CONDENSATION – GENERAL – For Surfaces Operating Between 43o F and 100o F. All surfaces must be clean, dry and free of condensation prior to application of TEMP-COAT®.
Condensation is one of the most expensive problem facing industry today. We are not certain that we have all the answers and the factors which influence condensation Copyright 1999, © Copyright 2002, © Copyright 2003 34 create new challenges daily. As of the time of this writing we have resolved every known circumstance leading to chilled based condensation, meaning a supply of chilled air or water making contact through a metal sub-straight with warm air as the opposing force.
In some instances things that appear to be condensation may not be condensation at all but rather a source of moisture affecting a given space which is not properly insulated. Be certain in making a claim that you can repair a problem, that you have first defined that problem.
Common formations of condensation which we work with constantly are condensation:
• Between Pipe and Conventional Insulation.
• On Metal Deck Floors with varying temperatures on ether side of the floor.
• Freon and Oxygen lines.
• Chilled Water Lines, uninsulated.
• Air Conditioning Duct Work.
• Air Vents.
Condensation is a viscous source of Rot and Degradation to Metal. In Naval Vessels and in maritime situations, it breeds illness causing bacteria and harbors rats, roaches and other germ carrying pests. Condensation provides the atmosphere for a catastrophe and the conventional insulation creates the breeding ground for continuing and expanding the problem. TEMP-COAT® Brand Products not only insulates differently, they also either completely stops condensation or at very least, move the moisture away from the metal surface and causes the moisture to form on the outer surface of our product preventing degradation.
DO NOT FIGURE A JOB TO STOP CONDENSATION UNLESS YOU ADVISE THE CLIENT IT MAY TAKE AS MUCH AS 250 MILS OR MORE (250/1000 INCH) TO RESOLVE THE PROBLEM.
250 mils is roughly a 1/4 inch thickness of product. On air conditioning duct work we have found that we can do a better job with less product if we can reach into the duct and coat it from the inside. The caution here is that on elbows or on any turns where pressured cold air hits a flat surface and is diverted, must be treated with much more product to stop condensation.
Surface treatment for condensation requires working with heat or cold to stop the formation of moisture long enough to cause TEMP-COAT® to adhere to the surface and dry. Most often heat lamps can be used to dry the base coat and when that coat is dry, application of subsequent coats are much easier and faster. Less condensation, less drying time.
ALL COATS MUST BE COMPLETELY DRY BEFORE THE NEXT COAT IS APPLIED. __(see pg 3)
Thicker coats can be applied but longer drying must be allowed.
On Floors or Ceilings and large flat areas, most often a blanket on the opposing Copyright 1999, © Copyright 2002, © Copyright 2003 35 surface can adjust the temperatures and stop condensation long enough to apply TEMPCOAT ®. The same is true for duct work, laying a blanket, cardboard, furniture pad or slab of TEMP-COAT® inside of the vent will direct the chilled air away from the surface to be treated and the process of application can begin.
Air conditioning vents can be treated by spraying or applying TEMP-COAT® to the back side of the vent regulator creating a barrier between cold and heat hence reducing or resolving the problem.
Choice of Quik-Gun* air assisted spray, airless spray or brush is a matter of space and conditions. TEMP-COAT® should be applied in even thin coats of 20 (+-) mils (20/1000 of an inch) allowing to dry thoroughly between coats. __(see pg 3)
Thicker coats can be applied but longer drying must be allowed.
Condensation problems are resolved on a trial and error basis. Be certain to allow your bid specification to reflect the need for change in order to beat this problem. The air assisted Quik-Gun eliminates a major portion of over-spray, can get into tighter spaces, is faster and provides a better finish than brush applications. (see Quik-Gun information on page 25).
Suggested Applications of Insulated Spaces
Non A/C Side
40 – 50 mils
50 – 60 mils
60 – 70 mils
Note: Product should be applied thicker where vent outlets blow directly on the surface which is condensing.
