How to install and fix the green PC endurance board?
1. The diameter of the fixed nail head should be more than 1.5 times larger than the diameter of the screw handle, and waterproof glue should be applied. Do not directly press the nail head on the board surface to reduce pressure.
2. Do not tighten the screws too tightly, otherwise it may cause stress and local cracks on the board surface.
3. Waterproof adhesive should not use PVC pads or asphalt based waterproof adhesive tapes; Sealant, neutral glass adhesive must be used, and acidic adhesive should not be used.
4. During the installation process of the green PC endurance board, it is not advisable to fix both ends first and then the middle. One end should be fixed first and constructed in the same direction, otherwise it will cause stress concentration in the middle and cause deformation or cracking of the product.
5. The linear expansion coefficient of green PC endurance board is about 6 times larger than that of metal materials, so it is necessary to drill holes on the board first before fixing it with self tapping screws, and the self tapping screws must be inserted in the middle of the hole diameter.
6. Calculation of reserved expansion space; Expansion value=linear expansion coefficient × length × Maximum temperature change value: Linear expansion coefficient of PC/frp board=7 × 10mm/mm/℃