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Product Details for "Stef Premium II, Stef Premium Drainscreen, Stef Green, Stef Green Plus and Stef Impermea"
System

System Components

Intended Substrate

Insulation

WRBFootnote (1)

Mechanical FastenersFootnote (2), Footnote (3)

Adhesive

Base CoatFootnote (4), Footnote (5)

Primer

Finish Coat

Stef Premium II

  • plywood/OSB
  • concrete
  • masonry
  • glass-mat-surfaced gypsum sheathing
  • cement board

Stef Flat Insulation Board

modified bituminous membrane

Wind-Lock/Wind-Devil 2

Stef Base Coat

Stef Roll-On

Stef Finish

Stef Premium Drainscreen

  • plywood/OSB,
  • concrete
  • masonry
  • glass-mat-surfaced gypsum sheathing
  • cement board

Stef GD Drainage Board

modified bituminous membrane

Wind-Lock/Wind-Devil 2

Stef Base Coat

Stef Roll-On

Stef Finish

Stef Impermea

  • plywood/OSB
  • concrete
  • masonry
  • glass-mat-surfaced gypsum sheathing
  • cement board

Stef GD Drainage Board

Stef-Tek

  • Stef-Tek
  • Stef Prep Coat

Stef Prep Coat

Stef Roll-On

Stef Architectural Coat

Stef Green

  • concrete
  • masonry
  • glass-mat-surfaced gypsum sheathing
  • cement board

Stef Flat Insulation Board

  • Stef Barrier Plus
  • Stef-Tek

Stef Prep Coat

Stef Prep Coat

Stef Roll-On

Stef Architectural Coat

Stef Green Plus

  • concrete
  • masonry
  • glass-mat-surfaced gypsum sheathing
  • cement board

Stef GD Drainage Board

  • Stef Barrier Plus
  • Stef-Tek

Stef Prep Coat

Stef Prep Coat

Stef Roll-On

Stef Architectural Coat

Results of Testing of Ash Content of the Products

Property

Product

Unit

Requirement

Result

Ash content

Stef-Tek

%

Report value

40.50

Stef Barrier Plus

%

Report value

66.67

Stef Barrier Plus + CementFootnote (1)

%

Report value

88.03

Stef Prep Coat

%

Report value

52.69

Stef Prep Coat + CementFootnote (1)

%

Report value

92.7

Stef Architectural Coat

%

Report value

89.20

Stef Base Coat

%

Report value

87.16

Stef Base Coat + CementFootnote (1)

%

Report value

94.28

Stef Finish

%

Report value

67.13

Results of Testing of Infrared Analysis of the Products

Property

Product

Requirement

Result

Infrared analysis

Stef-Tek

Report value

Report on file

Stef Barrier Plus

Report value

Report on file

Stef Prep Coat

Report value

Report on file

Stef Architectural Coat

Report value

Report on file

Stef Base Coat

Report value

Report on file

Stef Finish

Report value

Report on file

Results of Testing of Adhesion Bond of WRB to Substrates other than Plywood/OSB

Property

Product

Unit

Requirement

Result

Adhesion bond (WRB to substrates other than plywood/OSB)

Stef Barrier Plus to cement board

dry state

MPa

≥ 0.25

0.72

2-h drying

MPa

≥ 0.8

0.48

7-d drying

MPa

≥ 0.25

0.58

Stef Barrier Plus to DensGlass

dry state

MPa

≥ 0.25

0.3

2-h drying

MPa

≥ 0.08

0.1

7-d drying

MPa

≥ 0.25

0.36

Stef-Tek to concrete

dry state

MPa

≥ 0.25

0.48

2-h drying

MPa

≥ 0.08

0.52

7-d drying

MPa

≥ 0.25

0.54

Stef-Tek to DensGlass

dry state

MPa

≥ 0.25

0.36

2-h drying

MPa

≥ 0.08

0.18

7-d drying

MPa

≥ 0.25

0.33

Results of Testing of Adhesion Bond of Adhesive to WRB

Property

Product

Unit

Requirement

Result

Adhesion bond (Adhesive to WRB)

Stef Barrier Plus to Stef Prep Coat

dry state

MPa

No detachment at bonding plane @

≥ 0.25

1.08

2-h drying

MPa

No detachment at bonding plane @

≥ 0.08

0.41

7-d drying

MPa

No detachment at bonding plane @

≥ 0.25

1.02

Results of Testing of Lamina Bond Strength

Property

Product

Unit

Requirement

Result

Adhesion bond (lamina)

