PPG SigmaGlide 790, a two-component, silicone-based tiecoat for fouling release system. SigmaGlide 790 is an adhesion-promoting coating for SigmaGlide finishes to be applied on top of specific systems, for use at new-building or maintenance.

Features & Benefits

• Adhesion-promoting coating for SigmaGlide finishes to be applied on top of specific systems
• For use at new-building or maintenance
• Available in a 20 litre tin in Medium Grey (Sigma 5201)
• See below for more information on surface preparation, application details and curing times

Product Data

Two-component, silicone-based tiecoat for fouling release system

Notes:

• Refer below for more details on spreading rate and film thickness, overcoating intervals and curing times

Surface Preparation

Recommended Substrate Conditions and Temperatures

Substrate conditions

• Previous coat (specific epoxy) must be dry and free from any contamination and within overcoating time

Substrate Temperature & Application Conditions

• Substrate temperature during application and curing should be above 10°C (50°F)
• Substrate temperature during application and curing should be at least 3°C (5°F) above dew point
• Relative humidity during application and curing should be between 40% and 85%

System Specification

• In order to achieve optimal performance from the SIGMAGLIDE system, the individual SIGMAGLIDE products must be applied in strict accordance with the minimum specified dry film thickness and also with the PPG Protective & Marine Coatings SIGMAGLIDE General Working Procedure.
• Please consult PPG Protective & Marine Coatings for details of the application procedure, which has been prepared to the best of our knowledge and in accordance with worldwide application best practices in order to ensure optimal workmanship and application results

Application

Mixing ratio by volume: base to hardener 95:5 (19:1)

Instructions for Use

• Open drum just before use
• Stir base well before use for 5 minutes
• Add hardener to the base and stir well again for at least 5 minutes
• No thinner should be added
• All equipment must be thoroughly cleaned prior to use and before re-use with other materials, to prevent contamination
• Care must be taken to ensure that overspray of SIGMAGLIDE 790 does not contaminate adjacent areas

Airless Spray

Recommended thinner

• No thinner should be added

Nozzle angle

• 35° – 60°, depending on nozzle orifice

Nozzle orifice

• Approx. 0.43 – 0.53 mm (0.017 – 0.021 in)

Nozzle pressure

• 13.0 - 19.0 MPa (approx. 130 - 190 bar; 1886 - 2756 p.s.i.)

Brush/roller

For small areas only (touch up and repair)

Cleaning Solvent

• THINNER 90-83 or 50/50 mixture of THINNER 21-06 and THINNER 50-02

Note:

• The used cleaning solvent must not be allowed to contaminate other paints

Overcoating interval for SIGMASHIELD 610 for DFT up to 150 µm (6.0 mils)

Overcoating interval for SIGMASHIELD 620 for DFT up to 150 µm (6.0 mils)

Notes:

• Note: At temperatures between 10°C (50°C) and 20°C (68°F) SIGMASHIELD 610 should be specified. At temperatures above 20°C (68°C) SIGMASHIELD 620 should be specified.

Overcoating interval for SIGMAGLIDE 790 for DFT up to 150 µm (6.0 mils)

Notes:

• Surface should be dry and free from any contamination
• Relative humidity should be above 40%

Pot life (at application viscosity)

Safety Precautions

• For paint and recommended thinners, see information sheets information sheet 1430, information sheet 1431 and the relevant Material Safety Data Sheets in the attachments section above
• This is a solvent-borne paint and care should be taken to avoid inhalation of spray mist or vapor, as well as contact between the wet paint and exposed skin or eyes

References

• Explanation to product data sheets (information sheet 1411)
• Safety Indicators (information sheet 1430)
• Safety in Confined Space and Health Safety, Explosion Hazard - Toxic Hazard (information sheet 1431)