First, what is the SPC floor?
The SPC floor is mainly composed of a certain proportion of calcium powder and polyvinyl chloride stabilizer combination to form a composite floor material. This is a new environmentally-friendly floor developed based on high technology, featuring zero formaldehyde, mildew proof, moisture proof, fireproof, insect proof and simple installation. SPC floor is extruded from the extruder with T-die to extrude the PVC substrate, and the three-roll or four-roll calender is used to respectively wear the PVC wear-resistant layer, PVC color film and PVC substrate, and heat-fit and emboss the product once. The process is simple, the fit is done by heat, and no glue is needed. SPC flooring materials use environmentally friendly formulations and do not contain hazardous substances such as heavy metals, phthalates, methanol, etc., in accordance with EN14372, EN649-2011, IEC62321, GB4085-83 standards. It is very popular in developed countries in Europe and America and in the Asia Pacific market. With its excellent stability and durability, the stone-plastic floor not only solves the problem of moisture deformation and mildew of the solid wood floor, but also solves the formaldehyde problem of other decoration materials. It has a wide selection of designs, suitable for indoor home improvement, hotels, hospitals, shopping malls and other public places.
First, what is the SPC floor?
Second, SPC floor production process
Process: 1. Mixing
Automatic metering according to raw material ratio → high-speed mixer hot mixing (hot mixing temperature: 125 ° C, function
It is a mixture of various materials to remove the moisture in the material) → into the cold mix (to cool the material,
Prevents caking and discoloration, cold mixing temperature: 55 °C. )→mixing the homogeneous material by cooling;
Process 2: Extrusion
Adding to the twin-screw extruder for heating and extrusion → into the sheet die extrusion molding, the formed sheet
The material is passed through a four-roll calender, and the substrate is thickened → affixed with a color film → adhered to a wear layer → cooled → cut;
Process 3: UV tempering
Surface UV→tempering (tempering hot water temperature: 80~120°C; cold water temperature: 10°C)
Process 4: slitting and slotting + packaging
Slitting → Slotting, Trimming, Chamfering → Inspection → Packaging
Third, the functional characteristics of SPC floor
(1) Waterproof and moisture proof. It fundamentally solves the problem that wood products are prone to decay and swelling after being absorbed by moisture in humid and multi-water environments, and can be used in environments where traditional wood products cannot be used;
(2) Insect and termite prevention, effectively eliminate insect harassment and prolong service life;
(3) Colorful, there are many colors to choose from. It has both natural woody texture and wooden texture, and can be customized according to your own personality;
(4) It has strong plasticity and can realize individualized style very simply, fully reflecting the individual style;
(5) High environmental protection, no pollution, no pollution, and can be recycled. The product does not contain benzene and formaldehyde. It is an environmentally friendly product. Recycling greatly saves the amount of wood used, and is suitable for sustainable national policy for the benefit of society;
(6) High fire resistance. It can be effectively flame retardant, the fire rating reaches B1 level, it will self-extinguish in case of fire, and it will not produce any toxic gas;
(7) Good processability, can be ordered, can be planed, can be sawed, can be drilled, and the surface can be painted;
(8) Simple installation, convenient construction, no complicated construction process, saving installation time and cost;
(9) No cracking, no expansion, no deformation, no maintenance and maintenance, easy to clean, saving post-maintenance and maintenance costs;
(10) The sound absorption effect is good, the energy saving is good, and the indoor energy saving is as high as 30% or more.
Fourth, how to choose SPC floor?
The first trick: look at the appearance
The surface is smooth, no pollution, no obvious stains, clear pattern, no damage. Specifically, when purchasing, it depends on whether the overall color of the SPC lock floor is consistent, and whether the pattern on the floor surface is clear and delicate. Randomly select 2 boards, there is no height difference between the pieces, there is no obvious gap in the middle, such a floor is a high quality floor. In addition, it is necessary to pay special attention to whether the lock of the floor is straight and smooth, which directly affects the effect of the post-floor paving. I believe that all of your friends don’t want the effect of their own home floor coverings to be difficult to say. Therefore, we must pay attention to this point, and it will really be bad if it is not later.
