Product Data Sheet
Show all documents
SikaWall®-4090 Elastomeric Coating

SikaWall®-4090 Elastomeric Coating

100% acrylic-based smooth elastomeric coating

Factory-mixed, 100% acrylic-based smooth elastomeric coating that provides excellent flexibility and weatherability.

  • Bridges cracks with over 300% elongation
  • Enhances crack resistance
  • Resists wind-driven rain
  • Breathable to allow water vapor to escape
  • Flexibility at low temperatures makes it suitable for all climates
Product Data Sheet
Show all documents

Usage

Intended for use as a coating on exterior wall surfaces such as concrete, stucco, unit masonry or cementitious, acrylic and elastomeric textured finishes.  

Advantages

  • Bridges cracks with over 300% elongation
  • Enhances crack resistance
  • Resists wind-driven rain
  • Breathable to allow water vapor to escape
  • Flexibility at low temperatures makes it suitable for all climates

Packaging

5-gallon pail (19-liters) - 55 lbs (25 kg)

Color

Available in a wide variety of standard and custom colors.

Product Details

Product Information

Shelf Life

Two (2) years, when properly stored in original container.

Storage Conditions

  • Store in a cool, dry place protected from freezing, extreme heat and direct sun. Store at no less than 40°F (4°C).
  • Do not stack pallets.

Density

METHODCRITERIA RESULT

ASTM D1475

Report Value 

11.2-12.2 lbs/gal (1.34-1.46 kg/L)

Viscosity

ASTM D562 

Report Value 

127-135 KU

Volatile organic compound (VOC) content

ASTM D3960 (based in part on EPA method 24)         

Report Value 

<100 g/L (0.834 lbs/gal) less water and
exempt solvents
Technical Information

Substrate

  • Concrete
  • Stucco
  • Unit Masonry
  • Acrylic and Elastomeric Textured Finish 
  • Cementicious Finish 

Tensile Strength

METHODCRITERIA RESULT
ASTM D412

Report Value 

220 psi (1.5 MPa)

Elongation

Ultimate Elongation 

ASTM D412

 

Report Value 

 

344%

Elongation Recovery

ASTM D412

 

After 10 Minutes 
After 24 Hours

 

96.9%
98.4%

Tensile Adhesion Strength

ASTM D4541

Report Value 

210 psi (1.4 Mpa)

Crack Bridging Ability

PR EN1062-7

A. -77°F (-60°C)
B. 32°F (0°C)
C. 73°F (23°C)

A. 12 mils (0.3mm)
B. 19.5 mils (0.5mm)
C. 27.5 mils (0.7mm)

Resistance to Weathering

Dirt Pickup Resistance 

ASTM D3719

 

6 Months Exposure 

 

Pass - Dc = 94.33 (100 = Best Performance)

Behavior after Artificial Weathering

Accelerated Weathering

ASTM G23 - Type D

 

5000 Hours

 

Pass

Permeability to Water Vapor

ASTM D1653

Report Value 

12 Perms (16 mils DFT)

Freeze-Thaw Stability

ASTM C67

60 Cycles

Pass

Color

Visual Color Change

ASTM D1729

 

5000 Hours

 

Pass

Chalking

ASTM D4214

 

5000 Hours

 

Pass

Salt spray resistance

ASTM B117

300 Hours

Pass

Low Temperature Bend

ASTM D522

Mandrel Bend at -30°F (-34°C)

Pass - 1/8 inch (3mm) mandrel, no cracking

Application

Application Information

Ambient Air Temperature

  • When temperatures less than 40°F (4.5°C) prevail, provide supplementary heat during installation and drying period for at least 24 hours after installation and until dry.
  • Do not apply in ambient temperature above 100°F (38°C) or surface temperature above 120°F (49°C).

Drying Time

Under average conditions 70 °F (21 °C), 50% Relative Humidity

  • Coating will typically be dry in 24 hours.
  • Drying time is dependent on humidity, air temperature, sun exposure, surface conditions and film thickness. Lower temperature, higher humidity and application in shaded areas will extend drying time.
  • Protect coating from rain or other precipitation and temperatures less than 40°F (4.5°C) for a minimum of 24 hours and until dry.
Consumption

Coverage

At 32 mils wet (16 dry) - 250 ft²/pail (23m²)

Coverage may vary depending on the texture, porosity and color of the existing substrate.

Two coats are recommended to obtain the maximum elastomeric properties and for substrates with a moderate texture.

Documents