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470 D-TECH™ is the easiest, most economical, permanent solution to problems of contamination and abrasionon existing concrete. More than a sealer, the clear, water-based formula penetrates deeply within concrete to increase the material’s density and hardness from within. It is a ready-to-use, clear, water-based penetrating sealer designed for application to the surface of concrete, above or below grade, interior or exterior.

Product Type: 1K (1 component) Coating, Sealer, Waterborne Coating

Compatible Substrates & Surfaces: Concrete

Features: Abrasion Resistant, Freeze/Thaw Stability, Good Barrier Properties, Good UV Stability, Non-Toxic

Application Method: Brush, Roller, Spray

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Knowde Enhanced TDS

Identification & Functionality

No. Of Components

One

Features & Benefits

Major Advantages
  • Increases concrete density and hardness
  • Prevents chemical corrosion and physical abrasion of the treated surface
  • Effective in reducing freeze-thaw spalling
  • Treatment is permanent and does not require subsequent re-application every few years
  • Effective as a negative side waterproofing against a hydrostatic head of over 115 ft/35 m
  • Reduces or eliminates efflorescence and leaching in concrete
  • Effective barrier (without loss of breathability) of water-vapor emission through concrete
  • Solvent-free, odor-free, non-toxic and non-flammable
  • Improves the bonding of cementitious toppings, coatings and paints
  • Ultra-violet stability
  • Treated surface is more resistant to water and de-icing salt intrusion
Features
  • Never wears off
  • Increases concrete density and hardness, causing an overall increase in concrete's physical properties and sealing the concrete from within
  • Prevents chemical corrosion and physical abrasion
  • Reduces spalling due to freeze/thaw cycles
  • Cuts or eliminates efflorescence and leaching
  • Improves bonding of cementitious coatings
  • Solvent-free, odor-free, non-toxic, and non-flammable
  • Passes EPA potable water specifcations
  • Will not change appearance of concrete
  • Can be sprayed, brush or rolled onMost cost effective solution for concrete sealing and protections

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Basic Uses

Brushed, rolled or sprayed on concrete for sealing, hardening, dust proofing, waterproofing and weatherproofing. Protects concrete surfaces from abrasion and freeze-thaw damage and stops water seepage where it is not caused by cracking or other structural failure.

Clean Up

Water

Application Instructions
  • Mix D-TECH™ thoroughly before using and keep it agitated during use as the active ingredients are in suspension andwill settle. Do not thin in any way.Fresh Concrete - D-TECH™ is applied to green concrete as soon as the surface water sheen has disappeared and theconcrete can be walked upon. On vertical, formed surfaces, D-TECH™ is applied as soon as the forms have beenstripped.
  • Old concrete - Surfaces to be treated should be swept or brushed clean and then tested for absorption by sprinkling wateron them. If the water drops bead up and are not readily absorbed by the concrete, the surface must have been previouslycoated or oiled and it must therefore be cleaned before D-TECH™ application. D-TECH™ must be absorbed into theslab to be effective. Oil or other stains must be removed before applying D-TECH™. Wash the surface with a strongstripper such as a 7:1 solution of muriatic acid and/or a strong detergent such as trisodium phosphate. Rinse thoroughlywith water and remove excess water. Puddled water must be removed.
Coverage

D-TECH™ is best applied by low pressure spray, although it can be applied with a roller or brush. 470 is normally applied in two light coats, the second as soon as the surface is dry to the eye, with each coat averaging between 300 and 400 square feet per gallon (75 and 100sf/L). If the application is in one coat, coverage should be about 190 square feet per gallon (50 sf/L). Absorption amounts will vary according to the porosity of the concrete. For a harder surface apply one coat of 470 at the rate of 300 square feet per gallon (75 sf/L) followed by one coat of 473 at the rate of 300 square feet per gallon (75 sf/L). For chemical hardening, for very porous concrete, or to maximize resistance to stains or mild acids apply a 2nd coat of 473 until the surface is saturated. The surface will show a light sheen when saturation is reached. A blooming or whitish deposit sometimes forms on the surface if ponded areas are left to dry. To avoid this blooming effect make sure that D-TECH™ is not allowed to pond on the surface or flush the surface with clear water 30 to 45 minutes after application to remove any ponding residue. If residue remains after drying, brush with a stiff broom and dilute with D-TECH™ to remove if necessary.

Properties

Technical Details & Test Data

Technical And Product Data

D- TECH™ penetrates deeply into the capillary pores of the concrete and crystallizes, becoming part of the concrete itself. D- TECH™ will not change the appearance of the concrete surface to which it is applied. D- TECH™ has been tested as a chemical hardener by the Schmidt hammer rebound test with the following results:

  • 10 year old slab
    • untreated : 2000 psi
    • one coat 470 : 3000 psi
    • two coats : 4600 psi
  • New Pour Treated : 4900 psi
    • one coat 470 :6000 psi
Case History 1
  • Problem - The concrete floor of a major “big box” retailer wassuffering severe scarring as a result of a high trafficand constant impact of heavily loaded forklift trucks.In addition to being unsightly to customers, thedamage was generating heavy dust.
  • Solution - D-tech was applied to the entire floor.
  • Result - The entire repair process was conducted in one after hourssession, with no loss of access to the area by either customers or staff. Scarring and dust degeneration were eliminated,prompting the parent company to specify applications ofd-tech in all of the organizations stores.
Case History 2
  • Problem - Moisture was seeping through the concrete floors of fertilizer storage silos for a major grain producer. A signifficant portion of fertilizer was being contaminated from the groundwater and was rendered unusable.
  • Solution - The entire oor was treated with d-tech.
  • Result - The d-tech treatment stopped moisture seepage in the floor and prevented contamination of the fertilizer

Packaging & Availability

Packaging

20L pails & 200L drum

Storage & Handling

Pot Life

Indefinite

Shelf Life

12 months at 5°C - 24°C

Special Handling

Do not spray or allow overspray on glass or aluminum, it causes etching. Any compound sprayed on glass or aluminumshould be immediately rinsed off. Do not allow the product to puddle or allow water to stand on the surface immediately after application, it can leave a residue that is difficult to remove. Rinse the job thoroughly after application whenever
possible and use lighter coats if necessary. If difficult residue is formed, try scrubbing with a stiff brush and water pressure, and if necessary, dilute the residue with more D-TECH™. Tilt up slabs or other preformed units treated withD-TECH™ and stacked in contact with one another may be bonded together unless a bond breaker is applied, after the
D-TECH™, over the surface that will be in contact. D-TECH™ is compatible with most bond breaker systems, checkwith manufacturer. D-TECH™ should not be applied when ambient temperature is at or below freezing. D-TECH™should not be applied where rain or other water is running over the surface or while there are puddles of water on the surface or when rain is imminent.
Do not allow D-TECH™ to freeze and do not use any D-TECH™ that has been previously frozen.