Product Data Sheet
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Sikadur®-55 SLV

Super low-viscosity, moisture-tolerant epoxy resin, crack healer/penetrating sealer

Sikadur®-55 SLV is a 2-component, 100 % solids, moisture-tolerant, epoxy crack healer / penetrating sealer, having a fast tack-free time to minimize downtime. It is a super low-viscosity, high-strength adhesive formulated specifically for sealing both dry and damp, existing, non-dynamic cracks. It conforms to the current ASTM C-881, Types I and II, Grade-1, Class-C* and AASHTO M-235 specifications. * except for gel time

  • Super low viscosity/low surface tension for excellent penetration into existing cracks.
  • Seals existing cracks by gravity down to 2 mils (0.002” / 0.05 mm) in width.
  • Prolongs life of cracked concrete.
  • Penetrates and seals surface from water absorption, chloride-ion intrusion, and chemical attack (patent pending technology).
  • Improves concrete surface by reducing water and chloride intrusion.
  • Can be open to traffic in 6 hours at 73 °F (23 °C).
  • High bond strength, even in damp cracks.
  • U.S. Patent No. (pending) for ultra low viscosity healer/sealer to strengthen cracked concrete.
Product Data Sheet
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Usage

  • Sikadur®-55 SLV seals cracked concrete.
  • For interior slabs and exterior above-grade slabs.
  • For elevated horizontal decks, parking garages and other structures exposed to foot and pneumatic tire traffic.
 

Advantages

  • Super low viscosity/low surface tension for excellent penetration into existing cracks.
  • Seals existing cracks by gravity down to 2 mils (0.002” / 0.05 mm) in width.
  • Prolongs life of cracked concrete.
  • Penetrates and seals surface from water absorption, chloride-ion intrusion, and chemical attack (patent pending technology).
  • Improves concrete surface by reducing water and chloride intrusion.
  • Can be open to traffic in 6 hours at 73 °F (23 °C).
  • High bond strength, even in damp cracks.
  • U.S. Patent No. (pending) for ultra low viscosity healer/sealer to strengthen cracked concrete.

Packaging

3 gal. (11.35 l) unit = ‘A’ = 2 gal. (7.6 l) + ‘B’ = 1 gal. (3.8 l)

Color

Clear, amber

Product Details

Product Information

Shelf Life

2 years in original, unopened containers

Storage Conditions

Store dry at 40–95 °F (4–35 °C).

Condition material to 65–75°F (18–24 °C) before using.

Viscosity

Approximately 105 cps
Technical Information

Compressive Strength

40°F (4°C)60°F (15°C)73°F (23°C)90°F (32°C)
1 day-

320 psi

(2.2 MPa)

1,100 psi

(7.6 MPa)

4,800 psi

(33.1 MPa)

3 days

2,000 psi

(13.8 MPa)

6,500 psi

(44.8 MPa)

8,300 psi

(57.2 MPa)

8,000 psi

(55.2 MPa)

7 days

7,800 psi 

(53.8 MPa)

10,400 psi

(71.7 MPa)

10,900 psi

(75.1 MPa)

8,300 psi

(57.2 MPa)

14 days

9,600 psi

(66.2 MPa)

11,000 psi

(75.8 MPa)

11,800 psi

(81.4 MPa)

10,000 psi

(68.9 MPa)

28 days

11,700 psi

(80.7 MPa)

12,000 psi

(82.7 MPa)

12,000 psi

(82.7 MPa)

10,000 psi

(68.9 MPa)

Flexural Strength

8,500 psi (58,6 MPa) (7 days)

(ASTM D-790)

73 °F (23 °C)
50 % R.H.

Modulus of Elasticity in Flexure

3.2 x 105 psi (2,206 MPa) (7 days)

(ASTM D-790)

73 °F (23 °C)
50 % R.H.

Tensile Strength

7,100 psi (48,9 MPa) (7 days)

(ASTM D-638)

73 °F (23 °C)
50 % R.H.

Tensile Adhesion Strength

Hardened Concrete to Hardened Concrete

2 day (moist cure)

2,500 psi (17.2 MPa)

14 day (moist cure)

2,500 psi (17.2 MPa)

Hardened Concrete to Steel

2 day (moist cure)

1,500 psi (10.3 MPa)

14 day (moist cure)

1,600 psi (11.0 MPa)




 

Shear Strength

5,800 psi (40.0 MPa) (7 days)

(ASTM D-732)

73 °F (23 °C)
50 % R.H.

Heat Deflection Temperature

[fiber stress loading = 264 psi (1.8 MPa) 110 °F (43 °C) (7 days)

(ASTM D-648)

Water Absorption

0.60 % (7 days, 24 hour immersion)

(ASTM D-570)

Application

Application Information

Mixing Ratio

Component ‘A’ : Component ‘B’ = 2:1 by volume

Pot Life

Approximately 20 minutes

Cure Time

Tack-Free Time

40 °F (4 °C)60 °F (15 °C)73 °F (23 °C)90 °F (32 °C)
> 11 h11 h6 h2.5 h
Consumption

Coverage

1 gal. (3.8 liters) yields 231 cu. in. (3,785 cm3)
Typical coverage is 150–175 ft2/gal. (3.7–4.3 m2/L) for surface sealing. Coverage varies with porosity and surface profile of substrate. Higher porosity concrete will reduce coverage. For crack healing, follow Application instructions and allow to pond over cracks.
Application steps

SUBSTRATE PREPARATION

Substrate must be clean, sound and free of surface moisture. Remove dust, laitance, grease, oils, curing compounds, waxes, impregnations, foreign particles, coatings and disintegrated materials by mechanical means (i.e. shot blasting, sandblasting, etc.). For best results, substrate should be dry. Surfaces prepared by Low Pressure Water Cleaning or High Pressure Water Jetting methods should be allowed to dry for 24 hrs. minimum [at 73 °F (23 °C)].

MIXING

Mix 1 part Component ‘B’ to 2 parts Component ‘A’ by volume into a clean pail. Mix thoroughly for 3 minutes with Sika paddle or jiffy mixer on a low-speed (400–600 rpm) drill until uniformly blended. Mix only that quantity which can be used within its pot life.

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