Carboguard 690 GF - Product Data Sheet - Selection & Specification Data - Glass-Filled Epoxy

Nov 2, 2026

Carboguard 690 GF is a high-performance, glass-flake reinforced, cold-cure epoxy coating designed for strong film integrity and resistance in water, salt water, and wastewater exposure. It provides high solids and low VOC, high-build application up to 20 mils in a single coat, tolerates moisture during application, and continues to cure underwater. The sheet details color options, primer, coverage and film thickness targets, temperature resistance, mixing ratios for a 3-component kit, pot life, equipment guidance, surface preparation requirements, and application condition limits.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages4

Reading Time10 min

AccessFree to download

Limitations

Substrates & Surface Preparation

Mixing & Thinning

Application Equipment Guidelines

Application Conditions

Carboguard 690 GF PRODUCT DATA SHEET SELECTION & SPECIFICATION DATA Generic Type Description Features Color Finish Primer Dry Film Thickness Solids Content Theoretical Coverage Rate Severe Exposures VOC Values Dry Temp. Resistance Glass filled epoxy High performance, glass-flake filled, cold cure epoxy having excellent film strength and resistance to water, salt water and wastewater exposures. This coating exhibits outstanding moisture tolerance during application, low temperature cure capability, and very fast cure response for quick return to service. Glass flake reinforcement enhances film strength, impact resistance and barrier properties. Can be used on a variety of surfaces including structural steel, piping, pilings, ships, offshore structures and other equipment exposed to industrial or marine environments. It can also be used in immersion service for salt water, process water (non-potable) and waste water treatment projects. • High solids, low VOC • High build (20+ mils) • Low temperature cure (20°F) • Excellent moisture tolerance during application • Continues to cure underwater • Fast cure response • Excellent physical and barrier properties S800 (White), C705 (Light Grey) Other colors may be available on request. Contact your Carboline Representative for availability. Semi-Gloss Self-Priming or epoxies 10-15 mils (254-381 microns) per coat Can be applied up to 20 mils (400 microns) in a single coat-see Limitations section. Consult Technical Service for thicker films. By Volume 82% +/-2% 1315 ft²/gal at 1.0 mils (32.3 m²/l at 25 microns) 132 ft²/gal at 10.0 mils (3.2 m²/l at 250 microns) 88 ft²/gal at 15.0 mils (2.2 m²/l at 375 microns) Allow for loss in mixing and application. Under Insulation temperature resistance: Continuous: 300°F (149°C) Non-Continuous: 350°F (177°C) Discoloration occurs above 200°F (93°C) but does not affect performance. As Supplied : 1.3 lbs/gal (155 g/l) mixed Thinner 2 : 16 oz/gal 2.06 lbs/gal (248 g/l) These are nominal values and may vary with color. Continuous: 300°F (149°C) Non-Continuous: 350°F (177°C) Discoloration occurs above 200°F (93°C) but does not affect performance. Carboguard 690 GF PRODUCT DATA SHEET | SELECTION & SPECIFICATION DATA | | | --- | --- | | Limitations | • Epoxies may lose gloss, discolor and chalk when exposed to sunlight.
• Discoloration is more pronounced with this product.
• For immersion projects use only factory made material in special colors.
• This product has the ability to be applied over damp or even wet substrates. Remove excess water by blowing down the surface and apply in multiple coats to achieve desired film thickness.
• Brush or roller, and multiple coats are preferred over wet substrates. | | SUBSTRATES & SURFACE PREPARATION | | | General
Steel
Concrete or CMU | Remove any oil or grease from surface to be coated with clean rags soaked in Carboline Thinner \#2, or toluol.
Immersion: SSPC-SP10; Surface Profile: 2.0-4.0 mils (50-100 microns) (See Limitations) Non-Immersion: SSPC-SP6; Surface Profile: 1.5-3.0 mils (38-75 microns) In certain situations SSPC-SP3 is acceptable for thicknesses up to 10 mils (250 microns)
Do not apply coating unless concrete has cured at least 28 days @ 70°F (21°C) and 50% Relative humidity or equivalent. Clean and dry; remove all loose, unsound concrete. Consult Carboline Technical Service for more specific recommendations. | | MIXING & THINNING | | | Mixing
Pot Life | • This is a 3-component kit. Mix liquid components separately, then combine and mix in the following proportions (4:1 ratio) . Slowly add Glass Flake additive while mixing.
• 1 Gal. Kit
• Part A: 0.8 gallon
• Part B: 0.2 gallon
• Glass Flake Additive: 1.8 lbs
• Yield: 1.1 Gallons
• 5 Gal. Kit
• Part A: 4 gallon
• Part B: 1 gallon
• Glass Flake Additive: 9 lbs
• Yield: 5.5 Gallons
• Thin up to 12.5%

FAQs

What surfaces can Carboguard 690 GF be applied to?

It can be used on structural steel, piping, pilings, ships, offshore structures, and other equipment in industrial or marine environments. It may also be used for immersion service in salt water, process water (non-potable), and waste water treatment projects.

What are the mixing proportions and kit components for Carboguard 690 GF?

It is a 3-component kit. Mix liquid components separately, then combine at a 4:1 ratio, slowly adding the glass flake additive during mixing. Example ratios are 0.8 gallon Part A, 0.2 gallon Part B, and 1.8 lbs glass flake for a 1-gallon kit.

What are the key application limitations related to temperature and recoat conditions?

Epoxies may lose gloss, discolor, and chalk when exposed to sunlight, with discoloration more pronounced for this product. Discoloration above 200°F (93°C) does not affect performance. For concrete, application requires curing of at least 28 days at 70°F (21°C) with 50% relative humidity or equivalent.

Nov 2, 2026

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