PPG - Sigmacover 350 - An advanced Epoxy Primer for superior protection against corrosion. Sigmacover 350 is a two-component, a high-performance  primer/finish engineered to provide unparalleled protection for a wide range of surfaces. 

Key Features include;

Exceptional Durability: Sigmacover 350 boasts exceptional resistance to abrasion, impact, and chemical exposure, making it the ideal choice for protecting critical surfaces from wear and tear.

Corrosion Resistance: This advanced epoxy coating acts as a powerful barrier against corrosion, effectively preventing rust and degradation caused by moisture and harsh atmospheric conditions.

Versatile Application: Suitable for various substrates, including steel, concrete, and other metals, Sigmacover 350 ensures seamless coverage and adherence on a wide range of surfaces.

Rapid Curing: With a quick curing time, Sigmacover 350 minimizes downtime and allows for faster project completion, maximizing efficiency and productivity.

Environmentally Friendly: Committed to sustainability, Sigmacover 350 is designed with environmentally conscious materials, reducing its ecological impact while delivering top-notch performance.

Easy Application: Sigmacover 350 offers user-friendly application, making it convenient for both professionals and DIY enthusiasts to achieve a flawless finish.

Ideal Applications: Ideal for ships, offshore structures, and maritime equipment, providing robust protection against saltwater and extreme weather conditions. Perfect for industrial facilities, machinery, and equipment, guarding against chemical exposure, abrasion, and harsh manufacturing environments. Essential for bridges, pipelines, and other critical infrastructure projects, offering long-term protection against environmental factors.

Sigmacover 350 is trusted for its exceptional performance and reliability. Whether you need to safeguard marine assets, industrial machinery, or critical infrastructure, Sigmacover 350 delivers superior protection, ensuring your investments are shielded from the elements and preserving their value for years to come. Invest in Sigmacover 350 today and experience the ultimate in surface protection.

Recommended Substrate Conditions and Temperatures

Substrate Conditions

• Steel; blast cleaned to ISO-Sa2½ for excellent corrosion protection, blasting profile 40 – 70 µm (1.6 – 2.8 mils)
• Steel; blast cleaned to ISO-Sa2, blasting profile 40 – 70 µm (1.6 – 2.8 mils) or power tool cleaned to minimum ISO-St2 for good corrosion protection
• Coated steel; hydrojetted to VIS WJ2/3L
• Surface must be dry and free from any contamination
• Existing sound epoxy systems and most sound alkyd coating system; sufficiently roughened

Substrate Conditions of Concrete for Thinned Version

• Dried for at least 28 days in good ventilation conditions
• Moisture content should not exceed 4.5%
• Concrete must be sound, dry, free from laitance and any contamination
• Rough surface; eventually abraded by power tool or diamond abrading tool

Coated Concrete

• Existing sound coating systems; sufficiently roughened, dry and cleaned
• To ensure compatibility, rub the existing coating with a cloth with Xylene or MEK for 10 seconds, and remove existing coatings if dissolving occurs
• Rough surface; eventually abraded by power tool or diamond abrading tool

Substrate Temperature and Application Conditions

• Substrate temperature during application and curing should be above 5°C (41°F)
• Substrate temperature during application and curing should be at least 3°C (5°F) above dew point

Instructions For Use 

Mixing ratio by volume: base to hardener 80:20 (4:1) 

• The temperature of the mixed base and hardener should preferably be above 15°C (59°F), otherwise extra thinner may be required to obtain application viscosity
• Adding too much thinner results in reduced sag resistance
• Thinner should be added after mixing the components

Application

Air spray

Recommended thinner

THINNER 91-92

Volume of thinner

5 - 10%, depending on required thickness and application conditions

Nozzle orifice

1.8 – 2.0 mm (approx. 0.070 – 0.079 in)

Nozzle pressure

0.3 - 0.4 MPa (approx. 3 - 4 bar; 44 - 58 p.s.i.)

Airless spray

Recommended thinner

THINNER 91-92

Volume of thinner

0 - 5%, depending on required thickness and application conditions

Nozzle orifice

Approx. 0.48 – 0.53 mm (0.019 – 0.021 in)

Nozzle pressure

15.0 MPa (approx. 150 bar; 2176 p.s.i.)

Brush/roller

Recommended thinner

THINNER 91-92

Volume of thinner

0 – 5%

Note: 10 - 15% when applied as a primer direct to concrete

Cleaning solvent

THINNER 90-53