Two component spray foam systems, for sprayed in place or spray on polyurethane foam insulation blends, are primarily packaged in steel 55 gallon barrels and distributed by their weight in volume as a paired set. A Paired Set is two barrels consisting of one “A” side (Activator/Isocyanate) and one “R” side (Resin/Polyol) ranging in a combined liquid weight from 970 lbs. to 1050 lbs. It should be noted that in many instances the components are referred to as “A” and “B”, respectively. In general the spray foam systems are produced having at minimum six months shelf-life within the original unopened barrel. Stored between 60 and 75 degree F (15 – 24C), do not require additives, B sides may require mixing and/or continual agitation.Continue reading
It’s less common when material will not spray on the ‘A’ side and ‘B’ side at the same time, but when it happens, there could be a number of factors at play. If you find yourself in this position, take a look at these common reasons;
- Proper operation of the pumping system. (execute initial startup checks)
- The product cold, it doesn’t flow properly.
- Failing delivery supply like transfer pump wear or neglect.
- Your regulator could be malfunctioning; Are you getting enough air supply to your Transfer Pump?
- Failing packings from wear or neglect.
- Clogged screens can also cause major issues in proper flow.
- Recent crossover in hose or contamination within the gun itself.
How to Changeover Material Using the Logan Manifold
Below are instructions on how to changeover material from Open Cell (OC) to Closed Cell (CC) or from Closed Cell to Open Cell, using the Logan Manifold. Changeover only takes about 10 minutes, once the Logan Manifold is set up, and material waste is minimal at only eight ounces.
SprayWorks frequently gets calls from contractors with issues related to transitioning their spray foam equipment from one B-side material to another. We recently decided to take action and launched a new product, the Logan Manifold, to help applicators easily transfer material from Open Cell to Closed Cell or from Closed Cell to Open Cell.
Spray polyurethane foam material is one of the ongoing expenses you’ll have as an equipment and business owner. That means it’s one of the biggest areas in your business that you can cut costs by reducing waste when storing or spraying SPF material. Use the following four tips to effectively minimize SPF material waste in your spray foam insulation business.
Spray foam material is packaged, sold and shipped on the basis of weight. Therefore, in order to figure the volume of a product packaged in the drum, converting the weight of the product within the drum into gallons is required. To do so, the specific gravity or weight per gallon of material is required information. There is likely to be a difference between manufactures, so confirm with the product supplier to provide this info or if a scale is available, weigh the container first. Specific Gravity and per gallon weight of the liquid for some manufactures are provided on the SDS or product data sheet (formerly MSDS).
Material is a costly investment in any project and can easily change your profit margin if you’re not careful. Time has been a learning experience and our experts prepared the top four ways to save material and prevent waste on the job site and in storage.
1. Balance the chemical ratio: When applying spray foam, it’s important to keep your chemical ratio accurate based on the material supplier’s specifications. Is your foam not sticking to the substrate? Is it fishy smelling? These are all signs your ratio is off, requiring a second application and wasting additional material. The fishy smell is a result of the foam being resin rich, requiring a decrease in the “A” side.
The “A” component, while in the drum, will react with atoms in the air resulting in the formation of crystal like skin structures. The “A” material should be sealed properly to limit the potential of these formations that if allowed to form will contaminate the liquid. Contamination may make the liquid impossible to process, requiring disposal and wasting of the product. Once the drum is opened, the air needed to replace the displacement of the “A” material being removed should be dry. This is achieved be either low pressure nitrogen being let in the drum as the material is displaced or filtered through a desiccant dryer.
Spray mechanics generally prefer a product that maintains a good level of sprayability for processing. Applying or processing spray foams just on the cooler side of the temperature processing spectrum can aid in maintaining a good pattern.
How to choose the right foam for your portable spray foam equipment
When determining which type of polyurethane spray foam insulation to install, careful consideration should be placed on which type of cell is appropriate for the application. SprayWorks portable spray foam equipment is designed to accommodate both open cell and closed cell foam insulation.