724 High Build Iso Free

two-pack amine-epoxy functional acrylic zinc phosphate primer

For some time now, two-pack epoxy primers have been used under two-pack finishes to withstand aggressive environments and to protect various substrates, especially in the machinery and protective coatings market for a longer period than one component systems. Lacnam Paints objective was to develop alternative technologies and produce a two-pack primer which is less harmful to the environment and ecology.

Description and uses:

724 Iso-free High Build is a two-pack amine-epoxy functional acrylic zinc phosphate primer with the following features:

• Fast curing.
• Suitable for epoxy, polyurethane iso-free topcoats.
• Excellent adhesion to most substrates.
• Good sanding properties.
• Good gloss hold-out.

Typical areas of application are:

• Implements, materials handling industry.
• Marine coatings.
• Chemical and petroleum industry.
• Industrial and mining equipment.

Technical Specifications:

FINISH: Matt Buff Colour.
MIXING RATIO: Part A / Part B 3/1 (Volume).
THINNERS: T154, T156, T159.
POT LIFE: 10-12 hours @ 25°c.
VOLUME SOLIDS: 60%.
VOC: 395gm/ltr mixed.
COVERAGE: 6 – 8 Square metres per litre.
RECOMMENDED FILM THICKNESS: 100 microns dry.
APPLICATION: Brush, Roller and Spray.

Surface Preparation:

• When overcoating; Aged paint coatings should be tested for adhesion using
  Crosshatch or Crosscut methods. If aged paint coating lifts remove it.
• Remove all rust, oxides, millscale and lose paint from metal surface.
• Round off all sharp edges, welding joints and weld spatter.
• All surfaces to be painted should be clean and free from dust, dirt, oil, grease and
  moisture.
• All abrasive blast clean ferrous surfaces should be coated within 4 hours to avoid
  flash rusting.
• Do not apply at temperatures below 5’ Celsius. Do not apply at relative humidity
  above 85%, or when the substrate surface is less than 3’ Celsius above dewpoint.
•  Applied 724 Iso – Free high Build Primer coat subjected to exterior exposure for
  extended period of time should be accessed for “Chalking” before applying
  suitable topcoat to achieve optimum inter-coat adhesion.

Equipment Application: (Conventional or Airless Spray Recommended). As a Guide Use:

• Brush or Roller – Suitable for small areas only.
• Conventional Spray – 1.5 -2.0mm tip (or equivalent). Pressure pot set at 55 – 100kpa (8 – 15psi) and maintain gun air pressure 275 – 380kpa (40 -55psi).
• Airless Spray – Use heavy-duty airless spray with 10 -15 “(0.25 – 0.38mm) plus tip and pump ratio 30:1.

Product specification sheet

Manufacturer

Lacnam

Lacnam is a leading industrial paint supplier to wholesalers, manufacturers, government and private sector clients. Lacnam Paints Australia is a successful paint manufacturer that develops and produces specialized liquid paint coatings for industrial and heavy duty application.