SURFACE CONDITION
For best project results, the concrete should be in sound physical condition, free of extensive cracking, pitting and spalling. The surface must also be dry and clean and free of dust, dirt, efflorescence, oil, chemicals, pevious flaking coatings and other contaminants which may block effective long-term adhesion.

REPAIRS
For best visual results and long-term performance, cracks, holes and significant surface pitting should be filled with a cement patch material and allowed to cure as directed before proceeding.

EXPANSION JOINTS
Expansion joints in the concrete slab serve an important purpose, guarding against cracking in the slab due to movement — and should NOT be filled. If covering the expansion joints is still preferred, joints should first be treated with ElastoLock Exterior Membrane and Elastolock seam mesh to minimize the chance of any cracking in the finish later due to slab movement.

SMOOTH SURFACES
Very smooth or "power troweled concrete" lacks optimal surface profile for most effective bond. In such cases, etching the concrete is recommended to ensure good penetration and "grab" of the coating. Etching will also remove efflorescence from the surface. If etching is required, see the surface preparation section for instructions on etching.

WASHING THE SURFACE
Removing all dirt, debris and other contaminants is key for ensuring long term beauty and performance. For easiest and best results cleaning with a pressure washer is highly recommended.

MASKING / DROP SHEET USE
Protect adjoining walls and other objects prior to starting work.

Good surface preparation is easy if performed with attention to a few key details. For best results, follow written product instructions. For detailed preparation information, a visit to the surface preparation section is also recommended.

PROCEED WITH APPLICATION OF YOUR DESIRED FINISH ONLY WHEN PREPARATION STEPS ABOVE HAVE BEEN COMPLETED.

Exterior Concrete Preparation

HardRock® Exterior Application

 

 

HardRock is a three-step application that will allow you to add a clean looking, uniformly textured, slip-resistant finish to practically any exterior concrete surface. It's water repellent, stands up to all climate extremes and is easy to apply by roller with no special techniques required.

STEP ONE: Roll a uniform coat of Beauti-Tone Textured Primer onto your clean and dry prepared surface. Allow it to dry for one-to two hours (longer in damp or cool conditions) before proceeding with step two.

STEP TWO: Cut in along edges with a 4" paint brush and then roll on a uniform coat of HardRock in 4 x 4 ft. sections using the "Stone Texture Roller" with medium downward pressure. The stone texture roller creates a slightly more textured surface with excellent slip-resistant properties ideal for exterior conditions. (ii) Apply a SECOND COAT once the first coat has dried fully and enough to support your weight. Patchiness or minor imperfections in the finish will disappear when the second coat is applied. Allow HardRock to cure for 24 hours prior to application of HardRock Clear Coat Sealer the next day.

STEP THREE: Apply two coats of HardRock Clear Coat Sealer a few hours apart for final durability, salt, stain and chemical resistance

Where less texture and a more uniform "softer" effect is desired, RollerRock can also be applied with the "Tile Texture Roller."

*** OPTIONAL GROUT LINE & MORTAR JOINT EFFECTS: If a tile or flagstone effect is desired, a uniform coat of Beauti-Tone Textured Primer must be applied first in your desired "grout line / mortar joint" color. When Primer is dry, lay down a pattern as desired onto the dry primer using Beauti-Tone Grout Line or Flagstone Stencil Tape. Brush some textured primer over the tape to lock it down before HardRock application as detailed above. (Leave the ends of the stencil tape free so you can pull it up later.) After HardRock has cured for 24 hours, PEEL UP THE STENCIL TAPE to reveal the pattern and sweep up any debris before application of sealer/clear coat.

Visit the HardRock® page
for additional details.

READ AND FOLLOW ALL ENCLOSED DIRECTIONS AND PRECAUTIONS THAT COME WITH THE PRODUCT PRIOR TO BEGINING YOUR PROJECT.

If you have any questions — before or during your project — be sure to contact us at info@techstone.ca or call 1-877-279-0694. We are here to help you achieve great results!