Products

ECB

Conpro Start

Conpro Primer

• A slurry coat is a good way to increase the
  bond of the repair material to the substrate.
  The slurry coat is simply the repair mortar with
  additional water, mixed to a batter-like consistency.
  This is brush applied to the repair zone including
  the edges. It is important to apply the repair mortar
  before the slurry coat dries. The optimum time
  to apply a material to the slurry is when the slurry
  has a dull sheen. Do not apply the repair material
  when the slurry is glossy (wet) or when it has
  dried to a completely flat finish. The open time
  of slurry coat is about 10 - 15 minutes.
  If the slurry coat dries remove it and re-apply. 
   
• Conpro Primer and Conpro Weld are formulated
  to increase bond and provide up to 72 hours
  open time before applying the repair material.
  This makes the timing of the placement of the
  repair mortar less critical than the slurry coat.
   
• Rebar must be cleaned of all scale and rust.
  The concrete cover must be removed to a point
  where the exposed rebar does not show signs
  of corrosion. When using ECB it is not necessary
  for the rebar to be cleaned to bright metal.
  It is necessary to remove all rust and scaling.

• Most substrates are very absorptive.
  Pre-soak the repair zone prior to placing a repair
  mortar. Remember that wind as well as heat cause
  rapid evaporation. Saturated Surface Dry (SSD) is
  the proper procedure. This means that the substrate
  is saturated with water but there is no standing
  water in the repair zone. The edges of the
  repair zone must also be saturated to prevent
  perimeter cracking.