COATING APPLICATION


General instructions

Weather and Concrete Conditions

  • The SUPERSHIELD treatment must not be applied under rainy conditions or when ambient temperature is below 40ºF (4ºC).
  • Because SUPERSHIELD requires moisture to initiate the crystalline waterproofing process, all concrete, whether fresh or old, must be saturated with water.(See Wetting Concrete below.)
  • The concrete surface must be a minimum of 20 hours old before application of the SUPERSHIELD coating treatment.
  • For fresh concrete, the period between 24 hours and 72 hours is the optimum time within which to apply SUPERSHIELD as the new concrete is still “green” and requires very little  pre-watering. However it is also  well suitable for old concrete.

 

Coverage

For normal surface conditions, the coverage rate for each SUPERSHIELD coat is 1.25 to 1.5 lb./sq. yd. (0.65 – 0.8 kg/m2).

 

Surface Preparation

  • The concrete surface to be treated must be clean and free of laitance, dirt, film, paint, coatings or other foreign matter. The surface must also have an open capillary system to provide “tooth and suction” for  the SUPERSHIELD treatment.
  • If surface is too smooth (e.g. where steel forms are used) or if surface is covered with excess form oil or other foreign matter, the concrete should be lightly sand-blasted, water-blasted, or etched with muriatic (HCL) acid.
  • Horizontal surfaces should have a rough wood float or broom finish. Concrete laitance must be removed from surface by light sand-blasting, water-blasting or etching with muriatic (HCL) acid.
  • Surfaces to be etched with muriatic acid should be dampened with water before application of the acid. After acid etching flush concrete thoroughly with clean water.

 

Structural Repair

  • Rout out cracks, faulty construction joints and other structural defects to a depth of 1.5 inches (37 mm) and a width of one inch (25 mm).
  • Apply a brush coat of SUPERSHIELD CRYSTALGUARD (as described below) in cavity and allow to dry for 10 minutes.
  • Fill cavity by tightly compressing CRYSTALGROUT in thick putty consistency into the groove with pneumatic packing tool or with hammer and wood block. (See below for CRYSTALGROUT mixing instructions.)
  • Against a direct flow of water (leakage) or where there is excess moisture due to seepage, use SUPERSHIELD CRYSTALPATCH in lieu of CRYSTALGROUT followed by a brush coat of SUPERSHIELD CRYSTALGUARD. For expansion joints or chronic moving cracks, flexible materials such as expansion joint sealants should be used. Refer to SUPERSHIELD Repair Procedures for more detailed instructions.

 

Wetting Concrete

SUPERSHIELD requires a saturated substrate and a damp surface. Concrete surfaces, therefore, must be thoroughly saturated with clean water prior to the application so as to aid the proper curing of the treatment and to ensure the growth of the crystalline formation deep within the pores of the concrete. Remove excess surface water before the application. If concrete surface dries out before application, it must be re-wetted.

 

Mixing

  • Mix SUPERSHIELD with clean water only (water that is free of salt and other deleterious materials).
  • Mix clean water into the SUPERSHIELD powder with a paddle on a slow speed electric drill (250 RPM) or with other equipment that ensures adequate mixing. For small jobs, SUPERSHIELD may be mixed by gloved hand or by trowel.
  • Be sure that the quantity mixed can be applied within 20 minutes. As the mixture thickens, stir frequently but do not add water.

 

Mixing For Slurry Coat

Mix SUPERSHIELD powder with clean water to a creamy consistency in the following volume proportions:

 

For Brush Application

  • 25 – 1.5 lb./sq. yd. (0.65 – 0.8 kg/m2) 5 parts powder to 2 parts water
  • 0 lb./sq. yd. (1.0 kg/m2) 3 parts powder to 1 part water

 

For Spray Application

  • 25 – 1.5 lb./sq. yd. (0.65 – 0.8 kg/m2) 5 parts powder to 3 parts water

(ratio may vary with equipment type)

 

Mixing CRYSTALGROUT

For filling grooves and patching on concrete, add water to SUPERSHIELD CRYSTALGROUT (1 parts water to 4 parts powder by volume). To prepare stiff putty consistency patching compound use the following procedure. Begin by mixing 3 parts powder with 1 part water by volume until smooth (Mix for min two minutes) .Then add an additional one part of powder (Total of 4 powder one water)and continue mixing to obtain a workable mortar consistency and trowel on as required. Do not mix more than can be applied in 20 minutes.

 

Applying SUPERSHIELD

  • Apply SUPERSHIELD with a semi-stiff nylon bristle brush, push broom (for large horizontal surfaces), or specialized spray equipment. Contact your SUPERSHIELD representative for further information.
  • The SUPERSHIELD coating must be uniformly applied and should be just under 0.0625 inches (1.25 mm) thick. A thicker coating can cause curing difficulties, especially in warm weather.
  • When a second coat (SUPERSHIELD CRYSTALGUARD or SUPERSHIELD CRYSTALGUARD ULTIMA) is required, it should be applied after the first coat has reached an initial set but while it is still “green” (Less than 48 hours). Light pre-watering between coats may be required if the second coating is delayed for more than 48 hours.
  • For slab (horizontal) applications, care should be taken to spread the SUPERSHIELD evenly, pulling a heavy broom over the fresh SUPERSHIELD. This should be done in long strips and will serve to eliminate settlement of the SUPERSHIELD in low spots on the slab and also to remove excess material which may have been applied.
  • In hot weather it is advisable to apply SUPERSHIELD either early in the morning or late in the day. This will prevent the SUPERSHIELD coating from drying out too quickly.

