Sika

Sikaflex 1C SL - Flexible Self Leveling Polyurethane Sealant - 29oz; Full Case (12 Cartridges)-Limestone & AWF 2028 Heavy Duty Caulk Gun

Sikaflex 1C SL - Flexible Self Leveling Polyurethane Sealant - 29oz; Full Case (12 Cartridges)-Limestone & AWF 2028 Heavy Duty Caulk Gun

$256.79
  • SKU: KTSI LM29AWF2028 12
  • UPC: 033886003742
  • MPN: Sikaflex 1c SL
  • Availability: Same Day Shipping Applies Monday to Friday if Ordered by 2 PM EST.
  • Shipping: Free Shipping
Availability: Same Day Shipping Applies Monday to Friday if Ordered by 2 PM EST.
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Description

This ready-to-use professional sealant kit includes everything you need to achieve clean, consistent, and long-lasting horizontal joint seals in concrete and cementitious slabs. Featuring Sikaflex®-1c SL, a premium-grade, self-leveling polyurethane sealant, and the high-performance AWF PRO 18:1 Caulk Gun, this combo is engineered for pros who demand precision and durability. Whether you’re sealing sidewalks, driveways, plazas, or warehouse floors, this kit provides the power and control needed to tackle demanding applications with ease.

What's Included?

  • (12) Sikaflex®-1c SL – 29 oz Cartridge A high-performance, moisture-curing polyurethane sealant for horizontal joints
  • (1) AWF PRO 18:1 29 oz heavy-duty, smooth-action applicator built for medium- to high-viscosity materials

Features & Benefits

  • Self-Leveling: Pourable application ideal for flat, horizontal surfaces
  • One-Component: No mixing required; ready to use
  • Accelerated Curing: Tack-free in 1–2 hours, full cure in 3–5 days
  • Excellent Adhesion: Bonds to concrete, aluminum, glass, and more without primer (except immersion use)
  • Highly Elastic: 320% elongation at break with >90% recovery
  • Weather & Jet Fuel Resistant: Long-term performance in exposed and industrial environments
  • Green & Damp Concrete Compatible: Install on green concrete after 24 hrs or damp concrete after 1 hr
  • Paintable: Compatible with many coatings (adhesion testing recommended)
  • Meets Standards: ASTM C-920 & TT-S-00230C
  • Wide Service Range: -40°F to +170°F

Technical Data

Property Value
Shore A Hardness 40 ± 5 (ASTM D2240)
Tensile Strength 150 psi (ASTM D412)
Elongation at Break 320%
Movement Capability ±25% (ASTM C719)
Adhesion (Peel Strength) Concrete >28 lbs, Glass >37 lbs, Aluminum >30 lbs (0% loss)
Tack-Free Time 1–2 hours (ASTM C679)
Full Cure 3–5 days
Service Temperature Range -40°F to +170°F
Packaging Options 10.1 oz, 29 oz, 5 gal, 50 gal
Shelf Life 1 year (cartridges), 6 months (pail/drum)

Recommended Applications

Ideal for use in flat concrete surfaces and horizontal joints in areas where a self-leveling, long-life sealant is needed:

  • Sidewalks & walkways
  • Balconies & plazas
  • Parking structures
  • Pavements & driveways
  • Warehouses & industrial floors
  • Terraces & roof decks
  • Civil structures & water treatment facilities
  • Pitch pans, canals, and horizontal expansion joints

Common Substrates:

  • Concrete (new or green)
  • Cementitious slabs
  • Aluminum
  • Glass
  • Stone or tile (with proper prep)

Application Details

Surface Preparation

  • Surfaces must be clean, sound, dry or damp (no standing water)
  • Remove grease, curing compounds, and other contaminants
  • Install backer rod or bond breaker to control depth and prevent 3-point bonding
  • For green concrete: Wait 24 hrs after pour, control joints cut at least 8 hrs prior
  • For damp concrete: Wait 1 hour after water is removed
  • Primer is required for immersion service

Joint Design

  • Recommended ratio: 2:1 width to depth
  • Depth range: ¼" to ½"
  • Min. depth for traffic areas: ½"
  • Max. movement: ±25% of joint width

Application Conditions

  • Ambient/Substrate Temp: 40°F to 100°F
  • Precondition cartridges to ~70°F for best flow
  • Pour in one direction, allow sealant to level naturally
  • Tooling is minimal but can be used for finishing

Coverage

  • 10.1 oz cartridge: ~24.3 ft (¼" x ¼" joint)
  • 29 oz cartridge: ~69.8 ft (¼" x ¼" joint)