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| Field | Value |
| Title | Control of CCA leaching from treated rubberwood panels |
| Names |
Peter, M.A.
Sreeja, A. Ashraf, P.M. Edwin, L. |
| Date Issued | 2010 (iso8601) |
| Abstract | The scarcity of durable wood in the world made the use of non-durable and cheaper wood inevitable. The preservation of wood using chemicals especially chromated copper arsenate (CCA) is an efficient method to give good durability to non-durable wood. CCA has proved to be effective in increasing the life of less durable wood, from 2-3 years to 15-30 years depending on the medium in which it is used (AWPA, 1994). Rubberwood (Hevea brasiiensis) is a less durable wood, which cannot be used effectively without preservation. Experiments have been conducted at the Central Institute of Fisheries Technology, Cochin using rubberwood for aquatic uses, especially in the construction of small fishing canoes (Edwin etal., 2005). Even though the use of CCA as a wood preservative improves the life of less durable wood, the slow diffusion of the preservative into the aquatic environment through leaching, weathering, decay or erosion of the treated wood may pose a threat to the aquatic life (Lebow, 1996). In this context, it would be appropriate to discuss methods to prevent the leaching of the preservative components into the aquatic medium. Physical barriers like sheathing the treated wood with materials like Fibreglass Reinforced Plastic (FRP) and coating the treated wood with paint, sealants or water repellents are some of the methods used for this purpose. Stilwell (1998) studied the ability of boards with polyurethane, latex/acrylic, oil stain and spar varnish coatings and they were found to be very effective in reducing dislodgeable CCA chemicals for at least one year after application. |
| Genre | Article |
| Topic | Rubberwood panels |
| Identifier | Proceedings of the National Seminar on Conservation and Sustainability of Coastal Living Resources of India, 1-3 December 2009, Cochin, ed.by Meenakumari, B. et.al 227-234 |