Wall Cladding System Components
Flexcrete WG (Winter Grade)
Flexible Polymer-Based Cementitious Base Coat & Water-Resistive Air Barrier
Technical Performance Features
Cold Temperature Applicatoin (0°C)
Coverage

10-12 m2 (107-130ft2) per pail/bag

NMS
09222
Product Description
Technical Performances
Documentation
Description

Flexcrete WG is a two component polymer based mortar consisting of a water based acrylic liquid component Flexcrete WG, mixed with the dry component Flexcrete “B”. The Flexcrete WG mix has been specially developed for applications during colder weather and be fully cured at temperatures as low as 0°C.

Advantages
  • Low temperature curing
  • Superior adhesion to various inorganic substrates
  • Combines the strength of cement and the flexibility of synthetics
  • Designed to allow minor movements in the substrate without causing cracking in the base coat
  • Allows for large surface areas to be coated without the need of unwanted control joints
Uses

Flexcrete WG has been formulated to obtain full cure at temperatures as low as 0°C, an ideal advantage during late fall / early winter and spring periods when temperatures during the night can drop. Flexcrete WG mix can be used as the base coat in Durex EIFS system applications (where applicable). This product is the most suitable cementitious joint treatment and base coat available for cement board and glass-mat coated gypsum substrates. Flexcrete WG may also be used as the insulation adhesive for all Durex EIFS Systems. In addition, Flexcrete WG functions as a water resistive (WRB) air barrier when applied at minimum thickness of 1.5 mm (1/16").

Physical Properties
 
Product type

Water based acrylic, sand-filled mixture

Appearance

White semi-solid ready mixed paste

Viscosity

Pourable paste

pH Level

9.0 to 9.5

Toxicity

Non-toxic

Coverage

Each pail/bag will provide approximately 10-12 m2 (107-130ft2)


Performance Properties
Method Results
Tensile strength

ASTM C190

  • 0.35 MPa (50 psi) without mesh
  • 16.55 MPa (2400 psi) with mesh
Elongation

ASTM D412

9.4%

Flexural strength

ASTM C293

8.28M MPa (1200 psi)

Air Leakage

ASTM E283

0.0022 L/s.m2  (0.004 cfm/ft2)@ 75Pa

Water Vapour Permeance
  • ASTM E96 Method A
  • ASTM E96 Method B
  • 400 ng/Pa.s.m2 (7.0 Perms)
  • 972 ng/Pa.s.m2 (17 Perms)
Impermeability to Water

CCMC 6.7

385.56 ng/Pa.s.m2 (6.74 perms) @ 25°C (77°F)

Coefficient of Water Absorption

CCMC 5.5.1

0.0007 Kg (m².s1/2)

Salt Spray Resistance

ASTM B117

Passed (300 hours)

Accelerated weathering

ASTM D822

Passed (2000 hours)

Freeze/Thaw Resistance

CCMC Method

Passed

Adhesion (axial pull)

ASTM D1623

                  Cement      Concrete    Glass Mat 

                   Board                               Gypsum    

Dry State   Pass              Pass             Pass          

2h- dry       Pass              Pass             Pass          

7 d- dry      Pass              Pass             Pass