Tech Tip – Ever Break a Drillbit in a Mixing Chamber???
Often times while applying spray foam, hardened material gets stuck in the mixing chamber that the purge-air just won’t blow out; in most cases this happens while applying closed cell foams. When hardened material is noticed or the pattern from...
Tech Tip – Graco Fusion AP Mixing Chambers
Graco Fusion AP mixing chambers canbe damaged or broken during foam processing. The sprayer should focus on two areas or the gun if the mixing chamber breaks. 1. Make sure the air cap is installed correctly. The front of the...
Tech Tip – Protecting Your Hose From the Elements
One of the largest investments on your equipment is your heated hose. Dragging it in and out of your truck and across the ground to the job site can damage it in many ways. Nails, sharp rocks and metal banding...
Tech Tip – Spraying in Cold Weather
COLD WEATHER TECH TIPS With the cold weather upon us, I feel the need to remind everyone about some of the following things that will help insure good foam is being applied and equipment problems are minimized. STORAGE Try to...
Tech Tip – Proportioning Equipment Maintenance
Daily Maintenance: The proportioning equipment that is used to process foam and high performance coat requires constant attention and routine maintenance in order to perform the way it was intended. One of the many components that require daily attention is...
Tech Tip – Avoiding Foam Shrinkage
Are you having problems with your foam pulling back or shrinking? Getting ready to spray foam on a surface that has moisture on it sometimes can make the foam shrink back from the studs and or peel off of the...
Tech Tip – Coating Yields
Determining yields on coatings is not unlike determining yields on spray foam, The following hold true for both: (1) Smoothness of surface (2) Material temperature (3) Thickness applied (4) Equipment & tip size used (5) Sprayer experience For all of...
Tech Tip – Circulation of Open Cell, Water Blown Foams
When processing Demilec open cell foam it is important to circulate the A and B components prior to application. Circulation aids in increased yield and productivity, better physical properties of the insulation system, and maximizes the delta T of the...
Tech Tip – The Importance Of Properly Greasing The Air Motor On The Transfer Pump
Have a sluggish transfer pump? Does it seize on you? Chances are, it’s not being maintained properly. Many people lube the air motor potion of the pump with lithium grease that causes it to become extremely dry and sticky. This...
Tech Tip – Iso Removal from Pumps & Equipment
Isocyanate reacts with moisture creating hard crystals or scale which in some case may damage or ruin equipment. Removing this dried iso from spray foam equipment is necessary to prevent internal damage or contamination. The removal process can be difficult...
Tech Tip – Fusion Mix Chamber
Mix Chambers for the Fusion Gun: Always make sure to check and properly clean your mixing chamber using only the proper drill bits that come with the mixing chamber. Using the wrong size drill bit will cause over size ports...
Tech Tip – Rupture Disk Assembly
If you see chemical dripping out of the back of your machine, it is quite possible that your rupture disk needs to be replaced. Rupture disks are designed to burst to relieve pressure in order to prevent dangerous high pressure...
Tech Tip – Refinishing Metal Side Seals
Tech Tip – Air Caps for the Fusion AP Guns
Air Caps for the Fusion AP Guns: Be careful not to use a drill bit to drill debris out of the four clean-off air ports at the back of the cap. Instead use a brush from the Fusion AP brush clean out...
Tech Tip – Spraying Foam in Cold Weather
COLD WEATHER TECH TIPS With the cold weather upon us, I feel the need to remind everyone about some of the following things that will help insure good foam is being applied and equipment problems are minimized. STORAGE Try to...
Technical Tip – Connecting Rods
When maintaining your Reactor, one of the quick things to check on the E-series machines is the connecting rods. These are the rods that connect the motor to the displacement pumps, located on the side of the machine. If the bearings on...
Tech Tip – What is an 0A Error Code?
An 0A error code on an Reactor Series propotioning unit simply means that the machine has lost communication to the FTS (Fluid Temperature Sensor). This kind of reading is displayed if the FTS is disconnected at startup or if there is an...
Prevent Your Reactor from Overheating and Shutting Down.
During summer months we see a lot of problems with the Reactors overheating and shutting down. The circuit boards have their own thermal limit sensors and will shut down if the proportioning equipment gets too hot. One common indication that...
The Importance of Desiccant Dryers
Desiccant cartridges are extremely important to help prevent moisture from entering the A-Side Isocyanate drum as well as the recirculation line (*if applicable) on the Iso side. These 10” canisters feature a small indicator window that lets you see when...
Tech Tip – Fusion Gun Filters
Checking the Fusion Gun Filters Tech Tip: Make sure to check the fusion gun A-side and B-side filters before or after every new set of chemical. If filters are not checked regularly, the gun will start to spray off-ratio and...
Tech Tip – Checking the Throat Seal Liquid (TSL)
Remember to check the condition of the Throat Seal Liquid (TSL) in the ISO wet cup flush reservoir on a daily basis. Also check the condition of the TSL on the felt wipers of the B-side packing nut. ...
Tech Tip – E31 Error Code
On Reactor E-Series Graco machines: An error code not commonly found in manuals is E31. This means the motor switch on the control board has shorted out and you need to replace the motor control board. Below are the...
Tech Tip – Blazelok Products
Because of the high intumescent solid content of the Blazelok product line it is very important to make sure and remove all the filters from the airless sprayer and the spray...
Tech Tip – Reading the Foam
Remember, when experiencing imbalanced pressures such as an error code E-24, focus on what is on the wall. Is it more A-side chemical, or B-Side chemical? Go back to the machine and check your gauges to determine whether we have...
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Demilec (USA) LLC
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Arlington, TX 76011
(877) DEMILEC (336-4532)
Phone: (817) 640-4900
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