Corroseal® Product Data
Product Identification
Corroseal® Rust Converting Primer (CS100)
Products
SKU# 82320 - 1 quart jug
SKU# 82331 - 1 gallon jug
SKU# 82335 - 5 gallon pail
SKU# 82320 - 52 gallon drum
Product Description
Corroseal® is a water based rust converter combined with a non pigmented high quality latex metal primer.
The converter segments turn rust into a barrier layer of black non rusting magnetite. The primer acts as a bonding
agent for oil-based intermediate and finish coatings of epoxy, enamel, acrylic, polyurethane and moisture-cured
urethane, and with water based coatings not subject to tannin staining. Water based coatings may require an oil
based stain blocker as an intermediate application. Corroseal® is non flammable and non corrosive.
DOT shipping classification 55
Universal Customs Code 3810.10
Basic Use
Corroseal® is recommended for use on rusted or partially rusted steel surfaces as a rust
converter / paint primer, and as an etch primer on aged tight paint of any color, and as a sealer on non ferrous
metals such as some aluminum, copper, and brass.
- Protects against future rusting
- Can be used on welds
- Eliminates need to mechanically blast to white metal in many instances
- Not recommended for outside hull underwater applications
Packaging
Corroseal® is packaged in quarts, gallons, five gallon buckets and 52 gallon drums.
Thinning
DO NOT THIN
Coverage
The actual surface condition and thickness of rust will dictate the amount of Corroseal® needed.
For estimating purposes, 1 gallon of Corroseal® covers approximately 200 square feet.
Cautions
Do not use in direct contact with food or potable water. Refer to the Corroseal MSDS and label for precautionary information.
Surface Preparation
Remove all salt, loose rust, mill scale, dirt, grease, oil, old paint and other deposits.
Apply solvent cleaner according to manufacturer's directions and rinse. A residue free surface is essential
before coating application begins. The surface should be a CLEAN, TIGHT RUST.
Notes
Do NOT use Acetone or dishwashing detergent to clean rusted steel surface. When black color appears,
rust conversion has started. If gray areas appear apply more Corroseal® while surface is tacky.
Application
Brush, roll or spray undiluted Corroseal® in a heavy white coat with no surface show through at 8-10 mils
wet film thickness. When black color appears, rust conversion has started. Wait at least 24 hours before
top coating. A second coat of Corroseal® may be applied while first coat is still tacky. Apply all topcoats
according to manufacturer’s specifications. Use oil based marine or industrial coatings for best weather protection.
Application Conditions
Keep from freezing, Apply at 45°F and rising and below 100°F(7°-37°C) and falling.
Test over zinc based coatings as some galvanizing reject Corroseal® chemistry. Do not apply onto zinc chromate
or phosphates, lead, magnesium, copper powder, graphite, borate pigments. Chromate-treated (pickled) prefabricated
steel building cold rolled perlins and gutters are to remain dry until top coated. Cold rolled steel can require
abrading to anchor profile and degrease.
Application Method
Brush roll or spray undiluted Corroseal® in a heavy white coat with no surface show through
at 8-10 mils wet film thickness.
Limitations
Waterborne topcoats subject to tannin staining must be tested 48-60 hours before use. If tannin staining occurs, apply oil based stain blocker or apply oil based topcoat. Always prepare a test patch to ensure compatibility with substrate and follow-on coatings.
Dry time
Dry time to re-coat
Wait at least 24 hours to top coat.
Technical Services
Technical advice is available by calling Corroseal® at 1-800-237-1573 or email inquiries to info@corroseal.com. Visit www.corroseal.com for more information. Made in the USA by Rodda Paint Company, Portland Oregon.