Carboguard 635 - Product Data Sheet

Nov 2, 2026

Uploaded by acoobca

Carboguard® 635 is an all-purpose, immersion-grade epoxy coating formulated for low-temperature cure, strong surface tolerance, and excellent corrosion protection. It supports direct-to-metal corrosion resistant priming, intermediate coating, or use as a finish coat, and can be applied for atmospheric exposure or continuous underwater curing. The datasheet provides coating specifications, primer dry film thickness and solids, theoretical coverage, VOC and temperature resistance limits, compatible topcoats, and detailed substrate preparation, mixing/thinning ratios, pot life, and application equipment and conditions.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages5

Reading Time13 min

AccessFree to download

Selection & Specification Data

Features and Product Attributes

Color, Gloss, Film Thickness, Solids and Coverage

VOC Values and Dry Temperature Resistance

Substrates & Surface Preparation

General Substrate Types

Atmospheric vs Immersion Cleanliness Requirements

Mixing & Thinning

Mixing Instructions and Thinning Ratios

Pot Life

Application Equipment Guidelines

Conventional Spray

Airless Spray

Brush & Roller

Application Conditions

Minimum and Maximum Environmental Limits

Carboguard® 635 PRODUCT DATA SHEET SELECTION & SPECIFICATION DATA Generic Type Description Features Color Gloss Primer Dry Film Thickness Solids Content Theoretical Coverage Rate VOC Values Dry Temp. Resistance Limitations Topcoats Epoxy Phenalkamine An all-purpose immersion-grade epoxy that has a variety of attributes including low-temperature cure, surface tolerance, fast recoat times, moisture tolerance during application and cure, and excellent corrosion protection. Can be used direct to metal as a corrosion resistant primer, an intermediate coating over itself and many other primers, and can be used as a finish coat. Suitable for both maintenance and new construction projects due to its excellent surface wetting characteristics and quick cure for handling. May also be used for immersion in fresh or salt water (marine) exposures. Meets IMO performance for ballast tanks for marine vessels. • Low temperature cure (20°F) • Excellent corrosion protection • Excellent application characteristics • Fast recoat times • Moisture tolerance during application • Continues to cure underwater • Extended recoat window for atmospheric exposures (6 months for most topcoats) • Meets IMO Performance Standard for Protective Coatings MSC.215(82): 2006 for sea water ballast tanks 0500 (Red), 0200 (Beige), 0700 (Gray), 0800 (White), 0900 (Black) Limited other colors may be available. Contact your Carboline Representative for availability. Satin Self-Priming 4-6 mils (102-152 microns) per coat By Volume 65% +/-2% 1043 ft²/gal at 1.0 mils (25.6 m²/l at 25 microns) 261 ft²/gal at 4.0 mils (6.4 m²/l at 100 microns) 174 ft²/gal at 6.0 mils (4.3 m²/l at 150 microns) Allow for loss in mixing and application. As Supplied : 2.47 lbs/gal (296 g/l mixed) Thinner 76 : Thinned 8%(10 .5 oz/gal): 2.79 lbs/gal (337 g/l) Thinner 248 : Thinned 8%(10 .5 oz/gal): 2.79 lbs/gal (337 g/l) Thinner 38 : Thinned 8%(10 .5 oz/gal): 2.79 lbs/gal (337 g/l) These are nominal values and may vary with color. Continuous: 180°F (82°C) Non-Continuous: 220°F (104°C) Epoxies may lose gloss, discolor and chalk when exposed to sunlight. May be coated with acrylics, epoxies, alkyds, polyurethanes, polyaspartics or siloxanes depending on exposure and need. Consult the topcoat's product data sheet for compatibility. Carboguard® 635 PRODUCT DATA SHEET | SUBSTRATES & SURFACE PREPARATION | | | --- | --- | | General
Steel
Concrete or CMU
Non-Ferrous Metals | Remove any oil or grease from surface to be coated with clean rags soaked in Carboline Thinner \#2 or toluol.
Atmospheric Exposure: For optimal performance: Hand Tool or Power Tool clean in accordance with SSPC-SP 2, SSPC-SP 3, or SSPC-SP11 to produce a rust-scale free surface. For maximum performance: SSPC-SP 6 (or greater) with a 1½-3 mil (40-75 micron) blast profile. Immersion Service: Minimum near white metal cleanliness in accordance with SSPC-SP10 .
When using under fireproofing products, defer to the primer surface preparation requirements in the product data sheet of the fireproofing product.
Remove all loose, unsound concrete. Remove all oils or other non-compatible sealers or treatments. Do not apply coating unless the concrete has cured at least 28 days @ 70 F (21 C) and 50% relative humidity or equivalent.
Surface profile should be a dense angular 1.5-3 mils and is best achieved through abrasive blasting in accordance with SSPC-SP16 for atmospheric exposure, or SSPC-SP17 for immersion environments. | | MIXING & THINNING | | | Mixing
Thinning
Ratio
Pot Life | Mix separately, then combine and mix until homogenous.
Preferred Thinner Uses and Application:
For atmospheric applications thin up to 8% by volume with Carboline Thinner 248, Thinner 10 or Thinner 76, or 8% by volume per with Thinner 33 for brush and roller.
Alternate Compatible Thinners for Atmospheric Service:
Carboline Thinner 2, 10,

FAQs

What is Carboguard® 635 typically used for?

It is designed for immersion-grade epoxy performance, serving as a corrosion resistant primer, intermediate coating, or finish coat. It is suitable for maintenance and new construction, including fresh or salt water (marine) immersion.

How should the coating surface be prepared before application?

Remove oil and grease, and clean the surface to achieve rust-scale free conditions. For atmospheric exposure, follow SSPC-SP 2/SP 3/SP 11 for optimal performance or SSPC-SP 6 or greater with a specified blast profile for maximum performance; for immersion, use near-white metal cleanliness per SSPC-SP 10.

What are the mixing, thinning, and pot life guidelines?

Mix separately, then combine and mix until homogeneous. Thin up to 8% by volume for atmospheric applications with specified Carboline thinners, and use a 4:1 (Part A: Part B) ratio; pot life is about 3 hours at 75°F (24°C) and less at higher temperatures.

Nov 2, 2026

Uploaded by acoobca