The second measure: drip test
The drip test is divided into two aspects: the first is to test whether the lock of the floor is connected, whether it is leaking; the second can also test the anti-slip performance of the floor. First, take out two locks on the floor, connect them naturally through the locks, and lay them flat on the ground. Then drop the water on the seam and let it stand for a while. Wipe the water with a dry rag and separate the two floors to check for water marks in the card slot. The SPC floor mainly uses polyvinyl chloride material, which does not absorb water and turns into water when it is in contact with water, so it is non-slip and moisture-proof.
The third measure: nail shaving
The surface of the SPC lock floor has a special, high-tech processed transparent wear layer that determines the wear resistance of the SPC floor. You can use your fingernails to lightly scratch the surface of the floor. The high-quality SPC locks the floor and the surface generally leaves no trace.
Five, SPC floor installation steps
The first step: ground detection: use temperature and humidity meter to detect temperature and humidity, indoor temperature and surface temperature should be 15 °C, should not be below 5 °C and above 30 °C. The relative air humidity suitable for construction should be between 20% and 75%. The water content of the base layer is measured using a moisture content tester, and the moisture content of the base layer should be less than 3%. The strength of the base layer should not be lower than the requirement of concrete strength C-20, otherwise suitable self-leveling should be used to strengthen the strength. The hardness tester shall have a surface hardness of not less than 1.2 MPa. For the construction of SPC floor materials, the unevenness of the base layer should be less than 2 mm in the range of 2 m ruler, otherwise the appropriate self-leveling should be used for leveling.
Step 2: Floor pretreatment: use a ground grinding machine with more than 1000 watts and appropriate grinding discs to grind the floor, remove paint, glue and other residues, raised and loose plots, with empty drums. The plot must also be removed. Vacuum the floor with an industrial vacuum cleaner of not less than 2000 watts. For cracks on the floor, stainless steel ribs and urethane waterproof adhesive surface coated with quartz sand can be used for repair.
The third step: self-leveling construction - primer: the absorbent base layer, such as concrete, cement mortar leveling layer should first be diluted with water in a 1:1 ratio using a multi-purpose interface treatment agent to seal the bottom. Non-absorbent base layers such as tiles, terrazzo, marble, etc., are recommended to be primed with a dense interface treatment agent. If the moisture content of the base layer is too high (> 3%) and construction is required immediately, the epoxy interface treatment agent may be used for the bottoming treatment, provided that the moisture content of the base layer should not exceed 8%. The interface treatment agent should be applied evenly without obvious effusion. After the surface of the interface treatment agent is air-dried, the next self-leveling construction can be carried out.
Step 4: Self-leveling construction—stirring: Pour a pack of self-leveling into a mixing tank filled with clear water according to the specified water-cement ratio, and stir while pouring. In order to ensure self-leveling and even mixing, high-power, low-speed electric drills must be used with special mixers for mixing. Stir to a uniform slurry without agglomeration, allow it to stand for about 3 minutes, and stir briefly. The amount of water added should be strictly in accordance with the water-cement ratio (please refer to the corresponding self-leveling instructions). Too little water will affect liquidity. Too much will reduce the strength after curing.
Step 5: Self-leveling construction—laying: Pour the self-leveling slurry that has been stirred onto the floor of the construction. It will flow and level the ground by itself. If the design thickness is ≤ mm, it needs to be supplemented by a special tooth scraper. Batch scraping. Subsequently, the construction personnel should wear special nail shoes and enter the construction ground. Use a special self-leveling deflation roller to gently roll on the self-leveling surface to release the air mixed in the mixing to avoid the bubble surface and the interface height difference. Immediately after the completion of the construction, the site will be closed. It is forbidden to walk within 5 hours, and heavy objects will be avoided within 10 hours. After 24 hours, the SPC floor can be laid. In winter construction, the laying of the floor should be carried out after 48 hours of self-leveling construction. For self-leveling fine grinding, it should be carried out after 12 o'clock in self-leveling construction.