Stef Prep Coat to insulation

dry state

MPa

No detachment at bonding plane @

≥ 0.25

0.39

2-h drying

MPa

No detachment at bonding plane @

≥ 0.08

0.19

7-d drying

MPa

No detachment at bonding plane @

≥ 0.25

0.28

Stef Prep Coat to Stef Architectural Coat

dry state

MPa

No detachment at bonding plane @

≥ 0.25

0.43

2-h drying

MPa

No detachment at bonding plane @

≥ 0.08

0.18

7-d drying

MPa

No detachment at bonding plane @

≥ 0.25

0.39

Stef Base Coat to Stef Finish

dry state

MPa

No detachment at bonding plane @

≥ 0.25

0.16

2-h drying

MPa

No detachment at bonding plane @

≥ 0.08

0.18

7-d drying

MPa

No detachment at bonding plane @

≥ 0.25

0.20

Results of Testing of Water Vapour Permeance (WVP) of Lamina

Property

System Component

Unit

Requirement

Result

Water vapour transmission

Stef Barrier PlusFootnote (1)

ng/(Pa·s·m2)

Report value

561

Stef Base CoatFootnote (1)

ng/(Pa·s·m2)

Report value

125

Stef FinishFootnote (2)

ng/(Pa·s·m2)

Report value

78

Stef Prep CoatFootnote (1)

ng/(Pa·s·m2)

Report value

166

Results of Testing of Water Absorption

Property

Unit

Requirement

Result

Water absorption

Stef Base Coat

%

≤ 20 of the dry weight

11.6

Stef Prep Coat

%

≤ 20 of the dry weight

14

Stef Prep Coat + Stef Architectural Finish

%

≤ 20 of the dry weight

11.8

Results of Testing of Water Absorption Coefficient of WRB

Property

Product

Unit

Requirement

Result

Water absorption  coefficient of WRB

Stef Barrier Plus @ 72 h

kg/(m2.s1/2)

≤ 0.004

0.0035

Results of Testing for Impermeability to Water

Property

Unit

Requirement

Result

Impermeability to water

Stef Base Coat

h

No water penetration in less than 2 h

Pass

Stef Base Coat + Stef Finish

h

No water penetration in less than 2 h

Pass

Stef Prep Coat

h

No water penetration in less than 2 h

Pass

Stef Prep Coat + Stef Architectural Finish

h

No water penetration in less than 2 h

Pass

Results of Testing of Accelerated Weathering Resistance of the Products

Property

System Component

Requirement

Result

Accelerated weathering resistance @ 2000 hours

Stef Base Coat and Stef Finish

No cracking, flaking or deleterious effects

Pass

Stef Prep Coat + Stef Architectural Finish

No cracking, flaking or deleterious effects

Pass

Results of Testing of Salt Spray Resistance of the Products

Property

System Component

Requirement

Result

Salt spray resistance @ 300 hours

Stef Base Coat and Stef Finish

No water penetration in less than 2 h

Pass

Stef Prep Coat + Stef Architectural Finish

No water penetration in less than 2 h

Pass

Results of Testing for Mildew and Fungus Resistance

Property

Unit

Requirement

Result

Mildew and fungus resistance

Stef Architectural Coat

-

No growth

Pass

Stef Finish

-

No growth

Pass

Results of Testing of Durability Under Environmental Cycling Conditions of the Products

Property

System

Unit

Requirement

Result

Preconditioning (drainage evaluation)

Stef Premium Drainscreen

L

Report water quantity

introduced

13.5

Preconditioning (drainage evaluation)

Stef Premium Drainscreen

L

Report water quantity

drained

12.9

Preconditioning (drainage evaluation)

Stef Premium Drainscreen

L

Report water quantity

retained

0.6

Environmental cycling (60 cycles)

Stef Premium Drainscreen

No cracking, blistering or sagging of base coat, and no detachment or crazing of finish coat

Pass

Adhesion bond strength after environmental cycling(base coat)

Stef Premium Drainscreen

MPa

≥ 0.08

0.32

Adhesion bond strength after environmental cycling(finish coat)

Stef Premium Drainscreen

MPa

≥ 0.08

0.32

Preconditioning (drainage evaluation)

Stef Green

L

Report water quantity

introduced

13.5

Preconditioning (drainage evaluation)

Stef Green

L

Report water quantity

drained

8.20

Preconditioning (drainage evaluation)

Stef Green

L

Report water quantity

retained

5.30

Environmental cycling (60 cycles)

Stef Green

-

No cracking, blistering or sagging of base coat, and no detachment or crazing of finish coat

