In order for the safety glass not to be too rigid you press with your hand and, after soaking the chosen area with catalysed and accelerated resin, put it in place. With a brush soaked in resin and with little touches you adapt it to the mould. You have to try not to leave bubbles between the layers. The safety glass should be placed aligning the edges. The pieces of safety glass have been previously cut into different sizes. It is advisable to use an anti-dust mask during this operation and an activated carbon mask when manipulating polyester.