I. Base Surface Treatment: The Key Premise for Installation Quality
Before installing the 5-centimeter-thick rubber pads, base surface treatment is a crucial step that determines the quality of the subsequent installation. It involves meticulous operations in cleaning and grinding, as well as defect repair. During cleaning and grinding, a grinding machine should be used to treat the surface of the diamond sand floor, removing loose sand, oil stains, and protruding parts, ensuring that the ground flatness error is controlled within ≤2mm. Special attention should be paid to grinding areas with cracks and potholes to achieve a rough surface with a roughness of Ra12.5-25μm, which effectively enhances the adhesion between the glue and the base surface. After grinding, merely cleaning the dust is not enough; first, use a vacuum cleaner to suck up the dust, then clean it further with an industrial mop. For damp areas, ensure they are well-ventilated and dry, which can be verified with a moisture meter to keep the base surface moisture content ≤8%, avoiding the impact of excessive humidity on the adhesion of the rubber pads. When there are holes with a diameter >5mm on the base surface, they should be filled with epoxy mortar; for cracks wider than 1mm, first, make a V-shaped groove and then fill it with elastic sealant. After the filler dries, grind it flat to ensure the base surface has no obvious defects, providing a solid foundation for the rubber pad installation.
II. Line Marking and Positioning: Precise Planning for Rubber Pad Layout
After the base surface treatment is completed, the line marking and positioning step follows, which provides a clear reference for the rubber pad installation and prevents edge misalignment. Specifically, the reference lines should be determined based on the actual specifications of the rubber pads. For instance, common roll widths are 1.2m, and block sizes are mostly 600×600mm. Taking the 600×600mm blocks as an example, usually, the installation starts from the entrance of the room, which is a prominent and easy-to-operate position. Lines are then marked at 600mm intervals along the horizontal and vertical directions to form a regular grid layout, facilitating accurate installation in the subsequent steps.
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III. Rubber Pad Cutting and Pre-treatment: Adapting to Different Installation Scenarios
Before installation, the rubber pads need to be cut and pre-treated according to the actual installation scenarios. For rolls, cut them according to the previously marked reference lines using a utility knife, ensuring the edges are vertical with an error of ≤1mm. If there is a need to fit around a curved corner, draw a clear arc on the rubber pad with a template in advance and then cut along the arc to ensure the shape is precise. For blocks, carefully check the edges and corners for flatness. If there are burrs, gently sand them smooth with sandpaper to prevent edge lifting after installation. In some special scenarios, such as around equipment bases and pipes, where standard-sized installation is not possible, on-site sampling should be done, and the cutting positions should be accurately marked on the rubber pad with a marker pen. Then, cut out precise contours like circles and U-shaped notches to perfectly fit these special areas.
IV. Glue Application: Selecting the Adhesive Method Based on Scenarios
Glue application is a critical step in the installation of rubber pads. Different thicknesses of rubber pads require different adhesive methods, mainly full adhesion and spot adhesion. Full adhesion is suitable for thin pads with a thickness of 3-8mm. During operation, use a roller to evenly apply the special rubber glue on the base surface and the back of the rubber pad, with an application rate of 200-300g. After application, let it dry in an environment with a temperature of 25℃ and a humidity of 60% for 10-15 minutes until it reaches a non-sticky state when touched. Then, carefully align the rubber pad with the reference lines and start laying from the center, pressing it down towards the edges with a rubber hammer to expel internal air and ensure a firm bond between the rubber pad and the base surface. Pay special attention to the corners and apply more force when hammering to enhance the adhesion effect. The point bonding method is applicable to rubber pads with a thickness of over 10mm. The specific approach is to apply glue on the back of the rubber pad in a plum blossom pattern, with a spacing of 300×300mm between each point, and each point having a diameter of approximately 50mm. At the same time, glue should be applied to the corresponding points on the base surface. After the glue dries, the bonding can be carried out. At this time, it is important to press the glue contact area firmly to ensure stable bonding.
V. Joint Treatment: Balancing Waterproofing and Aesthetics
During the laying process, the quality of joint treatment directly affects the overall waterproof performance and aesthetic appearance. Different methods are adopted for block splicing, roll material overlapping, and corner treatment. When splicing blocks, a gap of 1-2mm should be left between adjacent blocks, then rubber glue should be evenly applied on both sides of the gap, followed by embedding a 50mm wide joint tape, and finally a thin layer of glue should be applied on the surface and the sealant should be smoothed out to ensure both sealing and aesthetics. For roll material overlapping, the overlapping width is generally controlled at 50-100mm. To enhance the sealing at the overlapping area, the edge of the upper roll material can be cut at a 45° angle with a utility knife, then glue should be applied and pressed firmly. Joint tape can also be added at the overlapping area. At the corner where the wall meets the floor, the rubber pad should be lifted up by 100-150mm, then fixed with metal strips such as aluminum alloy, and finally sealant should be applied along the edge of the metal strip to ensure waterproofing.
VI. Edge and Special Area Treatment: Ensuring Usage Effect by Perfecting Details
In addition to the above main steps, the treatment of edges and special areas should not be overlooked. For example, at the junction of the skirting board, a 5mm gap should be left between the edge of the rubber pad and the skirting board, and filled with elastic sealant to effectively prevent the rubber pad from bulging due to thermal expansion and contraction. In the area around the drain, the rubber pad should be cut into radial slits centered on the drain, then laid out and pressed around, and the slits should also be sealed with sealant to ensure smooth drainage and no water accumulation.
Jingdong Rubber Co., Ltd. is a professional rubber sheet manufacturer, producing silicone rubber sheet, natural rubber sheet, fluorine rubber sheet, neoprene rubber sheet, insulating rubber sheet,EPDM rubber sheets, oil-resistant rubber sheets, anti-static rubber sheets, flame-retardant rubber sheets, conductive rubber sheets, anti-slip rubber sheets, and cowshed mats, etc. with over 40 years of industry experience, are popular both at home and abroad. If you need any of our products,please send emails to sales@jingdongrubber.com.