Pass

Adhesion bond strength after environmental cycling (base coat)

Stef Green

MPa

≥ 0.08

0.34

Adhesion bond strength after environmental cycling (finish coat)

Stef Green

MPa

≥ 0.08

0.38

Results of Testing of Breaking Strength Resistance of Reinforcement Mesh

Property

Mesh Manufacturer

Unit

Requirement

Result

Weft

Warp

Initial strength

Saint-Gobain ADFORS

N/mm

≥ 35

68

50

Loss of strength after

30-d soak

%

≤ 60 for adhered EIFS ≤ 50 for mechanically fastened EIFS

29

28

60-d soak

38

28

90-d soak

46

26

Residual strength after

30-d soak

N/mm

≥ 15 for adhered EIFS ≥ 25 for mechanically fastened EIFS

48

36

60-d soak

42

36

90-d soak

37

37

Initial strength

Technical Textiles S.R.O.

N/mm

≥35

57

38

Loss of strength after

30-d soak

%

≤ 60 for adhered EIFS ≤ 50 for mechanically fastened EIFS

29

44

60-d soak

36

56

90-d soak

35

53

Residual strength after

30-d soak

N/mm

≥ 15 for adhered EIFS ≥ 25 for mechanically fastened EIFS

41

21

60-d soak

37

17

90-d soak

37

18

Results of Testing of Impact Resistance
Product

Unit

Requirement

Result

Extra Standard,Footnote (1) min. 200 g/m2 mesh

10 joules

J

Six of 10 free-fall drops must show no failure No perforation (broken mesh) No cracks

8/10 Pass

Extra Standard,Footnote (1) min. 200 g/m2 mesh

3 joules

J

7/10 Pass

Technical Textiles S.R.O., min. 150g/m2 meshFootnote (2)

10 joules

J

7/10 Pass

Technical Textiles S.R.O., min. 150g/m2 meshFootnote (2)

3 joules

J

7/10 Pass

Results of Testing of Wind Load Resistance of the ProductsFootnote (1)

Reference Wind Pressure (kPa)

Sustained P1, P'1 (Pa)

Cycling P2, P'2 (Pa)

Gust P3, P'3 (Pa)

Deflection Test Test Pressure (Pa) 2.18 P1, P'1

Deflection Test Measured Maximum Net Midspan Deflections (mm) Stud Height 3 050 mm

Deflection Test Measured Maximum Net Midspan Deflections (mm) Sheathing Span 406 mm

Q50 < 0.45

±450

Pass

±660

Pass

±980

Pass

+980

6.4

0.6

−980

−6.2

−0.8

Q50 < 0.55

±550

Pass

±800

Pass

±1 200

Pass

+1 200

7.9

0.8

−1 200

−7.6

−1.0

Q50 < 65

±650

Pass

±950

Pass

±1 410

Pass

+1 410

9.4

1.0

−1 410

−9.0

−1.3

Q50 < 75

±750

Pass

±1 090

Pass

±1 630

Pass

+1 630

11.0

1.2

−1 630

−10.4

−1.6

Q50 < 85

±850

Pass

±1 240

Pass

±1 850

Pass

+1850

12.6

1.5

−1850

−11.9

−2.0

Q50 < 1.00

±1 000

Pass

±1 460

Pass

±2 180

Pass

+2180

15.2

2.0

−2180

−14.3

−2.7

Maximum test pressure @ L/180 deflection (no structural failure)

+2 480

16.9

Not applicable

Results of Testing of Wind Load Resistance of the ProductsFootnote (1)

Reference Wind Pressure (kPa)

Sustained P1, P'1 (Pa)

Cycling P2, P'2 (Pa)

Gust P3, P'3 (Pa)

Deflection Test Test Pressure (Pa) 2.18 P1, P'1

Deflection Test Measured Maximum Net Mid-span Deflections (mm) Stud Height 3 050 mm

Deflection Test Measured Maximum Net Mid-span Deflections (mm) Sheathing Span 406 mm

