ProTXcoat 755SCAC

Single Component Acrylic Coat

water based UV Resist acrylic corrosion protection coating

ProTXcoat 755 SCAC is a single pack water based high build acrylic UV resistant coating. The product is supplied ready to use and is ideal for protecting metallic and cementitious surfaces subject to weathering and corrosion. The product is capable of long term corrosion protection on mechanically abraded or hydro-blasted surfaces.

  • Single component water based acrylic
  • UV stable & flexible once cured
  • Apply to mechanical or hydro-blasted prepared surfaces
  • 10 years + protection
  • Water based acrylic technology
  • Single component
  • Apply by brush, roller or standard airless spray
  • Flexible with excellent elongation
  • Touch dry in 60 minutes at 20˚C
  • Tolerant of less than ideal surface preparation
  • No primer required on metallic surfaces
  • UV stable
  • Provides long term protection in corrosive environments

TECHNICAL SPECIFICATIONS

GRP Substrates – Hand tools

  1. Wipe away any ponding water, oil or grease using a solvent wipe.
  2. All surfaces must be cleaned using coarse sandpaper.
  3. Once abraded, the surface must be cleaned with solvent.
    Metallic Substrates – Hand tools
  4. Wipe away any ponding water, oil or grease using a solvent wipe.
  5. All surfaces must be cleaned using wire brush, metal file, coarse sandpaper etc.
  6. Once abraded, the surface must be cleaned with solvent.

Metallic Substrates – Mechanical abrasion

  1. All oil and grease must be removed from the surface using an appropriate cleaner such as MEK.
  2. All surfaces must be mechanically abraded using handheld grinders to ISO 8501/4 ST3 (SSPC SP3 ST3).
  3. Once abraded, the surface must be degreased and cleaned using MEK or similar type material.
  4. All surfaces must be coated before gingering or oxidation occurs.

Metallic Substrates – Hydro-blasting

  1. All surfaces must be hydro-blasted using clean water at 2,000psi + (130bar) to NACE 5 (SSPC SP13 WJ3-WJ1).
  2. All surfaces must be coated before gingering or oxidation occurs

Existing Concrete

  1. If the concrete surface is contaminated, pressure wash using clean water.
  2. Once the concrete is dry, mechanically abrade or scarify taking care not to expose the aggregate.
  3. Clean all dust and debris from the surface and prime with ProTXcoat 503 SPEP (low viscosity epoxy primer).
  4. Apply 503 SPEP at 150 microns (6mil) WFT, leave to cure for 3 hours (20°C/ 68°F) before overcoating.
  1. Allow new concrete to cure for a minimum of 21 days and treat to remove any surface laitance.
  2. Check the moisture content of the concrete prior to coating (8% moisture content or below).
  3. Lightly abrade the surface taking care not to expose the aggregate.
  4. Clean all dust and debris from the surface and prime with ProTXcoat 503 SPEP (low viscosity epoxy primer).
  5. Apply 503 SPEP at 150 microns (6mil) WFT, leave to cure for 3 hours (20°C/ 68°F) before overcoating.

This product is single component, however please ensure the following:

  1. The material is at a temperature between 15-25°C (60-77F°).
  2. The ambient & surface temperature is above 10°C (50F°).
  3. The ambient & surface temperatures are not less than 3°C (6°F) above the dew point.

Once these 3 checks have been met, please proceed with mixing the product.

  1. Agitate the product using an electric paddle mixer to ensure you have a consistent mix of acrylic emulsion.

Brush or roller applications

  1. Pour the material into a paint kettle or paint tray.
  2. Using a 50mm (2”) wide synthetic brush, stripe coat all edges, joints, corners and equipment with 555 SCAC.
    The stripe coat must be approximately 100mm (4”) wide, at 300 microns (12mil) wet film thickness.
  3. Once the stripe coat has cured sufficiently and is capable of being overcoated, apply the 1st coat of mixed product to all surfaces at 400 microns (16mil) wet film thickness.
  4. Once the 1st coat of material has cured sufficiently, approximately 30 minutes at 20°C (68F°), apply a 2nd coat of material to all surfaces at 400 microns (16mil) wet film thickness.

Spray Applications

  1. Spray application should be carried out by airless spray using a 30:1 ratio pump.
  2. Spray pressure of 2000psi and a tip size of 15-21 thou should be used.
  3. Apply the 1st coat of mixed product to all surfaces at 400 microns (16mil) wet film thickness.
  4. Once the 1st coat of material has cured sufficiently, approximately 30 minutes at 20°C (68F°), apply a 2nd coat of material to all surfaces at 400 microns (16mil) wet film thickness
Coverage Rates
20ltrs (5.3 US gallon) of fully mixed product will give the following coverage rates50m2 at 400 microns536ft2 at 16mil
Please note that the coverage rates quoted are theoretical and do not take into consideration the profile or condition of the surface being repaired.
Cure Times
At 20°C (68°F) the applied materials should be allowed to harden for the times indicated below before being subjected to the conditions indicated. These times will be extended at lower temperatures and reduced at higher temperatures:Touch Dry30 minutes
Minimum overcoating time30 minutes
Hard dry24 hours
Full cure7 days
Maximum overcoating timeIndefinite
Pack Sizes
This product is available in the following pack sizes20ltrs (5.3 US Gallon).
Colour
Single componentWhite or light grey (standard colours), various colours on request
Over-coating times
MinimumThe material can be over-coated as soon as it is touch dry, approximately 30 minutes at (20°C (68°F).
MaximumIindefinite
Storage Life5 years if unopened and store in normal dry conditions (15-30°C/ 60-86F°)
Other Technical Documents
Safety Data Sheets ProductSingle component material
Specification Sheet QuickTechnical Performance Information
Application guideRoller & Spray applications

Please ensure good practice is observed at all times. Protective gloves, goggles & a disposable coverall must be worn
during the mixing and application of this product. Before mixing and applying the material ensure you have read the fully detailed Safety Data Sheet.

The data contained within this Technical Data Sheet is furnished for information only and is believed to be reliable at the time of issue. We cannot assume responsibility for results obtained by others over whose methods we have no control. It is the responsibility of the customer to determine if the product is suitable for use. ProTXcoat accepts no liability arising out of the use of this information or the product described herein.