Sikagard® CRV-20

6 months in original, undamaged and unopened packaging.

Store dry in heated area and off ground on pallets or similar. Protect Sikagard CRV 10 from freezing. If frozen, discard.

≤ 100 g/l

Barcol: 40

17,985 psi

Flexural Modulus: 551,150 psi

10,150 psi

Tensile Modulus: 510,500 psi

Before applying for protection against specific chemical environments, consult Sikagard CRV 20 Chemical Resistance Guide or contact Sika Technical Services at 800-933-SIKA (7452).

284°F

200 g (7.05 oz)

"A+B" Mixed: 12 mins

(Vinyl Ester Resin + Benzoyl Peroxide Powder)

Tack-free Time: 30 -40 mins
Traffic exposure: 4 hrs
Chemical exposure:  24 hrs

Yield

Smoothing Coating

Maximum build per coat for Sikagard CRV 20 on vertical surfaces: 10 mils wft. Three coats may be required for the smooth coating to be produced vertically.

Broadcast Build-Up System

The material is supplied as two-components, Part R and catalyst powder. Thoroughly stir Component R to ensure all solids, including pigments, are evenly dispersed. While stirring, periodically check interior of can with stir spatula or similar to again ensure dispersal and distribution of solids throughout resin. Add catalyst powder to pre-mixed Component R and thoroughly mix for 1 minute with a low-speed drill (200-300 rpm) to minimize air entrapment. Use an Exomixer type mixing paddle (recommended model) of suitable size for the mixing vessel. During the mixing operations scrape down the sides and bottom of the container with a flat or straight edge trowel at least once to ensure complete mixing. When completely mixed, Sikagard CRV 20 should be uniform in color and consistency. Mix full units only.

Concrete Substrates: Smooth coating: This provides a smooth, easy maintenance system. Primer coat: Apply Sikagard WDE Primer onto concrete substrates using a brush, roller or squeegee to a uniform coverage without ponding. Allow primer to cure for a minimum of 6 hours at 20°C (68°F) or 10 hours at 10°C (50°F) before over coating with Sikagard CRV 20. 1st coat: Once the Sikagard WDE Primer has cured apply Sikagard CRV 20 using a brush, roller or squeegee to a uniform coverage without ponding. 2nd coat: Once 1st Coat is tack free apply a second coat of Sikagard CRV 20 using a brush, roller or squeegee to a uniform coverage without ponding.
NOTE : If over coating of Sikagard WDE Primer with Sikagard CRV 20 is attempted before the necessary curing time has elapsed, the reactive components in the Sikagard CRV 20 will act as a solvent, softening the Sikagard WDE Primer, causing retardation or stopping the cure of the Sikagard CRV 20. For additional information see Sika Technical Bulletin Sikagard CRV 20 and CRV 20 - Properties and Application Guidelines. Broadcast build- up system: This provides a durable and slip resistant textured finish. Primer coat: Apply Sikagard WDE Primer onto concrete substrates using a brush, roller or squeegee to a uniform coverage without ponding. Broadcast the selected aggregate (selected for texture) into the wet primer to rejection. Broadcast coat: Once the primer coat has sufficiently cured to allow foot traffic, sweep-up and vacuum the loose unbonded aggregate. Apply the broadcast coat of Sikagard CRV 20 using a notched squeegee or trowel and backroll to a uniform coverage. Broadcast the selected aggregate (selected for texture) into the wet resin to rejection. Top coat: Once the broadcast coat has sufficiently cured to allow foot traffic, sweep-up and vacuum the loose unbonded aggregate. Apply the top coat of Sikagard CRV 20 using a squeegee, followed by back rolling to provide a uniform texture and finish.

Caution:

COMPONENT A: DANGER: FLAMMABLE, IRRITANT. Contains Styrene (CAS:100-42-5 ). Keep away from heat, sparks, sunlight, electrical equipment, flame or other sources of ignition. VAPORS MAY IGNITE AND EXPLODE. DO NOT SMOKE. Use only in well ventilated areas. Open doors and windows during use. Eye/skin/respiratory irritant. Inhalation can result in headaches and dizziness. Harmful if swallowed. Intentional misuse by deliberate concentration and inhalation of vapors may be harmful or fatal. COMPONENT B: DANGER: OXIDIZER, IRRITANT. Contains Peroxide, dibenzoyl (CAS: 94-36-0). CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE. Keep from contact with clothing and other combustible materials. Causes eye/skin irritation. May cause respiratory irritation. May cause skin sensitization by skin contact. Harmful if swallowed.

First-Aid: Eyes – Hold eyelids apart and flush thoroughly with water for 15 minutes. Skin – Remove contaminated clothing. Wash skin thoroughly for 15 minutes with soap and water. Inhalation – Remove to fresh air. Ingestion – Do not induce vomiting. Dilute with water. Contact physician. In all cases contact a physician immediately if symptoms persist.

 Handling and Storage:

COMPONENT A: Keep away from heat, sparks, sunlight, electrical equipment or flame. VAPORS MAY IGNITE AND EXPLODE. DO NOT SMOKE. Open doors and windows during Open doors and windows during use. Use adequate local and mechanical ventilation. Wear protective equipment (chemically resistant gloves/goggles/clothing) to prevent direct contact with skin and eyes. Use properly fitted NIOSH vapor cartridge respirator if ventilation is poor. Wash thoroughly with soap and water after use. Remove contaminated clothing after use. Store product in tightly sealed containers in a cool, dry well ventilated area at temperatures between 55° F and 75°F away from ignition sources. Use explosion-proof electrical (ventilating, lighting and material handling) equipment. Use non-sparking tools. Take precautionary measures against electrostatic discharges.To avoid fire or explosion, dissipate static electricity during transfer by grounding and bonding containers and equipment before transferring material.

COMPONENT B: Keep products in original container. Store in cool, dry well ventilated area. keep away from material or conditions listed in conditions to avoid. Do not grind or subject peroxide to frictional heat or shock. Do not add peroxide to hot reaction mixtures. Do not transfer to rigid containers with tight or screw-on closures. Do not allow peroxide to dry out, as the material will become friction sensitive. Wear protective equipment and/or garments list for personal protective equipment. Avoid inhalation and skin and eye contact. Dispense and transfer in an area separate from storage area.The addition of accelerators from polymerization may result in vigorous decomposition. Store below 100°F. Do not return to original container.

Clean Up:

COMPONENT A: In case of spill, eliminate all ignition and heat sources. Ventilate area. Open doors and windows. Wear chemical resistant gloves/goggles/clothing. In absence of proper ventilation use properly fitted NIOSH respirator. Confine spill, collect using noncombustible absorbent material and place in properly sealed container. Dispose of excess product in accordance with applicable local, state and federal regulations.
COMPONENT B: Evacuate area of all unnecessary personnel. Wear protective equipment and/or garments described in PPE if exposure conditions warrant. Keep out of reach of water sources and sewers. Carefully collect the material and transfer to polyethylene-lined containers. Do not allow peroxide to dry out, add water if necessary.