anyway alvin, you can buy package fibreglass from any car-paint shop. Usually selling in small pack of RM20. It consists of a small piece (not very small la) of Fibre Cloth, A can of resin, and a small pharmacy-used bottle of hardener. All you need to do is mix the hardener with the resin before you apply them on the fibre cloth.
Always, use a glothes and a mask if possible, they can cause allergy to human skin and can get very very itchy.