| 摘要 |
A composition and method for forming plant containers, such as plant propagation trays providing control of plant root growth. The method includes applying to a sheet of thermoformable plastic an aqueous coating composition including between approximately 20% and 45% by weight non-delaminating acrylic latex, between approximately 8% and 30% by weight copper hydroxide, between approximately 2% and 20% by weight filler, and between approximately 0.5% and 5% by weight dispersant. The coating is dried and the plastic sheet is heated to a temperature sufficient to form the plastic. The plastic sheet is then formed into a desired shape.
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