Q50 < 0.45

±450

Pass

±660

Pass

±980

Pass

+980

5.2

1.4

−980

−6.0

−1.4

Q50 < 0.55

±550

Pass

±800

Pass

±1 200

Pass

+1 200

6.4

1.7

−1 200

−7.3

−1.7

Q50 < 0.60

±650

Pass

±950

Pass

±1 410

Pass

+1 410

7.5

2.0

−1 410

−8.6

−2.0

Q50 < 0.75

±750

Pass

±1 090

Pass

±1 630

Pass

+1 630

8.6

2.3

−1 630

−9.9

−2.3

Q50 < 0.85

±850

Pass

±1 240

Pass

±1 850

Pass

+1 850

9.8

2.6

−1 850

−11.3

−2.6

Q50 < 1.00

±1 000

Pass

±1 460

Pass

±2 180

Pass

+2 180

11.6

3.1

−2 180

−13.3

−3.1

Maximum test pressure @ L/180 deflection

+3 187

16.9

16.9

−2 770

Ultimate structural test pressure

+3 250

OK

OK

−3 215

Sheathing separation from steel studs occurred

Sheathing separation from steel studs occurred

Results of Testing of Adhesion of WRB to Plywood/OSB Substrates for "Stef-Tek"

Property

Unit

Requirement (No Detachment at Bonding Plane @)

Result

Adhesion bond to OSB

dry state

MPa

0.3

0.40

1-h soak

MPa

0.3

0.38

24-hr soak

MPa

0.3

0.34

Adhesion bond to plywood

dry state

MPa

0.3

0.43

1-h soak

MPa

0.3

0.70

24-hs soak

MPa

0.3

0.59

Results of Testing of Joint Disruption Resistance

Property

Unit

Requirement

Result Joint Width 2 mm

Result Joint Width 4 mm

Joint disruption resistance

The WRB at joints on two assemblies must show no cracking, delaminating or any other deleterious effects at a transverse bending of L/180.

Pass

Pass

Joint extension @ L/180

mm

Report value

0.11

0.15

Results of Testing of Joint Relaxation Resistance

Property

Unit

Requirement

Result

Joint relaxation resistance

kg/m2·s

Five WRB-coated OSB specimens subject to a 1.3-mm extension following exposure to 15 24-h environmental cycles must have a maximum average Water Transmission Resistance (WTR) rate of 2 × 10−7 kg/m2·s.

Sample No. 1

1.58 × 10−7

Sample No. 2

1.44 × 10−7

Sample No. 3

1.28 × 10−7

Sample No. 4

1.40 × 10−7

Sample No. 5

1.88 × 10−7

Results of Testing of Water Transmission Resistance (WTR)

Property

Unit

Requirement

Result

WTR

kg/m2·s

Five WRB-coated OSB specimens subjected to a 25-mm head of water must have a maximum average WTR rate of 2 × 10−7 kg/m2·s measured at 10 days

Sample No. 1

1.58 × 10−7

Sample No. 2

1.44 × 10−7

Sample No. 3

1.28 × 10−7

Sample No. 4

1.40 × 10−7

Sample No. 5

1.88 × 10−7

Average

1.52 × 10−7

Results of Testing for Water Vapour Transmission (WVT)

Property

Unit

Requirement

Result

Sample No.

Coated

Uncoated

WVT

ng/(Pa·s·m2)

Report value of the WVT rate of the WRB in combination with the OSB applied at the maximum thickness and the OSB alone

1

8

85

2

26

111

3

19

94

Average

17.7

96.7Footnote (1)

Results of Testing of Accelerated Weathering Resistance of WRB

Property

Requirement

Result

Accelerated weathering resistance

The WRB applied over OSB must show no cracking, delamination, flaking or any deleterious effects following 250 hours of exposure to a Xenon arc.

Pass

Results of Testing of Nail Popping Resistance

Property

Requirement

Sample No.

Result

Nail popping resistance

There must be no cracking or delamination of the WRB following a 1-mm nail protrusion from the nail’s original preset of 1 mm below the surface of the OSB substrate.

1

Pass

2

Pass

3

Pass

4

Pass

5

Pass

6

Pass

Results of Testing of Drainage Capacity of the Products

Property

Requirement

Test Specimen

Result

Retained water

After 1 h

After 48 h

Result

Drainage capacity

The unit-retainedFootnote (1) water following periods of 1 h and 48 h of drainage must not be greater than 30 g/m2 and 15 g/m2, respectively, for any single test specimen. The drainage capacity must not be less than 98% of the water mass delivered into the wall specimen.

Panel 1

total (g)

28.8

11.2

Pass

per unit area (g/m2)

22.1

8.6

Pass

drainage capacity (%)

99.7

99.7

Pass

Panel 2

total (g)

21.6

3.4

Pass

per unit area (g/m2)

16.6

2.6

Pass

drainage capacity (%)

99.8

99.8

Pass

Panel 3

total (g)

15.7

0.0

Pass

per unit area (g/m2)

12.1

0.0

Pass

drainage capacity (%)

99.8

99.8

Pass