| 11.1 | All seams in Altro Safety Flooring must be grooved prior to heat welding. A 3mm wide groove must be cut evenly along each joint. |
| 11.2 | Due to the metal particles and quartz crystals in the Altro Flooring, do not use standard hand or electric grooving tools. Fit a diamond-cutting blade to electric grooving tool if required for use. Eye protection should be worn. |
| 11.3 | Do not attempt to groove seams in Altro Flooring until the adhesive has set. Minimum 24 hours. |
| 11.4 | Do not attempt to groove seams by 'free hand'. Always use a straight edge as a guide. |
| 11.5 | Seam grooving by hand shall be accomplished using the Altro A1 grooving tool and the A2 grooving blade. One A2 grooving blade with 4 cutting edges will groove approximately 20 l/m. Change grooving blades regularly. |
| 11.6 | Align centre of grooving blade to exact centre in Altro Flooring seam. Grooving tool shall be held at the correct angle (of approximately 45 degrees) to ensure optimum cutting of required groove. |
| 11.7 | The Altro hand groover must be used by pulling along the centre of the seam guided by the straight edge. |
| 11.8 | The depth of the groove shall be to a minimum of 1/2 to maximum of 2/3 of the thickness of the Altro Flooring. |
