Well decorated partner SPC floorLVT/SPC/WPC Floor Knowledge Little Science
1. Overview of plastic flooring
1. English name
PVC (poly-vinyl chloride), Chinese name: plastic floor, currently several common names are PVC/LVT/LVP/WPC/SPC/Vinylfloor/vinyl plank. The main component is polyvinyl chloride material. PVC flooring originated in Europe and the United States and is very popular in Europe, America and Asia-Pacific. China currently has more commercial floors with 2.0MM, and SPC and WPC floors are also slowly spreading.
5 common expression methods for plastic flooring
1.1 PVC: poly vinyl chloride,
1.2 LVT: luxury vinyl tile,
1.3 LVP: luxury vinyl plank
1.4 Vinyl floor
1.5 Vinyl plank
1.6 WPC: wood plastic composite
1.7 SPC: stone plastic composite, European and American countries call this kind of floor RVP (rigid vinyl plank), rigid plastic floor.
2. Classification of plastic flooring
At present, PVC sheet flooring can be made into two types. One is the same and thorough floor with the same pattern material from the bottom to the surface. If the surface is burned or scratched, it can be repaired by waxing with a sander . The other is that the top layer is a pure PVC transparent layer and then the printing layer and the foam layer are added underneath. It can be seen that the same quality penetrating material is much superior to the composite type.
From the morphological point of view, it is divided into coiled floor and sheet floor; the products highlighted in this article: LVT, WPC floor belongs to semi-rigid sheet plastic floor, and SPC (RVP) floor belongs to hard sheet floor. At present, there are three main types of LVT flooring: vinyl locking, dry back, loose lay. From another perspective, PVC flooring can be divided into: (Dry Back) click (Loose lay) according to the assembly method. At the same time, WPC wood-plastic flooring and SPC stone-plastic flooring are also in the stage of active promotion and rapid development in domestic and foreign markets.
2.1 Comparison of dry back and loose lay in plastic flooring
2.1.1 Similarities: all belong to PVC flooring, the specifications and sizes are the same, and some are the same size;
Dry back mainly has 942*157,1227*157,1227*187,1227*235, 914.4*101.6,470*470,608*308 (unit: mm) these eight specifications;
The loose lay mainly includes 942*157, 1227*157, 1227*187, 1227*235, 470*470, 608*308 (unit: mm).
Click mainly includes 936*150, 1220*150, 1220*180, 1220*228, 1500*228,600*300 (unit: mm). These specifications should be compared with dry back.
WPC currently has two specifications 1217*146, 1217*178, 596*296 (unit: mm).
SPC mainly includes: 1210*150, 1210*181, 203*1219, 178*1219, 152*1219 (unit mm)
A. Installation method: dry back needs to be assisted with water glue, etc., also known as glue down, loose lay can be directly paved (loose lay bottom layer has a layer of black leather on it, which cannot be pushed on a flat surface.)
B. Thickness: dry back Our factory only starts from 2.0mm thick bottom, and does not do below this specification, loose lay is generally consistent with Click 4.0mm, 5.0mm
C. Wear-resistant layer: Under normal circumstances, we now do Dry back with thickness of 2.0mm and 2.5mm, wear-resistant 0.1mm-0.5mm, Dry Back with thickness of 3.0mm, wear-resistant 0.1mm-1.0mm, 2.0mm The principle of 2.5mm and 0.5mm can be used for wear resistance, but it is not cost-effective. In addition, the formula of the base material and the intermediate material must also be changed and tested. Now the factory basically does not do it. The wear-resistant layer of 4.0mm and 5mm basically only wears 0.3mm and 0.5mm, the reason is the same as above.
D. Price: dry back is cheap, loose lay is more expensive
E. Regimen time: It takes 24 hours to recuperate after dry back tempering, looselay is the same as the lock series, it takes 48 hours.
F: The flexibility of the two is different. The loose lay product is obviously much softer than the dry back. Such characteristics can also be used as distinguishing features. At the same time, the most obvious thing is that there is a layer of black skin on the bottom of the loose lay. You can use a nail scraping test to distinguish between soft and hard.
3. The composition of the plastic floor
PVC floor composition: PVC resin powder, stone powder, stabilizer, carbon black, the main components are polyvinyl chloride and stone powder.
The plastic floor is composed of backing layer, core layer, glass fibre, decorative paper and wear layer in sequence from bottom to surface.
3. PVC certification
At present, the certification of PVC products are Floor score, DIBT, CE, ISO14001:2004 and ISO9001:2008, TÜV Rheinland.