NOTE : Where a smooth, steel-trowelled finish is required Consult SUPERSHIELD representative.

Curing

  • A misty fog spray of clean water must be used for curing the SUPERSHIELD treatment. Curing should begin as soon as the SUPERSHIELD has set to the point where it will not be damaged by a fine spray of water.
  • Under normal conditions, it is sufficient to spray SUPERSHIELD treated surfaces three times per day for two to three days. In hot or arid climates, spraying may be required more frequently to prevent premature drying of the coating.
  • During the curing period, the coating must be protected from rainfall, frost, wind, the puddling of water and temperatures below 36ºF (2ºC) for a period of not less than 48 hours after application. If plastic sheeting is used as protection, it must be raised off the SUPERSHIELD treatment to allow the coating to breathe.
  • For concrete structures that hold liquids (e.g. swimming pools, reservoirs, wet wells, tanks, etc.), SUPERSHIELD should be cured for three days and then allowed to set for 12 days before filling the structure with liquid.
  • For structures holding particularly hot and/or corrosive liquids, SUPERSHIELD should be cured for three days and allowed to set for 18 days before filling.
  • In situations where there is poor air circulation (e.g. small, enclosed reservoirs or wet wells), fans or blown air may be necessary to aid the curing of SUPERSHIELD.

 

Backfilling

Backfilling can take place 36 hours after the SUPERSHIELD application. If backfilling takes place within seven days after the application, the backfilling material should be moist so as not to draw moisture from the SUPERSHIELD coating.

 

Application of Paints, Epoxies or Similar Coatings

SUPERSHIELD requires 21 days of curing and crystal generation before the application of any paint or epoxy. Washing the SUPERSHIELD surface with a 3 – 5% muriatic acid solution is recommended before applying the coating. Be sure to flush all acid off the surface.

 

Application of Paint, Plaster or Stucco

SUPERSHIELD makes no representations or warranties regarding the compatibility of SUPERSHIELD products with plasters, stuccos, tiles and other surface-applied materials. It is the responsibility of the installer of these surface-applied materials to take whatever measures are necessary, including testing, to ensure acceptance by or adhesion to the SUPERSHIELD treated surface.

For more instructions, alternative application methods, or information concerning the compatibility of the SUPERSHIELD treatment with other products or technologies, contact the technical department of SUPERSHIELD.

 

Caution

SUPERSHIELD is highly alkaline.

  • Avoid contact with skin or eyes.
  • Protect hands with rubber gloves when handling dry powder or wet mixture
  • If skin comes into contact with SUPERSHIELD material, wash immediately and thoroughly with water for 15 minutes. If discomfort continues, seek prompt medical attention
  • Wear eye protection. If dry powder or wet mixture gets into eyes, flush immediately and thoroughly with water and seek medical aid.
  • Wear a suitable mask where there is potential for generating dust. If SUPERSHIELD is ingested, do not induce vomiting; have affected person drink two glasses of water and obtain immediate medical attention.

For material safety data sheets, please contact SUPERSHIELD or our representatives.

Repair procedures

REPAIR OF CRACKS AND FAULTY CONSTRUCTION JOINTS

  1. NO WATER FLOW

Step 1: Rout out crack/joint in a “U” shaped slot one inch (25 mm) wide and at least 1.5 inches (37 mm) deep. A “V” shaped slot is not acceptable.

Step 2: Remove all loose material and saturate with water. Allow water to soak into concrete and then remove all surface water.

Step 3: Apply one slurry coat of SUPERSHIELD CRYSTALGUARD at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2) to slot and to six inch (150 mm) strip on either side of slot. Application may be performed by brush or by gloved hand.

Step 4: While slurry coat is still tacky, fill slot to surface with SUPERSHIELD CRYSTALGROUT mixed in the following proportions: 1 part clean water to 4 parts CRYSTALGROUT by volume. Blend by trowel for 10 to 15 seconds only. Apply CRYSTALGROUT by gloved hand, then compress it tightly using a pneumatic packing device or a hammer and block.

Step 5: Once the CRYSTALGROUT is set (After one hour), then apply a slurry coat of SUPERSHIELD CRYSTALGUARD at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2) over the repaired area.

Step 6: Cure by fog spraying periodically with water for two days immediately after the slurry coat has set (Minimum 8 hours).

  1. AGAINST A FLOW OF WATER

Step 1: Rout out crack/joint in a “U” shaped slot one inch (25 mm) wide and at least 1.5 inches (37 mm) deep. A“V” shaped joint is not acceptable. Areas with most water flow should be identified and chipped slightly deeper.

