Sikalastic® Vehicular Traffic 2530

• CSA S413
• ASTM C 957

• Sikalastic® M 270 NP 
• Sikalastic®-350
• Sikalastic® TC 295

100% Solids

Allow curing time of 24 hours before vehicular and pedestrian use. Extend the curing time in cool-weather conditions.

Concrete

1. Concrete must be fully cured (28 days), structurally sound, clean and dry (ASTM D 4263). All concrete surfaces (new and old) must be shot blasted to remove previous coatings, laitance and all miscellaneous surface contamination and to provide profile for proper adhesion. Abrasive shot blasting must occur after concrete repair has taken place. Acid-etching is not permitted. Proper profile should be a minimum of ICRI CSP- 3 (as described in ICRI document 03732.) For balconies and other pedestrian areas with limited space or access for shot-blasting, alternative mechanical methods can be used to achieve the recommended surface profile. 

2. Repair voids and delaminated areas with Sika branded cementitious and epoxy patching materials. For application when fastturn repairs are required, Sikalastic®-350 can be used to repair patches up to 1.5" in depth when used in aggregate slurry mix. Please refer to the Sikalastic®-350 product Data sheet for proper application techniques. 

3. All units must be applied within the specified pot life.

Surface Pre-Striping and Detailing

1. For non-moving joints and cracks less than 1⁄16" (1.6 mm) wide, apply 25 wet mils (0.6 mm) prestriping of Sikalastic® M 270 NP. Sikalastic® M 270 NP must be applied to fill and overlap the joint or crack 3" (76 mm) on each side. Feather the edges.

2. Dynamic cracks and joints over 1⁄16" (1.6 mm) wide must be routed to a minimum of ¼ by ¼" (6 by 6 mm) and cleaned. Install bond breaker tape to prevent adhesion to bottom of joint. When required, prime all joint faces only with the appropiate Sika® Primer. Fill joints deeper than ¼" (6 mm) with appropriate backer rod and Sikaflex® SL 1™/ SL 2™ (slope grade or selfleveling) or Sikaflex® NP 1™/ NP 2™. For cracks, sealant should be flush with the adjacent surface. For expansion joints, sealant should be slightly concave. After the sealant has cured, apply 25–30 wet mils (0.64–0.77 mm) of Sikalastic® M 270 NP pre-stripping over the cured sealant, overlap the joint 3" (76 mm) on each side.

3. Sealed joints 1" (25 mm) wide or less can be coated over with the Sikalastic® Traffic system. Expansion joints exceeding 1" (25 mm) wide, including the primary wide expansion-joint system, are not to be coated so they can perform independently of the deck coating system.

4. Form a sealant cant into the corner at the junction of all horizontal and vertical surfaces (wall sections, curbs, columns) by priming with the appropiate Sika® Primer and applying a 1" (25 mm) wide bead of Sikaflex® NP 1™/ NP 2™. Tool to form a 45° cant. Apply masking tape to the vertical surfaces 4–5" (102–127 mm) above the sealant cant to provide a clean termination of the vertical detail coat. After the sealant has cured, apply 25 wet mils (0.64 mm) of Sikalastic® M 270 NP over the cured cant up to the masking tape and 4" (102 mm) onto deck surface. 

5. Where the coating system will be terminated and no wall, joint, or other appropriate break exists, cut a ¼ by ¼" (6 by 6 mm) keyway into the concrete. Fill and coat keyway during application of Sikalastic® M 270 NP.

6. In locations of high movement such as wall and slab intersections, a reinforcing fabric is required. After the sealant cant bead is applied 
and cured, apply 25 wet mils of Sikalastic® M 270 NP over the sealant and embed Sikalastic® Fleece-996 reinforcing fabric into the wet detail coat. 

Uncoated Metal Surfaces

1. Remove dust, debris and any other contaminants from vent, drain pipe and post penetrations, reglets and other metal surfaces. Clean surfaces to near white per SSPC-NACE2 and prime immediately with the appropiate Sika® Primer. Provide appropriate cant with Sikaflex® NP 1™/ NP 2™ sealants to eliminate 90° angles.

Please refer to the specific PDS for Mixing Instructions

Sikalastic® Vehicular Traffic 2530 can be installed in several configurations, depending upon the degree of traffic to which the system is exposed. In areas of extreme traffic (turning lanes, pay booths, entrances and exits), apply the Extra Heavy-Duty Traffic System. The following summary briefly describes each configuration. All coverage rates are approximate.

HEAVY DUTY TRAFFIC SYSTEM

1. Prime substrate if required, consult your Sika Representative

2.  Apply 25 wet mils of Sikalastic® M 270 NP with proper notched squeegee at the rate of 50–60 ft² / gal (1.2–1.5 m² /L). Allow basecoat to cure 3–4 hours minimum. Sikalastic®-350 must be applied to the cured Sikalastic® M 270 NP within 24 hours. 

