In the PVC deck and roofing membrane industry, trowels function as metering devices for applying the right amount of adhesive in membrane installations. Dec-Tec believes that one of the keys to ensuring a cost-effective, long-term, well-bonded installation, one that minimizes the risk of callbacks and costly repairs, lies in using the appropriate combination of adhesive and trowel.
Dec-Tec adhesives are specifically formulated for Dec-Tec membranes. Using a high-quality Dec-Tec adhesive and pairing it with our recommended trowel can save substantial time and effort throughout the installation. Dec-Tec adhesives provide superior adhesion over the long term, are composed of the highest-quality raw materials, and manufactured under strict production control. They are developed to meet the most stringent requirements of construction, building code and environment, and are required to obtain your Dec-Tec warranty.
Before starting a job, trowels should be clean and dry to ensure sufficient adhesive coverage; dirty, clogged-up notches can lead to improper spread rates, poor bond performance and costly installation repairs. Always clean and wipe trowels dry after applying adhesive. Using abrasive techniques to remove dried adhesive will damage the trowel, shorten its life span, and increase operating costs by having to replace it more often.
Trowels are notched with different profiles and sizes. The correct notch size and notch style (whether V-notched, U-notched or square-notched) are important considerations. Take these recommendations seriously because the width and depth of the notch act as a gauge for applying a consistent amount of adhesive. Notches that are too close together can result in insufficient coverage, resulting in a shorter open time and poor bond performance. Notches that are too far apart, or too large, can result in ridges showing through the membrane and/or too much adhesive being applied.