When starting your own spray foam company, it is important to have high quality equipment from reputable manufacturers. Companies like PMC and Graco have products that are quality tested and built to last. By spending more money on quality equipment now or buying new instead of used, you can save on having to replace less quality products more frequently. Oftentimes, used equipment is less costly than new because all the parts are brand new.
Avoid unnecessary down time by performing maintenance checks before you start your day. It is easier to perform these checks while the system is cool and pressure free. Taking this step saves you downtime later if something was wrong.
Fluids subjected to heat in confined spaces, including hoses, can create a rapid rise in pressure due to the thermal expansion. Over-pressurization can result in equipment rupture and serious injury.
Inspecting your Hoses
General inspection of your hoses with prevent damage that can easily be prevented. Check the hose, fittings, and surrounding equipment for cured material and clean. Ensure your hose is not in a high traffic area where heavy machinery could run it over and cause damage.Continue reading
When heating up your hose, I highly recommend unravelling the bulk of it. There are two reasons why.
One – the hose will create hot spots and could potentially get to the point where the hose would melt and burst open after an extended period of time. The second reason – as you spray material, you’ll get inconsistent heat and as your material cures, your application will become poor and inconsistent.
The B Side, in general, is less likely to cause contamination in the screens. As a result, B Side screens are often neglected.
One possible cause of B Side pressure loss is the collection of paint chips over time. Spray foam drums are recyclable and during the recycling process, some of the drums are repainted inside. Over time, the B component can soften the paint in the drum, causing it to flake off and collect in the Y-filter assembly – restricting flow to the machine. Making the Y-filter assembly a priority to clean can help prevent the collection of paint chips.
When I find my equipment is spraying just right, I grab a pocket thermometer. With a variety of elements including sun and fluctuating temps outside, that’s what I use to maintain the temperature between my gun and proportioner.
I always stick a pocket thermometer at the halfway point of my hose, so if there’s 200 feet I stick it in the sleeve at 100 feet. This way, if the material sprays a little off, I just check that thermometer to ensure the hose is the same temp all the way through.
After several years of service, iso will form a buildup within the hose. We recommend doing a thorough strip and rinse of these hoses to assure full flow performance. Order our SprayWorks Power Flush System to restore those aging iso hoses or when winterizing the system. You’ll be amazed at the amount of old cured materials that will come out.
The Pump Lube Check Valve is often overlooked when performing maintenance. The check valve can be maintenanced by releasing one pound of air into the valve to ensure it is in working condition.
The equipment used today for spraying plural component urethane foam and coatings provide the means to preheat the A and R chemicals, pressurize the chemical to the manufacturer’s recommended PSI and deliver that conditioned and heated chemical to the gun via a heated hose. Most units today utilize a system which provides automatic hose heat. The proportioners are equipped with a controller which receives a signal from a temperature sensing unit. The signal indicates the temperature of the chemical in the hose from a remote distance from the proportioner and ideally just before the gun.