3. Apply 20–25 wet mils of the mixed Sikalastic®-350 with proper notched squeegee at the rate of 60–80 ft² /gal (1.6–2.0 m² /L). Place the epoxy to permit a continuous operation by applying the second mix immediately behind the first mix. 

4. Immediately broadcast aggregate aggregate # 9 to complete saturation (approximately 1.1 lb/ ft²). If wet spots develop immediately broadcast additional aggregate until a dry surface is reestablished. On large areas, work small sections to ensure aggregate is applied before the membrane begins to skin over. 

5. Remove excess aggregate by sweeping, blowing, or vacuuming. 

6. Apply 15–20 wet mils of the mixed Sikalastic®-350 with proper notched squeegee at the 80–100 ft² /gal (0.4–0.5 m² /L). Place the epoxy to permit a continuous operation by applying the second mix immediately behind the first mix. As a possible option, steps 3 and 6 can be combined to apply a single epoxy topcoat at 35–40 wet mils. Contact your local Sika representative for assistance. 

7. Immediately broadcast Aggregate # 9 to complete saturation (approximately 1.1 lb/ ft²). If wet spots develop, immediately broadcast additional aggregate until a dry surface is reestablished. On large areas, work small sections to ensure aggregate is applied before the membrane begins to skin over. 

8. Allow a minimum cure time of 6 hrs at 70 °F (21 °C). for Sikalastic®-350 before allowing vehicular traffic.

9. For outdoor applications: Apply 20 wet mils of Sikalastic® TC 295 topcoat using a properly notched squeegee at the rate of approximately 55–75 ft² /gal. Immediately backroll to evenly level topcoat.

EXTRA HEAVY DUTY TRAFFIC SYSTEM

1. Prime substrate if required, consult your Sika Representative. 

2. Apply 25 wet mils of Sikalastic® M 270 NP with proper notched squeegee at the rate of 50–60 ft² /gal (1.2–1.5 m² /L). Allow basecoat to cure 3–4 hours minimum. Sikalastic®-350 must be applied to the fully cured Sikalastic® M 270 NP within 24 hours.

3. Apply 40 wet mils of the mixed Sikalastic®-350 topcoat with proper notched squeegee at the 35–40 ft² /gal (0.9–1.0 m² /L). Place the epoxy to permit a continuous operation by applying the second mix immediately behind the first mix. 

4. Immediately broadcast Aggregate # 9 to complete saturation (approximately 1.1 lb/ ft²). If wet spots develop, immediately broadcast additional aggregate until a dry surface is reestablished. On large areas, work small sections to ensure aggregate is applied before the membrane begins to skin over. 

5. Remove excess aggregate by sweeping, blowing or vacuuming. 

6. Apply 40 wet mils of the mixed Sikalastic®-350 topcoat with proper notched squeegee at the 35–40 ft² /gal (0.9–1.0 m² /L). Place the epoxy to permit a continuous operation by applying the second mix immediately behind the first mix. 

7. Immediately broadcast Aggregate # 9 to complete saturation (approximately 1.1 lb/ ft²). If wet spots develop, immediately broadcast additional aggregate until a dry surface is reestablished. On large areas, work small sections to ensure aggregate is applied before the membrane begins to skin over. 

8. Allow a minimum cure time of 6 hrs at 70 °F (21 °C) for Sikalastic®-350 before allowing vehicular traffic.

9. For outdoor applications: Apply 20 wet mils of Sikalastic® TC 295 topcoat using a properly notched squeegee at the rate of approximately 55–75 ft² /gal. Immediately backroll to evenly level topcoat.

As an option, an elastomeric polyurethane topcoat such as Sikalastic® TC 295 can be applied over the top of the Sikalastic®-350 to change the final appearance. The systems listed in this data guide can be altered by Sika to suit particular site conditions. Contact your local Sika representative for assistance.

IMPORTANT NOTE: 
All coverage rates are approximate and may vary due to texture, porosity of the substrate, size and type of aggregate used, temperature and application techniques used. In order to verify your coverage rates, a mockup is recommended.  Sikalastic®-350 is not designed to be used as a decorative system and will discolor over time when exposed to UV light. 

MOCKUP

1. Provide mockup of at least 100 ft² (9.3 m²) to include surface profile, sealant joint, crack, flashing and juncture details and allow for evaluation of slip resistance and appearance.

2. Install mockup with specified coating types and with other components noted.

3. Locate where directed by architect.

4. Mockup may remain as part of work if acceptable to architect.

Clean all tools and equipment immediately after use with SikaSwell® 990 or xylene. Cured material must be removed mechanically.