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Equipment 2018

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COATINGSPRO EQUIPMENT 2018 27 27 27 Spraying ½ lb Wall Foam in a Single Pass- Refining Spray Technology e spray foam insulation market in the USA is thriving, with competition tight in many markets. Efficiency is always at the forefront of successful bidding and profitable job execu- tion. Polyurethane Spray Foam (SPF) with ½ lb. density can expand up to 150x when applied, making it very difficult to control in a stud wall cavity. e spray technique has a direct impact on how the cavity fills, and how much trimming will be required. Good spray technique will minimize trimming. When excess foam needs to be trimmed, it results in margin loss from wasted material, increased labor time (cutting, sweeping, bagging) and any disposal time/cost as well. e team at PMC received requests from end users for a solution to applying ½ lb. SPF in stud wall cavities, hoping to achieve an even profile with a single pass when applying ½ lb. SPF. Traditional flat spray tips are used in the industry, but are based on paint spray tips with an elliptical orifice, allowing for feathering and overlap. is works well for the intended use, but when it comes to SPF, it does not give an even edge-to-edge pattern. Rectangular or 'slotted ' orifices have been used with some positive results, but the squared corners of the orifice tend to build up material on fast-re- acting systems. e goal was for the PMC Team to design an orifice that would allow even distribution of the material. After trials testing output and spray patterns, PMC now offers the TP-100 spray tip for spraying ½ lb. SPF into stud wall cavities. Testing showed an even, edge-to-edge distribution of the foam on the studs and cavity. is also produced excel- lent adhesion, and a more consistent surface than other spray techniques. e tip is based on traditional spray technology and uses a standard mixing chamber. e TP-100 orifice has been sized and shaped to spray with a variety of standard mixing chambers. e unique rounded-off orifice allows distri- bution of materials even at the edge of the spray pattern. As the SPF industry grows and matures, it is import- ant for equipment manufacturers to pay attention to detail where it can make a difference. Evaluation must take place on a large scale - like equipment package design, but also on refining existing technology for maximum performance. Attention to these details is where additional profitability can be generated for the contractor. PMC listens to the indus- try and focuses on development that drives efficiency and profitability for the applicators, equipment distributors and material suppliers. Sometimes the next big thing is just a refinement of existing technology. Polyurethane Machinery Corporation One Komo Drive Lakewood, NJ 08701 USA Office: +1-732-415-4400 Cell: +1-317-439-5399 Fax: +1-732-364-4025 www.polymacusa.com By Murphy Mahaffey, Director of International Sales Company Profile: Polyurethane Machinery Corporation SPONSORED CONTENT

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