SIKA PRODUCTS
Sika Boom®-140 Multi-purpose expansive polyurethane foam
Sika Boom®-140 Multi-purpose expansive polyurethane foam

 

Sika Boom®-140 Multi-purpose expansive polyurethane foam

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Sikaflex®-140 Construction

Elastic joint sealant for concrete and masonry facades

Sikaflex®-140 Construction is a 1-part, polyurethane elastic joint sealant. It is used for durably sealing connection and movement joints in concrete and masonry facades and also as general purpose construction sealant.

  •  Easy to extrude and tool
  •  Movement capability of ± 25 % (ASTM C 719)
  •  Good adhesion to many construction materials

Usage

The Product is used for sealing and weatherproofing joints in the building envelope where reliability and durability is required. The Product is used for the following application areas:
  • Interior or exterior joint sealing
  • Around window and door frames
  • Around precast elements
  • Around prefabricated elements
  • Floor and wall construction joints
 

Advantages

  • Easy to extrude and tool
  • Movement capability of ± 25 % (ASTM C 719)
  • Good adhesion to many construction materials
  • Bubble-free curing

Packaging

600 ml foil pack

20 foil packs per box

Colour

  • White
  • Black
  • Grey

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • Contributes towards satisfying Indoor Environmental Quality (EQ) Credit: Low-Emitting Materials under LEED® v4

CERTIFICATES AND TEST REPORTS

  • Joint Classification, ASTM C920, Class 25, Sikaflex®-140 Construction

Product Information
 
Technical Information

Application

Application Information

Backing Material

Use closed cell, polyethylene foam backing rod.

Sag Flow

20 mm profile tested at +50 °C

2 mm

Product Temperature

Maximum

+40 °C

Minimum

+5 °C

Ambient Air Temperature

Maximum

+40 °C

Minimum

+5 °C

Substrate Temperature

Maximum

+40 °C

Minimum

+5 °C

Beware of condensation. Substrate temperature during application must be at least +3 °C above dew point.

Curing Rate

At +23 °C and 50 % R.H.

2 mm / 24 hours

Skin Time

At +23 °C and 50 % R.H.

120 minutes

Tooling Time

At +23 °C and 50 % R.H.

100 minutes

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