Non-pressure treatability of plywood by CCA, CCB and boron

IRG/WP 05-40295

A K Lahiry

Study on diffusibility and absorbability of CCA, CCB and boric acid in 3 mm thick 3-ply hardwood plywood at water saturated and air-dry conditions and dipped at same concentration (5%) and same duration of time (12 hours) revealed complete diffusion of all the preservatives at water saturated condition. Only the CCA-C was found absorbed by the plywood at air-dry condition. The rate of absorption and diffusion of CCA-C was found about 4.5 times higher than CCB and boric acid.

Keywords: Plywood, CCA, CCB, boron, dipping, diffusion, absorption

Conference: 05-04-24/28 Bangalore, India

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