How to Apply Evercrete DPS

Instructions for the Application of Evercrete DPS
Please Read the entire page prior to use.

• Surface preparation of New untreated Concrete, Old Concrete, and Cracked Concrete.
• Application of Evercrete DPS.
• Environmental conditions.
  

All concrete surfaces to be treated with Evercrete DPS must be thoroughly cleaned. Paint, glue, oil, grease etc. have to be removed, either by grinding or blasting or environmentally friendly chemical stripping. 5-50ºC is the ideal temperature for Evercrete treatment. Just apply the product using low-pressure sprayer, soft brush or rubber rake. Depending on concrete surface absorption, 0.2-0.3 liters/m2 should be applied. Do not allow Evercrete DPS to remain in pools on the surface. These should be spread out with a rake or brush. It is not wise to treat a concrete surface with Evercrete DPS, if it is raining directly on the surface. It is perfectly all right for the surface to be damp.

I. Surface preparation
....A. New untreated Concrete
...........1. .Patch any defects greater than 1/16 inch in diameter such as holes or
................cracks. Refer to Item C.1.
...........2...Remove laitance. (An accumulation of fine cementitious particles on the
.............. .surface of fresh concrete usually due to an upward movement of water - as
.............. .when excessive mixing water is used.)
...........3...Remove efflorescence. (Powdery soluble salt crystals sometimes found on
................the surface of new concrete after evaporation of surface water.)
...........4. .Remove all dust or dirt visible to the eye.
...........5. .When the new concrete has set or the formwork is removed (24 hours
................maximum) immediately saturate the surface with Evercrete. In this case it is
................important to make sure that all formwork oils or mould oil is removed
...........6...After 24 hours apply a second coat of Evercrete DPS.

..B. Old Concrete
..........1.Remove old paint, sealers and oils from the surface so that bare concrete is
............. visible. This may be accomplished by either scabbling, wire brushing, acid
............. etching or using a solvent cleaner.
..........2. Remove laitance and efflorescence, if present.
..........3. Remove all dust or dirt visible to the eye.
..........4. Patch any defects greater than 1/16 inch in diameter such as holes and
............ cracks. Refer to Item C.1.
..........5. Apply Evercrete DPS liberally.
..........6. After 24 hours apply a second coat of Evercrete DPS.
. C. Patching of concrete defects greater than 1/16 inch in diameter
.........a.If a crack is less than 1/8 inch in diameter and water is weeping.
...........1. Wet the surface area completely with Evercrete DPS, immediately following
...............the wetting, dry Portland powder should be hand rubbed (using latex gloves)
...............into the cracks.
...........2. Wet the treated surface again with a second coat of Evercrete DPS, wait 10
...............minutes, "dust" surface with dry Portland powder again and then apply a
...............third coat of Evercrete.
.........b. If a crack (or hole) is greater than 1/8 inch in diameter and water is flowing in
.............at less than one gallon per hour.
..........1. Wet the surface area completely with Evercrete DPS.
..........2. Fill holes and cracks with a moist mixture of Portland based patching cement
..............(one part water/3-4 parts sand mix or its equivalent.) using 1 part water and 1
..............part Evercrete DPS to achieve normal consistency of cement. This mixture
..............should remain workable for 15 minutes.
..........3. If necessary, push the mixture into the hole by hand, (using latex gloves).
.........4. After the mixture is in the hole, smooth surface first with trowel, then with a
.............soft paintbrush dampened with water.
..........5. Wet treated surface again with Evercrete DPS, wait 10 minutes, then "dust"
.............surface with dry Portland powder and then apply a third coat of Evercrete
.............DPS.
..........6. Wait 20 minutes, the "dust" surface with dry Portland powder and then apply
..............a fourth coat of Evercrete DPS.
..........7. Spray apply Evercrete DPS liberally over the repaired area.
.. ....c. If a crack (or hole) is greater than 1/8 inch diameter and water is flowing in at
.......greater than 1 gal. per hour, repeat 7 steps listed under item 2 above, then we
.......would also recommend injection, as another option or an epoxy coated wire
.......screen may be inserted between applications of the mixture. Also, for very heavy
.......flow rates, be sure that the water (Evercrete DPS)- cement ratio is not greater than
.......50% and is not less than 32%. In general, the lower the water-cement ratio, the
.......greater the strength of the concrete. However, in order to completely fill each hole
.......and crack as far into the surface as possible, sometimes a slightly wetter mixture
.......is required.
II. Application
.......1. Do not dilute or mix Evercrete DPS with other liquid.
.......2. Shake or stir Evercrete DPS prior to use.
.......3. Do not apply to glass, glazed surfaces, or aluminum, as etching will occur. In
...........case of accidental contact, rinse thoroughly with water immediately.
.......4. Apply using mop, brush, roller, or garden-type sprayer.
............1. Apply liberally and saturate all areas.
............2. Vertical walls should be applied from the bottom up to ensure uniformity of
................application.
........5. Normal coverage is about between 80 - 180 square feet per gallon, depending
............on the surface absorption.
............1.We would recommend under normal conditions, for general concrete strength
................enhancement, that Evercrete is sprayed on in two coats, the second coat
................24-hours after the first coat.
............2.Where excessive moisture is present or where concrete has been subjected
...............to environmental factors causing structural deterioration, additional coats
...............may be required (4 coats max.)
............3.The consumption rate depends on the concrete permeability and porosity.
III. Environmental conditions
..........1. Dew point temperature-5 degrees F above the surface temperature. ..
.. .......2. Ambient temperature-between 40 degrees F and 95 degrees F.
..........3. Surface temperature-between 35 degrees F and 90 degrees F. If the surface
..............temperature is greater than 90 F, wet surface with water prior to Evercrete
..............DPS application.
..........4. Relative humidity-between 10% and 90%.