Mascoat Marine-DTM is a specialty coating for marine applications that is exclusively designed for thermal insulating and anti condensation protection commonly found in the harsh marine environment. Below are some commonly asked questions about Mascoat Marine-DTM and the application process.

Where is this coating used and why?
Mascoat Marine-DTM is used to replace or enhance conventional marine thermal insulation systems. It is designed to reduce or completely prevent condensation, prevent radiant heat gain, and act as a thermal barrier. It is applied in multiple coats at 20 mils per coat, and the final thickness is dependent on the specific application parameters.
How much coating is needed for shipboard thermal/condensation protection?
Mascoat Marine-DTM is applied in multiple coats at a thickness of 20 mils (0.5 mm) per coat, and the final thickness is dependent on the specific application parameters. Coating thickness rarely surpasses 60-80 mils (1.5-2.0 mm). Please contact your Mascoat representative to discuss your particular application.
Is the coating considered an anti-corrosion coating?
Technically, since the coating is water-based, we do not recommend it being used on bare steel without a protective coating (primer.) However, due to the thick nature of Mascoat Marine-DTM, a protective layer is inherent in the coating. Since the coating is applied on vessels up to 80 mils (2.0mm), it provides a substantial protective layer that is very flexible. This means that our coating can expand and contract with the vessel without worry of de-bonding even at 8-10 times the thickness of conventional protective coatings.
What about the maximum and minimum temperatures that Mascoat is capable of?
Mascoat Marine-DTM has a sustained workload upper limitation of 350?F (176?C.) There is not lower range for adhesion as the coating has been tested to -60?F (-51?C), however, the coating’s effectiveness may be significantly reduced at lower operating temperatures.
What about using the coating for anti-condensation applications?
By applying a minimum of 40 mils (1.0 mm), the coating reduces or eliminates most condensation issues. This is the main purpose of the coating, though reducing radiant heat gain from the sun is another beneficial application.
What about expansion and contraction of the vessel?
This coating is designed to have excellent elongation with the ability to easily withstand regular expansion and contraction.
What is the finish like after application?
The finish is a semi-smooth, matte texture depending on which application methods are used.
Do any materials degrade the coating?
Yes. It can be removed with a wire wheel, sanding, blasting, etc. Make sure to remove the coating on unwanted surfaces with a rag and water quickly as the coating dries very fast.
Does the coating need a topcoat?
Prolonged immersion in acid will degrade the coating. Diesel, gas, and oil do not degrade the coating if spilled. Cleaning can be accomplished with soap and water via pressure wash. If you are worried about a harmful substance constantly coming into contact with the coating, we recommend a topcoat.
Will it adhere to stainless or aluminum?
It adheres directly to aluminum and stainless without the need for a primer, though it is recommended that the surface be clean and free from debris.
What colors does it come in?
For a list of standard colors, please consult the “Product Colors” document. Custom colors are available with minimum quantity requirements.
What is the application procedure?
Spray application is the preferred method using an airless sprayer. Full application instructions can be found on the Mascoat Marine product page. It is important to follow these instructions thoroughly to ensure best performance.
How thick can we apply the coating?
We have found it best to try to keep a wet film thickness of no greater than 20-24 mils per coat. The reason for this is to avoid entrapping moisture by over-applying the coating. When building coat thickness, it is important to make sure that the coating is dry to the touch prior to the next application. Please consult the drying schedule for appropriate dry times based on temperature and humidity.
How do we expedite the dry times?
The best way to achieve faster dry times is to force ventilation into and out of the space where the coating is being applied. Forced heating is not recommended. Also, make sure that the coating thickness does not exceed 20-24 mils wet, and that ambient temperatures are warm. This means that lower ambient temperatures may require space/substrate heating prior to application. We recommend substrate or ambient temps of at least 60?F (15?) during spray applications.
Is it a single component coating?
The product is a one-part system and has no catalysts or pot life.
Should we use primers?
The only substrate that requires a primer is carbon steel. A list of primers that have been subject to compatibility tests with our products can be obtained from your Mascoat Representative. If you prefer to use a primer that has not been tested, Mascoat can run compatibility tests.
What happens if we apply the coating directly to steel?
We do not recommend this procedure, as flash rusting will develop on steel. We strongly recommend that a primer is applied prior to application of Mascoat Marine-DTM on steel surfaces.
Does the coating get dirty?
How do we clean it?Since the coating has a somewhat porous structure, it will get dirty if left exposed over time. It can easily be cleaned with water and scrubbing or pressure wash.
What about touch ups and can we remove the coating easily?
If the coating is dried and cured, it can be removed with a wire wheel, sanding, blasting, etc. During application while the coating is still wet, make sure to remove the coating on unwanted surfaces with a rag and water quickly, as the coating dries very fast.
What about the shelf life?
Due to the binder systems used, the shelf life is 18 months from the manufacture date. The important thing is to make sure that the coating is stored in a location that is out of direct sunlight and not subject to freezing conditions.
What about topcoats?
Is this important in high traffic or abusive areas?Due to the coating’s acrylic structure, we recommend a high-grade acrylic as a topcoat in high traffic or abusive areas. Since our coating will have a mechanical bond with other coatings, there are no problems using solvent-based systems as a topcoat. To date, we have used epoxies, urethanes, and other various systems without any problem. If the coating is dirty prior to topcoating, a pressure wash may be necessary.
Are there any harmful Volatile Organic Compounds to be concerned with?
No. The coating is environmentally friendly and cleanup concerns are kept to a minimum.
Is Personnel Protection Equipment (PPE) needed when handling the coating?
Mascoat Marine-DTM is considered a non-hazardous coating. In small confined areas, we recommend a respirator and forced ventilation. Of course, protective clothing and OSHA standards should be followed at all times. In unconfined areas, a simple dust mask will suffice. Mascoat Marine-DTM has a slight ammonia odor similar to acrylic house paint.
Is it flammable and can we do hot work while applying the coating?
Since Mascoat Marine-DTM is non-combustible and has a very low flame spread, the coating can be sprayed while hot work is ongoing. This allows for multiple crews to work in the same space.
What about the weight of the coating after it is applied?
At 40 mils of coating applied, Mascoat Marine-DTM weighs less than 0.08 lbs a square foot. Conventional insulation systems have been shown to weigh 0.30 to 1.0 lbs a square foot.
Does the coating need special equipment for application?
Mascoat Marine-DTM can be applied by 2 means: an airless sprayer, or our small application sprayer.
How long does it take to dry?
Please consult the drying time chart found on our technical data sheet.
How long does it take to cure?
Cure times depend on ambient and humidity conditions. Normally the coating will fully cure in 72 hrs. We recommend letting the coating fully cure if a topcoat is needed.
What about overspray or dry fall?
If using airless equipment, overspray is kept to a minimum. Anything in a 3-5’ (0.9-1.5m) area away from the spray gun is considered dry fall. The dry fall is a dust that can be swept up, vacuumed, or washed away easily.
What about storing procedures?
We recommend keeping the coating in a heated warehouse if conditions are below freezing. If product freezes in the pail, it destroys the coating. If left outside, we recommend keeping the product out of direct sunlight. Otherwise, the Mascoat Marine-DTM can be stored without any special accommodations.
How can I purchase Marine-DTM?
To purchase Marine-DTM, please fill out our Request More Information form. All Mascoat coatings are sold in 5-gallon pails.