Delta T Marine Application Instructions
Spray Application Instructions
Equipment needed for Spray application:
- Use only Mascoat approved sprayers only - Airless spray system – min. 1.0 gallons per minute at 3000 psi. Recommended sprayer Graco Bulldog or equivalent. Make sure equipment is in tip-top condition prior to spraying. If seals or old or worn, replace prior to spraying Delta T Coating.
- 3/8” Spray Hose line only!
- Reversible nozzle with tip size .021” - .031”. Fan size depends on area to be sprayed.
- Graco CONTRACTOR GUN with 3/8” hose swivel. REMOVE filters in gun or pickup tube.
- ½” Sheet rock mud mixing paddle (blade style)*. Supplied with shipment.
- Pail opener and/or knife*
- Hopper or other 5 gallon pail
Access to water*If equipment cannot be readily available, please call Mascoat Products. We have the items that are designed for Delta T Coating application.
Please follow these directions closely. Failure to apply our coatings in conformance to these instructions will cause you time and application delays. We have developed these instructions over hundreds of applications, so let us please help you in yours.
Directions for Spray application of Delta T Insulating Coatings
- Upon receiving Delta T, please inspect physical appearance of container. Make sure that product is free of any punctures or tears. If punctures exist, please contact shipper or Advanced Coating Solutions.
- Open container with pail opener or other means.
- Separation of this coating is natural due to its high loading of insulating particles. It may be necessary to reagitate the coating. Use the mud mixing paddle provided or obtain one from a home improvement store. See our website for more details.
- Place feet on sides of pail to hold pail from spinning. Slowly turn drill motor on reverse setting only. Stir on reverse setting only! Reverse setting will insure that paddle will not scrape sides of pail and contaminate contents. Stir product until it resembles a milkshake like consistency (10-20 seconds) total. Do this in short 5-10 second blasts. Over mixing will destroy particles, thereby reducing insulating capabilities. Product should be free from any large particles.. Turning pails upside down 8 hours prior to application will make mixing easier.
- REMOVE ALL FILTERS FROM GUN AND SPRAYER. This is very important to make sure that insulation is not filtered. Flush all solvents from sprayer with water. Prime sprayer using water only with either gun removed from line or with orifice nozzle out of the spray gun. FLUSH 10-15 GALLONS OF FRESH WATER THROUGH SPRAYER TO INSURE REMOVAL OF ALL THINNERS OR FOREIGN DEBRIS. Delta T consistency requires peak performance of the seals in the pump unit. If seals are weakened or have developed small cracks, proper pressure is hard to achieve.
- Place pickup nozzle in product pail or hopper and prime product throughout sprayer. Prime without gun or orifice nozzle. When product consistency is thick like, stop sprayer and attach gun or orifice nozzle. This may take a moment, as the system will have to bleed until pressure is reduced. Place tip in reversible head, place reversible nozzle on gun and insert tip. (Tip size depends on area sprayed. Common tip size is 415” - 523”). Product is now ready for application to substrate. For the application on the stainless tank silos, a 517-519 tip should work well to give a nice even coat with proper flow control. Slight tip clogging is common as this product is high in solid content with large particle size.
- Use sample area to adjust sprayer pressure. With most large pneumatic sprayers, air pressure of 80-100 PSI is adequate if CFM is consistent. If CFM is reduced more pressure will be needed. Make sure to set pressure only high enough to stop fingering or keep pressure consistent. If pressure is not consistent then either there is a volume problem with the pump or not enough air supplied to the sprayer. It may take a minute to get the pressure right and achieve the spraying consistency.
- Spray product onto substrate in a methodical fashion. Remember that this is a coating, not paint. It is very important to insure an even coat throughout substrate.
- Drying times will be extended with high humidity or if colder conditions exist. Coating may be applied up to max of 25-26 wet mil layers. Usually four to six passes equals one full coat. The more coating the better the insulation. Normally dry times do not exceed one hour at 75°F ambient.
- For cold weather installation, lighter passes of 8-13 mils will expedite dry times. This will also insure a nice even coating. With lighter milage, the coating will dry more quickly. To test for proper dryness, place your thumb onto test area of the coating. Turn your thumb 90° and remove. If coating is left on your thumb, the coating is not fully dry. IT IS HIGHLY VERY IMPORTANT TO INSURE FULL DRYNESS PRIOR TO NEXT COAT!
- NOTE: One pass with gun is normally a 5-mil application on flat substrate (519 tip). In colder atmospheres (50-60 Degrees F.), initial coating should be no greater than 8-10 mils on verticals. Let product tack up prior to recoat. It is better to do two light coats on verticals than one heavy one.
- Coating should be measure with a dry mil gauge after each coat to insure proper thickness. Over milage in areas will not hurt or deter performance.
- Cleanup is simple. Wash sprayer and all tools with water. Overspray may be diminished insulating capabilities. Coat thickness should not exceed 20 mils in any one application. Let product dry between coats. Do not exceed 20-25 mils in any one application! Most surfaces should dry within one hour on cleaned with soap, water and a good deal of scrubbing. Remember to lubricate sprayer and use type of thinner or other means to insure spray system will not rust or clog.
- Touch up may be accomplished with small brush. To brush, make sure product is thoroughly mixed. Insert brush into water. Place brush into product and brush in one motion. Areas will slowly buildup over time. Be patient. Brushing is only recommended for small areas.