Step 2: Remove all loose material and saturate dry areas with water. Allow water to soak in and then remove all surface water.

Step 3: Apply SUPERSHIELD CRYSTALPATCH to half the depth of slot immediately after removing surface water. CRYSTALPATCH is mixed by adding one part clean water to 3.5 parts CRYSTALPATCH powder by volume. CRYSTALPATCH should be applied to full length of crack/joint area.

Step 4: Apply a slurry coat of SUPERSHIELD CRYSTALGUARD at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2) in the slotover the CRYSTALPATCH and on the six inch (150 mm) strip of concrete surface on either side of the slot. Application may be performed by gloved hand or by brush.

Step 5: While slurry coat is still tacky, fill slot to surface level with SUPERSHIELD CRYSTALGROUT. CRYSTALGROUT is mixed by adding one part clean water to four parts SUPERSHIELD CRYSTALGROUT powder by volume. Apply CRYSTALGROUT by gloved hand, then compress it tightly by using a pneumatic packing tool or a hammer and block.

Step 6: Once the CRYSTALGROUT is set (After one hour), then apply a slurry coat of SUPERSHIELD CRYSTALGUARD at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2) over the repaired area.

Step 7: Cure by fog spraying periodically with water for two days immediately after the slurry coat has set (Minimum 8 hours).

  1. AGAINST HIGH PRESSURE WATER FLOW

Step 1: Rout out crack/joint in a “U” shaped slot one inch (25 mm) wide and two to three inches (50 mm to 75 mm) deep. A “V” shaped slot is not acceptable.

Step 2: In area of greatest water flow, drill hole or cavity one-half inch (13 mm) deeper into slot to accommodate a bleeder hose. A bleeder hose is a minimum 1.5 foot (0.5 m) length of smooth surfaced, fairly rigid tubing. Its purpose is to relieve the water pressure while crack/joint is being repaired.

Step 3: Remove all loose material and saturate dry areas with water. Allow water to soak in and then remove all surface water.

Step 4: Remove all loose material and saturate dry areas with water. Allow water to soak in and then remove all surface water.

Step 5: Apply SUPERSHIELD CRYSTALPATCH to half the depth of remaining slot area. CRYSTALPATCH is mixed by adding one part clean water to 3.5 parts CRYSTALPATCH powder by volume. If slot has dried out before CRYSTALPATCH application, it should be re-wetted.

Step 6: Apply a slurry coat of SUPERSHIELD CRYSTALGUARD at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2) in the slot over the CRYSTALPATCH and on the six inch (150 mm) strip of concrete surface on either side of the slot. Application may be performed by gloved hand or by brush.

Step 7: While slurry coat is still tacky, fill slot to surface level with SUPERSHIELD CRYSTALGROUT in thick putty consistency. CRYSTALGROUT is mixed by adding one part clean water to four parts SPERSHIELD CRYSTALGROUT powder by volume. Apply the CRYSTALGROUT by gloved hand, then compress it tightly by using a pneumatic packing tool or a hammer and block.

Step 8: Once the CRYSTALGROUT is set (After one hour), then apply a slurry coat of SUPERSHIELD CRYSTALGUARD at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2) over the repaired area.

Step 9: Cure by fog spraying periodically with water for two days immediately after the slurry coat has set (Minimum 8 hours).

REPAIR OF DEFECTIVE CONCRETE, ROCK POCKETS AND HONEYCOMBS

  1. NO WATER FLOW

Step 1: Rout out faulty concrete to sound concrete.

Step 2: Remove all loose materials and saturate area with water. Allow time for concrete to absorb water, then remove all free-standing water.

Step 3: Apply a slurry coat of SUPERSHIELD CRYSTALGUARD to cavity area at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2).

Step 4: While slurry coat is still tacky, fill cavity to surface with Supershied CRYSTALGROUT. For large patches, the use of aggregates in CRYSTALGROUT is recommended.

Step 5: Allow patch to set, then apply a slurry coat of SUPERSHIELD CRYSTALGUARD over repaired area at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2).

Step 6: Cure by fog spraying periodically with water for two days immediately after the slurry coat has set (Minimum 8 hours).

  1. AGAINST A FLOW OF WATER

Step 1: Rout out faulty concrete to sound concrete.

Step 2: Remove all loose materials and saturate area with water. Allow time for concrete to absorb water, then remove all free-standing water.

Step 3: To stop the flow of water, use SUPERSHIELD CRYSTALPATCH and fill the rest of the cavity with CRYSTALGROUT in thick putty consistency. For large patches, the use of aggregates in CRYSTALGROUT is recommended.

Step 4: After the patch has set, apply a slurry coat of SUPERSHIELD CRYSTALGUARD over repaired area at a coverage of 1.5 lb./sq. yd. (0.8 kg/m2).

Step 5: Cure by fog spraying periodically with water for two days immediately after the slurry coat has set (Minimum 8 hours).