Hi All Chipboard Chipboard is made by bonding together wood particles with an adhesive under heat and pressure to form a rigid board with a relatively smooth surface. Chipboard is available in a number of densities; normal, medium and high-density. Normal density is fairly soft and 'flaky', high-density is very solid and hard (often used for worktops and fire doors) - medium density is somewhere in between.
There are exterior grades of chipboard available but most are only suitable for internal use as all but high-density tend to soak up water like a sponge. Once water logged, chipboard tends to swell and breakdown. Veneered ChipboardVeneered Chipboard is widely used for self-assembly furniture, work surfaces, wall linings and partitions. High-density chipboard is often used as a basis for the carcasses of kitchen furniture, worktops, and flooring - this is hardwearing, rigid and heavy. Other grades available are standard, flame-retardant, flooring, and moisture-resistant. Chipboard is normally available in 2440 x 1220 sheets (or subdivisions), finished veneered sheets are available in smaller sheets so that the four decorated edges do not need to be cut. Thicknesses range from 12 to 25 mm. Flooring grade chipboard is marked 'flooring' and no other should be used. It is normally available in 2440 x 1200 and 610mm sheets and in 18 and 22mm thicknesses with tongued and grooved edges for easy laying and fixing. Before using flooring grade material check it is suitable for your floor joist spacing. Working with chipboard Apart from high density chipboard, the finish after cutting is generally poor. As with plywood, veneered chipboard should be cut with the saw blade going into the finish face to prevent the finish veneer chipping. To reduce the amount of damage when cutting chipboard, apply a strip of masking tape along the line of the cut and cut through the tape. A panel, circular or jig saw can be used. Fixing Nails, pins and screws may be used on normal chipboard, but they should always be fixed through the chipboard and into a support. If you pin, nail or screw into chipboard, the fixings may pull out easily. With high density chipboard nails, screws and fixing can be used. The screw-holding power is improved if double-threaded or chipboard screws are used. Follow the manufacturer's instructions for fixing special purpose boards. Any woodworking adhesive may be used with chipboard although when it does fail, normally the outer 'chips' separate from the rest of the board. Do not rely on gluing only to support heavy weight. Finishing Generally only laminate chipboard will give a satisfactory finish although laminate or self-adhesive decorative film can be used. Edging (normally self adhesive) strip is available to add laminate type finish to sawn edges of pre-laminated chipboard. Ordinary chipboard is fairly unattractive on its own but if you want to paint it, use oil based paints - using water based paints can cause chipboard to swell. To listen to the show archives go to link http://acbradio.org/handyman.html or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday The Pod Cast address for the Cooking In The Dark Show is. http://www.gcast.com/u/cookingindark/main.xml Visit The Blind Handy Man Files Page To Review Contributions From Various List Members At The Following address: http://www.jaws-users.com/handyman/ Visit the archives page at the following address http://www.mail-archive.com/[email protected]/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/blindhandyman/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/blindhandyman/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