All surfaces must be clean, dry and free of condensation prior to application of TEMP-COAT®. Safety First BOILERS
TEMP-COAT® is a suitable insulation for boilers and other similar heat gathering and containment vessels. TEMP-COAT® has been used widely in the Tire Manufacturing Industry on molds and in industries which use heat and steam presses. It’s function here is to gather more heat, protect personnel and/or cause better operating conditions for production. Test the surface to determine actual operating conditions prior to installation. Always consult a plant engineer to determine maximum operating temperatures to assure Copyright 1999, © Copyright 2002, © Copyright 2003 36 that TEMP-COAT® falls within the bounds of fulfilling operating requirements.
On pipes that are heated, drying is almost instantaneous. Checking for movement and dryness by touch to assure firmness is an adequate test to allow proceeding with a subsequent coat. If coats are applied too quickly, cracking can occur. Choice of Quik-Gun* air assisted spray, airless spray or brush is a matter of space and conditions. TEMP-COAT® should be applied in even thin coats, not to exceed 20 (+/-) mils (20/1000 of an inch) allowing to dry thoroughly between coats. __(see pg 3)
On galvanized and ferrous metal surfaces a primer may be required and that product choice should rest with the plant management, customer.
We do not offer recommendations for high heat primers.
• To begin, mist or brush a very thin film of TEMP-COAT® on the clean, dry, scale free surface. This film should be extremely thin and act as an acrylic base for subsequent coats. This first coat, on a hot boiler will dry instantly and on a cold dry boiler will cure in 10 to 15 minutes.
• You now have a sufficient base to begin installation at a rate of 20 (+-) mils at a time. Again, on hot boilers your work will dry instantly.
• Repeat the process until the desired thickness is achieved. The installation instructions offers a suggested thickness table for average to worst conditions.
Less product may be acceptable in well ventilated areas where maximum insulation is not required. On larger hot vessels in order to protect the insulation from cracking, several procedures may be used.
• Apply required thickness. When this is achieved and dry, create a sleeve or coat of woven Nomex or fiberglass saturated in TEMP-COAT® as a finished coat.
• Use fiberglass mesh in final coats and center coat creating a strong membrane within the product to support the insulating cast.
• Use chopped shredded fiberglass fibers in the TEMP-COAT® as a fiber binder to keep the product in place around the boiler or item to be insulated.
IT IS IMPORTANT TO NOTE THAT ALL FIBERGLASS MUST BE COVERED COMPLETELY OR THE FIBERGLASS CLOTH WILL ABSORB MOISTURE.
TEMP-COAT® does not require jacketing.
TEMP-COAT® may be tinted, using a latex tint, most light to medium colors for color identification.
* The air assisted Quik-Gun eliminates a major portion of over-spray, can get into tighter spaces, is faster and provides a better finish than brush applications. (see Quik-Gun information) Copyright 1999, © Copyright 2002, © Copyright 2003 37
To: Jim Willis FILE NO: x-17-018
Date: September 9, 1998
Re; Anti - Sweat and Spray - on Insulation
LHD-6 was experiencing extreme condensation problems because of excessive heat and humidity. The Anti - Sweat coating system failed and water from sweating bulkheads and ventilation systems became a serious problem. The Anti – Sweat system Ingalls Paint Department applies will not stand this type of weather conditions.
A vendor was contracted by the U.S. Navy and the Program office by the name of Randy Lorio d.b.a. (Temp - Coat Inc.) (see Attached) to stop the excessive sweating in the following spaces: 03-61-I-Q (the ramp from main deck to flight deck) on the bulk head and in the overhead with a result of all sweating stopped and a very good satin smooth appearance, 01-71-2-L (Medical Processing) & 01-81-6-L (Clinical Lab) on the Vent Duct sweating and dripping on Medical equipment with a result of all condensation stopped and temperature in the compartment balancing out. Note: By applying Temp-Coat the adjoining spaces also stopped sweating and the humidity level stabilized.
You need to pursue this product for other programs in way of Anti - Sweat and spray - on Insulation,