Product Data Sheet Safety Data Sheet Show all documents
Sikaflex®-1c SL

Sikaflex®-1c SL

HIGH PERFORMANCE, SELF-LEVELING, ONE-PART POLYURETHANE SEALANT

Sikaflex®-1c SL is a single component, self-leveling, premium-grade polyurethane sealant with an accelerated curing capacity. Meets Federal Specification TT-S-00230C, Type I, Class A. Meets ASTM C-920, Type S, Grade P, Class 25, use T, M, A, G, I.

  • 1-component, no mixing
  • Self-leveling, pourable
  • Accelerated curing
  • Can be applied to green concrete 24 hours after pour
  • Can be applied to damp concrete 1 hour after getting wet
  • Extremely elastic
  • High durability
  • Resists aging, weathering
  • Excellent adhesion
  • Convenient, easy-to-use packaging
  • Jet fuel resistant
  • Water Immersion Applications
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sikaflex®-1c SL is used to seal horizontal expansion joints in concrete and cementitious slabs such as:
  • Sidewalks
  • Balconies
  • Pavements
  • Terraces
  • Warehouses
  • Factories
  • Civil Structures
  • Plazas
  • Pitch Pans
  • Canals and Water Treatment
 

Advantages

  • 1-component, no mixing
  • Self-leveling, pourable
  • Accelerated curing
  • Can be applied to green concrete 24 hours after pour
  • Can be applied to damp concrete 1 hour after getting wet
  • Extremely elastic
  • High durability
  • Resists aging, weathering
  • Excellent adhesion
  • Convenient, easy-to-use packaging
  • Jet fuel resistant
  • Water Immersion Applications

Packaging

10.1 fl. oz. moisture-proof composite cartridges, 24/case.
29 oz. moisture-proof composite cartridges,12/case.
5 gallon pails. (filled to 5 gal.)

50 gallon drums.

Color

Limestone

Product Details

Product Information

Shelf Life

10.1 oz. & 29 oz. cartridge: 1 year in original unopened packaging.
5 gallon pail & 50 gallon drum: 6 months in original unopened packaging.

Storage Conditions

Store at 40–95 °F (4–35 °C). Condition material to 65–75 °F before using.

Volatile organic compound (VOC) content

See Product Safety Data Sheet
Technical Information

Shore A Hardness

40 ± 5

(21 days at 73 °F (23 °C) and 50 % R.H.) (ASTM D-2240)

Tensile Strength

150 psi

(21 days at 73 °F (23 °C) and 50 % R.H.) (ASTM D-412)

Tensile stress at specified elongation

110 psi at 100 %

(21 days at 73 °F (23 °C) and 50 % R.H.) (ASTM D-412)

Elastic Recovery

>90 %

(73 °F (23 °C) and 50 % R.H.) (ASTM C-719)

Adhesion in peel

Substrate

Peel Strength

Adhesion loss

Concrete

> 28 lbs.

0 %

Aluminum> 30 lbs.0 %

Glass

> 37 lbs.

0 %

Movement Capability

±25 %

(73 °F (23 °C) and 50 % R.H.) (ASTM C-719)

Resistance to Weathering

Excellent

Service Temperature

-40 °F (-40 °C) to 170 °F (77 °C)

Application

Application Information

Ambient Air Temperature

40–100 °F. Sealant should be installed when joint is at mid-range of its anticipated movement.

Substrate Temperature

40–100 °F. Sealant should be installed when joint is at mid-range of its anticipated movement.

Curing Rate

Tack-free Time: 1 to 2 hours

Final Cure: 3 to 5 days

(73 °F (23 °C) and 50% R.H.) (ASTM C 679)
Consumption

Coverage

10.1 oz Cartridge: Yield in Linear feet

Width/Depth1/4''3/8''1/2''
1/4''24.3
3/8''16.210.8
1/2''12.18.16.1
3/4''8.15.44.0
1''3.0
1.25''2.4
1.5''2.0

29 oz Cartridge: Yield in Linear feet

Width/Depth1/4''3/8''1/2''
1/4''69.8
3/8''46.531.0
1/2''34.923.317.4
3/4''23.315.511.6
1''8.7
1.25''7.0
1.5''5.8

1 gallon: Yield in Linear feet

Width/Depth1/4''3/8''1/2''
1/4''307.9
3/8''205.3136.8
1/2''153.9102.677.0
3/4''102.668.451.3
1''38.5
1.25''30.8
1.5''25.7
Application steps

SUBSTRATE PREPARATION

Clean all surfaces. Joint walls must be sound, clean,dry, frost-free, and free of oil and grease. Curing compound residues and any other foreign matter must be thoroughly removed. A mechanically roughened surface will also enhance bond. Sikaflex®-1c SL can be applied in green concrete after the concrete has cured for a minimum of 24 hours at 75°F. (23°C). For green concrete applications in control joints the concrete must be cut 8 hours (min.) prior to sealant installation and in expansion joint the forms must be removed 6 hours (min.) prior to sealant installation. For wet concrete applications all excess or standing water must be displaced and concrete must then dry for a minimum of 60 min prior to sealant installation. Install bond breaker tape or backer rod to prevent bond at base of joint.  If sealant will be used in immersion service then priming is required - when using primer, green and damp concrete conditions should be avoided.

Documents