Friday, 8 July 2016

Why not use Fibre Glass for your next repair?

Using fibre glass is often overlooked, more often than not as a repair solution, because one associates it with only car body repairing or boat repairs. Well this is not quite correct, as there are literally hundreds of other applications in and around the home where you can use fibre glass. For instance you can fill holes virtually anywhere, in timber, brick or even concrete. You are able to repair your water tanks, water pipes, the guttering, even your furniture.
Ordinary resin or polyester-based filler paste can be used for repairing small holes and dents in metal and wood. To extend your repair kit even further, I suggest you include the conventional Fibre Glass materials, being resin and Chopped Strand Mat (CSM). This will allow you to repair anything from roofs to rusty storage tanks that can be patched. Make a Fibre Glass bandage to add strength to gutter or down-pipe joints, or if you have a burst water-pipe, a similar application for a successful interim repair.
Although there are many types of Fibre Glass products, for instance woven cloths (more strength less flexible) fibre tissue where appearance is of importance and not strength. To give a better finish fibre tissue is often used on top of the CSM material. You will find most repair kits that are available supply CSM, this product is actually a mat of randomly laid fibres which are loosely held together by an emulsion, of which dissolves upon contact with the fibre glass resin. This allows more flexibility and interconnection between the alternate layers of the fibre and resin.
Essential materials required, Chopped Strand Mat (CSM) or fibre glass tape, resin (attention this has a limited life) and hardener are for the fibre glass material. A measuring dispenser for the hardener, a grooved metal roller, important to remove any air bubbles, a stiff bristled brush, you will also need acetone or cellulose thinners for cleaning. Finally, an absolute must, Gloves.
Rather than buy a proprietary filler, why not make your own as you have the resin and hardener, almost any aggregate can be used together with clear general purpose resin and hardener. For instance, fine sawdust makes perfect filler for wood, powdered chalk or a cheap talcum powder makes dense filler of which can be used for cracked concrete, brickwork. Mix one part of aggregate to one part of resin/hardener solution when making up the paste, carefully turning the mix into itself, avoiding creating air bubbles until the mix is to a uniform color. Attention to the quantity you mix, as it may harden before you have had the chance to use it all. Damp and cold are not conducive to successful work, ideal temperature approximately 20 C.
Filling holes or dents, to repair minor holes or dents with filler start by scuffing the area with a sanding disk at least 25 mm around the affected area. Clean the area with a white spirit, if you are working with metal apply a coat of rust inhibitor. If the hole you are repairing is in metal and the repair is not to show above the surrounding surface,I would suggest you indent the area around hole with a ball head hammer, this way the indent can be filled and later sanded to a flat smooth finish.
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