BestPrimer EP702

Water-based epoxy primer, two components

Advantage:
  • Deep penetrating, good bonding to substrates including metal.
  • Allows surface to breathe preventing build-up of vapor pressure.
  • Can apply to a humid surface (humidity of the substrate ≤ 8%).
  • Mild acid, alkali, chemical, mineral oil...resistances.. 
  • Easy to apply by brush, roller, sprayer...
  • Long pot life to save cost. 
  • No offensive odor, non toxic.
  • Environment friendly.

 
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  •  BestPrimer EP702 is a water-based epoxy primer. It is a two pack low viscosity epoxy. BestPrimer EP702 has been specially formulated to improve penetrating and adhesive ability to the substrate for all kind of BestCoat.
  • BestPrimer EP702 is recommended as a priming coat before applying the BestCoat system for walls, floors, ceilings of pharmaceutical and other clean areas, substrate against mild acids, alkalis, mineral oils, chemicals, park-decks, industrial projects, warehouses...
  • It can be applied on a wide variety of substrates such as concrete, masonry, mortar, etc.


  • Deep penetrating, good bonding to substrates including metal.
  • Allows surface to breathe preventing build-up of vapor pressure.
  • Can apply to a humid surface (humidity of the substrate ≤ 8%).
  • Mild acid, alkali, chemical, mineral oil...resistances.
  • Easy to apply by brush, roller, sprayer...
  • Long pot life to save cost.
  • No offensive odor, non toxic.
  • Environment friendly.

Appearance / Color:

Part A: Transparent liquid.

Part B: Light yellow liquid.

Part A+B: Light yellow liquid, transparent after curing.


Density:
Part A: 1.10 ± 0.01 kg/lit (25oC)
Part B: 1.04 ± 0.01 kg/lit (25oC)
Part A+B: 1.05 ± 0.01 kg/lit (25oC)
Application temperature:
Minimum: +20oC (Above dew point at least 5oC)
Maximum: +35oC
Maximum permissible relative humidity: 80%
Mechanical and chemical properties:
Penetrating and bonding improve.
Mild acid, alkali, chemical and mineral oil resistances.
Solid content:
≥ 40%

Package:

05kg/set; 25kg/set.

Mixing ratio:
Component A: Component B = 1:4 (By weight)
Consumption:
0.10  ÷ 0.25 kg/m2 /layer (Depending on surface condition)

Preserve:

In cool, dry place (5oC ÷ 35 oC)

Shelf – life:

12 months upon manufacturing date

 

Pot life:

Ambient temperature
+20oC +25oC +30oC +35oC
Pot life
150 mins 100 mins 60 mins 40 mins


Substrate requirement:

  • For strong absorption and soft surfaces: Dilute BestPrimer EP702 with 10% clean water to apply the first layer. Apply at least 02 primer layers before coating BestCoat lines.
  • For a flat surface, solid and average roughness: Apply 01 primer layer.
  • For polished hardener surfaces: Should be treated with BestCorros before application of BestPrimer EP702.

Substrate preparation: 

  •  Concrete floor shall be cured for minimum 28 days, compressive strength: ≥ 20 MPa, tensile strength:  ≥ 1.5 MPa.
    The substrate surface must be flat, solid, free from water, impurities, debris and dirt must be properly cleaned.

Mixing:

  • Start the mixer, slowly add component A to component B (according to the mixing ratio) while the paddle is rotating at 300 ÷ 400 rpm. Minimum mixing time is 03 minutes but can mix longer until the required homogeneity is achieved. Leave material for about 05 minutes and mix again before application.

Application:

  • After mixing, apply by roller, sprayer or brush one full coat of BestPrimer EP702 at a spreading rate of approximately 0.10 ÷ 0.25 kg/m2/layer (depending on surface condition). Waiting for each coat dry before applying the further layer.
  • Note: Do not apply more than 0.40 kg/m2/layer in any case.
    Placed areas must be good ventilation during film forming time, and avoid sunlight whenever materials haven’t been cured. Do not use materials that are out of pot life.

Cleaning:

  • Clean tools, and equipment with clean water and detergent before product hardening.

Safety:

  • BestPrimer EP702 is a non-toxic material. However, should wear gloves, masks, and glasses while handling the product.
    In case of accidental eye contact, wash with fresh water and seek medical advice immediately.