INFORMATION BULLETIN

CLARO-COTE

For Concrete

WILL NOT YELLOW UNDER ARTIFICIAL LIGHT OR SUNLIGHT

ONE COAT CURES, HARDENS, SEALS, DUST PROOFS.

RESULTS PROVEN BY RECOGNISED INDEPENDENT TESTING LABORATORIES.

WHAT IS IT? CLARO-COTE is a clear, quick drying LIQUID, for application to newly poured or old concrete. CLARO-COTE seals in the gauging water, hardens floor surfaces and seals against construction stains. Excellent for old concrete to prevent dusting and to re-harden surface.

WHY IS IT GOOD? Provides easiest curing method and eliminates use of wet straw or sawdust or burlap by control of loss of gauging water. Use of CLARO-COTE materially improves adhesion of floor coverings or paints to concrete. Effectively retards "pitting" and "crumbling". Reduces maintenance costs by eliminating construction stains and protecting concrete against effects of most chemicals, greases and oils. CLARO-COTE also protects floor from mortar and plaster droppings. These droppings can be easily removed from a CLARO-COTE protected floor by use of a broom or washing with a MOMAR recommended product. Floors to be sealed with CLARO-COTE do not require etching. CLARO-COTE is self-penetrating! CLARO-COTE is not a water proofing agent, but will control the moisture vapour to a large extent and minimise the amount of water being carried through the surface. The one coat of CLARO-COTE hardens the slab better than a three coat application of a silico fluoride hardener.

PENETRATION: CLARO-COTE cures, hardens and seals through penetration into the slab. Normal penetration on a new slab is 1 to 1.4 millimetres. This penetration is 25 times deeper than surface active cures or hardeners. Therefore, CLARO-COTE represents a more permanent and longer lasting protectant.

WHY IS IT BETTER? PROVEN: 33.3% faster drying time on newly poured concrete (or old) than the most widely accepted products of its type. PROVEN: CLARO-COTE allows personnel quicker use of area while curing is being completed. PROVEN: Provides concrete with 10 times the abrasion resistance normally produced by most widely accepted products of its type. PROVEN: MORE COVERAGE. For curing, hardening, sealing and dust proofing new concrete, normal minimum coverage = 10 sq m per litre, normal average coverage = 11 sq m per litre; for hardening, sealing and dust proofing old concrete, normal minimum coverage = 14 sq m per litre, normal average coverage = 17 sq m per litre.

GENERAL INFORMATION

APPLICATION PROCEDURE FOR CURING, HARDENING AND SEALING NEW CONCRETE:

Estimated coverage minimum, 10 sq m per litre normal 11 sq m per litre. As soon as concrete reaches initial set or after surface is free of excess water, apply CLARO-COTE using a Sprayer, Roller or Lamb's wool applicator. For form concrete, apply as soon as forms are removed. When Roller or Lamb's wool applicator is used, care should be taken not to dislodge surface sand or cement particles.

APPLICATION PROCEDURE FOR HARDENING AND SEALING OLD CONCRETE OR FOR GLOSS COAT ON NEW CONCRETE ALREADY CURED: Estimated minimum coverage 12.5 sq m per litre, normal coverage = 17 sq m per litre. Surface must be clean, free of all wax, oil, grease. Do not etch floor etching is not necessary since CLARO-COTE is self penetrating. Use a Lamb's wool applicator or equivalent to apply the CLARO-COTE. Only one coat is recommended. If second coat desired to provide heavy surface gloss, then allow 4 hours drying time of first coat and apply second coat in similar manner.

PRECAUTION: CLARO-COTE is combustible, keep away from open flame. Apply only where proper ventilation is present.

CONTAINER SIZES: 5, 25, 50, 100, 210 litre metal drums.


CLARO-COTE

SUPPORTING DATA and LABORATORY TEST RESULTS



PHYSICAL PROPERTIES

APPEARANCE.........................................CLEAR LIQUID

VISCOSITY: #4 Ford Cup......................................17,0 sec

COLOUR...................................................GARDENER #1

WATER RETENTION (Loss of water in mortar). Exceeds requirement of ASTM C309-72: 0,055g/sq cm. Actual: 0,029 to 0,044g/sq cm as tested by SABS. Untreated surface: 0,24g/sq cm

SOLIDS.........................................................................15%

SOLVENTS:..................................Flash point 42C (T.C.C.)

DRYING TIME (Dust Free):.......................................20 min

Full hardness...........................................................1½ hours

SPECIFIC GRAVITY:...................................................................0,87


CHEMICAL RESISTANCE

ALKALI...........................................................EXCELLENT

STRONG ACIDS.............................................EXCELLENT

WEAK ACIDS.................................................EXCELLENT

SOAPS.............................................................EXCELLENT

MINERAL OILS..............................................EXCELLENT

GREASE..........................................................EXCELLENT

WATER...........................................................EXCELLENT

VEGETABLE OILS.........................................EXCELLENT

ANIMAL OILS................................................EXCELLENT

AROMATIC HYDROCARBONS....................................................POOR

KETONES...................................................................POOR

EFFECT OF SUNLIGHT..........................................NON-YELLOWING


ABRASION TEST FOR RELATIVE SURFACE HARDNESS

The purpose of this test was to determine the hardness of identical concrete slab surfaces created by the application of 1coat of CLARO-COTE and 3 coats (according to manufacturer's directions) of a leading silico fluoride concrete hardener. Each slab (30x30x10cm) was subjected to an abrasion test as outlined by U.S. Corps of Engineers Test CRD-C52-54 "Resistance of Concrete Surfaces to Abrasion, Rotating-Cutter Method."

RESULTS OF TESTS:

Slab Number Curing Material Abrasion loss (g/sq cm)

1 One coat CLARO-COTE,10sq m per litre: 0,210

2 Silico Fluoride type concrete hardener, applied according to manufacturer's directions: 0,242

3 Control sample - no surface treatment: 0,274

CONCLUSION: 1 coat of CLARO-COTE (the same coat as used for curing, sealing and dust-proofing) created a harder slab than was created by the Silico Fluoride Hardener.



ABRASION TEST FOR

SURFACE HARDNESS


Carried out on surface prepared with standard concrete mixture used by construction firms. Tested as per CRD-C52-54 (U.S. Corps of Engineers Method).


RESULTS:

Sample Identification Abrasion loss (g/sq cm)

1 Treated with CLARO-COTE: 3,99

2 Surface untreated:14,40

CLARO-COTE imparts 10 times the relative hardness of sealed to unsealed concrete surfaces - than other products which claim hardening properties.


CLARO-COTE tested as aid in bonding of floor covering materials to concrete floor.

Two 30x30x10 cm slabs were cast from the same batch of concrete. The surface of each was "finished off" smoothly. The surface of one slab was treated with CLARO-COTE and the other was left untreated. After the concrete was cured for 28 days, a standard asphalt tile was cemented to the surface of each slab. Seven days after being placed on the slabs the two tiles were pulled loose. It was noted that the bond failure of the plain slab occurred mostly between the concrete and the asphaltic cement, whereas the bond failure of the CLARO-COTE treated slab occurred mostly between the asphalt tile and the asphaltic cement.
It thus appeared that the application of CLARO-COTE provided the concrete with the ability to hold the asphalt cement at least 50% better than did the untreated concrete

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