance with all local and national regulations in the appropriate and approved manner. Do not discharge into drains, watercourses or soil.

Documents
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Safety Data Sheets

Safety Data Sheets

Product Data Sheets

Product Data Sheets

Application & Technical Manual

Promat Asia Pacific Handbook

Safety Data Sheets

Safety Data Sheets

Product Data Sheets

Product Data Sheets

Application & Technical Manual

Promat Asia Pacific Handbook