Devcon 11800 Underwater Repair Putty (UW)

Devcon 11800 Underwater Repair Putty (UW)

Devcon Underwater Repair Putty (UW) is a unique, non-rusting, high exothermic epoxy for repairing, patching, and rebuilding equipment in chronically wet environments - even underwater.

RECOMMENDED APPLICATIONS

• Repairing and fitting pipes, valves, pumps, tanks, and other equipment in marine environments, offshore drilling, water treatment plants, and paper and pulp mills.
• Repairing concrete pipes and vessels in wet environments
• Under water epoxy to repair metal part
• Pool & Marine underwater epoxy
• Repair parts with wet surface
• A 2 part epoxy to repair underwater

APPLICATION INFORMATION

What is the curing time for Devcon 11800 underwater epoxy.

A 12mm thick section of Devcon Epoxy will harden at 22oC in 4 hours. The material will be fully cured in 16 hours. The actual cure time of epoxy is determined by the mass used and the temperature at the time of repair.

SURFACE PREPARATION

Proper surface preparation is essential to a successful application. The following procedures should be considered for dry applications:

• All surfaces must be dry, clean, and rough.
• If the surface is oily or greasy use MEK, Acetone, IPA, or something similar to degrease the surface.
• Remove all paint, rust, and grime from the surface by abrasive blasting or other mechanical techniques.
• Aluminum repairs: Oxidation of aluminum surfaces will reduce the adhesion of epoxy to a surface. This film must be removed before repairing the surface, by mechanical means such as grit-blasting or chemical means.
• Provide a “profile” on the metal surface by roughening the surface. This should be done ideally by grit blasting (8-40 mesh grit), or by grinding with a coarse wheel or abrasive disc pad. An abrasive disc may be used provided the white metal is revealed. Do not ’feather edge’ epoxy materials. Epoxy material must be 'locked in’ by defined edges and a good 75-125 microns profile.
• Metal that has been handling seawater or other salt solutions should be grit blasted and high-pressure water blasted and left overnight to allow any salts in the metal to ’sweat’ to the surface. Repeat blasting may be required to ’sweat out’ all the soluble salts. A test for chloride contamination should be performed prior to any epoxy application. The maximum soluble salts left on the substrate should be no more than 40 p.p.m. (parts per million).
• Chemical cleaning with MEK, Acetone, IPA, or similar should follow all abrasive preparation. This will help to remove all traces of sandblasting, grit, oil, grease, dust, or other foreign substances.
• Under cold working conditions, heating the repair area to 30ºC-40ºC immediately before applying any of Devcon Epoxies is recommended. This procedure dries off any moisture, contamination, or solvents and assists the epoxy in achieving maximum adhesion to the substrate.
• Always try to make the repair as soon as possible after cleaning the substrate, to avoid oxidation or flash rusting. If this is not practical, a general application of FL-10 Primer will keep metal surfaces from flash rusting.

For underwater or submerged repairs consider the following:

• Remove all dirt, barnacles, flaking paint, and algae/seaweed from the substrate.
• Wipe the area with a clean cloth to remove any film on the surface. You cannot degrease underwater, but wiping and turning a clean cloth will often remove any film on the surface.
• Abrade the surface if possible (use mechanical means or a file to accomplish this).
• The oxidation can be removed by mechanical means such as water, grit-blasting, or chemical means.
• Make the repair as soon as possible to avoid surface contamination.

MIXING

Wet Surface Repair Putty is formulated to be a dense mix that can be applied easily to overhead and vertical surfaces without running or sagging. Add the hardener to the resin and mix thoroughly on a mixing board using a spatula.
Do not mix in the containers.

APPLICATION

For best results, the product should be kept and applied at room temperature. Wet Surface Repair Putty can be applied when temperatures are between 10ºC and 30ºC. When temperatures are below 22ºC cure and pot life will be longer, and above room temperature, cure and pot life will be shorter. Wet Surface Repair Putty over the prepared surface with a putty knife. Press firmly to ensure maximum surface contact and avoid trapping air. To bridge large gaps or holes use fibreglass, expanded metal or other mechanical fasteners. Apply a minimum of 1.6mm.

SHELF LIFE & STORAGE

A shelf life of 3 years from date of manufacture can be expected when stored at room temperature (22ºC) in their original containers.

PRECAUTION

For complete safety and handling information, please refer, to Material Safety Data Sheets (MSDS) prior to using this product.

WARRANTY

ITW Performance Polymers will replace any material found to be defective. As storage, handling, and application of this material is beyond our control we can accept no liability for the results obtained.
IMPA 812246
 
These are the frequently asked questions :

1. Will epoxy resin cure underwater?
2. Can I use epoxy putty underwater?
3. What is epoxy glue used for?
4. Which epoxy can I use underwater?
5. How long does it take to cure for devcon 11800 underwater epoxy?

Feel free to contact us if there are any queries above or other questions we will be glad to assist you.
Demo Practices are available too, we have our professional to guide you or recommend proper application on the products.
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