Explain the purpose of gelcoat in grp process with eg.
-describe a sitiuation when wax is properly applied to a mould?
-what r the 2 faults of cold chisel?
-discuss two steps in reconditioning of cold chisel?
-explain why a technological product changes overtime.
-what is the specific function of marking gauge and sliding bevel.
-why plain sawing board can easily warp during the seasoning process.
-what is the use of acetone in fibre glass construction.
-explain how the oxidizing flame can be produced.
-what does grp stands for?