5. The most critical product index of PVC
• Stability: Product shrinkage and expansion rate 80 ℃ 6 hours. 0.25%, 0.15% (standard)
•Heating warpage: 80℃ 6 hours EN<2mm; Enterprise standard: 1.2mm(dryback); 1.0mm(click); 0.5mm(loose lay)
• Locking tension: normal temperature (23℃) 5.0mm>13-15kgs/5cm.
• If V buckle is used on the short side, 4.2mm>15-18kgs/5cm.
• peeling strength (peeling strength): the bonding strength between the color film and the material
• Scratch resistance and wear resistance
• Brightness: 10+/-2.
6. Calculation of floor purchase area: If the area to be paved is 50 square meters, because the floor to the corner needs to be sawed off, and the loss rate of the general floor is 5%, so the actual area is 50*(1+5%) = 52.5 square.
Second, the advantages and disadvantages of LVT floor:
1. Green and environmental protection
The main raw material for the production of PVC flooring is polyvinyl chloride, which is an environmentally friendly and non-toxic renewable resource. It has been widely used in people's daily life, such as tableware, medical infusion tube bags, etc., its environmental protection is not necessary worried.
2. Super wear-resistant
There is a special PVC wear-resistant layer on the surface of the PVC floor, and its wear-resistant revolution can reach 300,000 revolutions. Depending on the wear-resistant thickness, it can be used for 5-10 years under normal conditions. The thickness and quality of the wear-resistant layer directly determine the use time of the PVC floor. The standard test results show that the 0.55mm thick wear-resistant layer ground can be used under normal conditions. Used for more than 5 years, the ground with a 0.7mm thick wear layer is sufficient for more than 10 years, so it is super wear-resistant. Because of its super abrasion resistance, PVC floors are becoming more and more popular in hospitals, schools, office buildings, shopping malls, supermarkets, transportation, and other places with a large flow of people. (For the wear resistance of the wear layer, at present, it is mainly through loss measurement, that is, quality reduction as an indicator)
3. High elasticity and super impact resistance
The PVC floor is soft in texture and therefore has good elasticity. It has good elastic recovery under the impact of heavy objects. At the same time, PVC flooring has strong impact resistance, and it has strong elastic recovery against heavy impact damage and will not cause damage. Excellent PVC flooring can minimize the damage of the ground to the human body and can disperse the impact on the feet. The latest research data shows that after the excellent PVC flooring is paved in a space with a large flow of people, its personnel fall And the rate of injuries was reduced by nearly 70% compared to other floors.
4. Fire retardant
The fireproof index of qualified PVC floor can reach B1 level, which means that the fireproof performance is very good, second only to stone. Fire is extinguished.
5. Easy maintenance
The maintenance of the PVC floor is very convenient. If the ground is dirty, wipe it with a mop. If you want to maintain the lasting and bright effect of the floor, you only need to wax regularly for maintenance, and the number of maintenance is much lower than that of the laminate floor.
6. Waterproof and moisture proof
Since PVC flooring is mainly composed of vinyl resin and has no affinity with water, it is naturally not afraid of water and will not be damaged as long as it is not immersed for a long time; and it will not be moldy due to high humidity.
Non-natural materials and high requirements for the base floor (the base layer must be flat, solid and dry when the LVT floor is laid, the surface of the plastic floor is smooth, the corners of the yin and yang are square, no edges, no oil stains, dust and impurities).
Third, WPC floor WPC
WPC combines the waterproofness and stability of LVT and is also easy to install like laminate flooring
With the addition of cork and EVA pads, the foot feel and sound insulation will be better than LVT lock floor.
WPC uses environmentally friendly materials, which are more environmentally friendly than laminate flooring.
In short: WPC has the advantages of both LVT and Laminate.
WPC: Wood Plastic Composition=LVT Layer + WPC Core
1.1.1 The LPT layer and WPC layer of WPC are bonded by glue, and the peel strength is still very good, even better than the bonding strength of LVT color film layer and matte after hot pressing.
1.1.2 The stability of WPC is better than PVC:
The WPC floor is taken at a high temperature of 80 degrees plus or minus 2 degrees for 6 hours, taken out and placed at a normal temperature of 23 plus or minus 2 degrees, and observed for 24 hours at 50% humidity. Concluded as follow:
Length shrinkage is 0.08%
The width shrinkage rate is 0.05%
2. Advantages of WPC
WPC Engineered Vinyl Flooring-The price of WPC is gold-grade, the price of WPC of 5.5mm is basically the same price level as Vinyl's 5.0mm lock and glue-free products, but it is higher than the magic buckle, and far higher Used in water-washing glue and ordinary PVC floor (rubbing glue type);
The installation cost of WPC is much lower than that of ordinary brushed PVC floor, lower than ordinary PVC lock buckle floor, and glue-free PVC floor, magic buckle and washed glue PVC floor.
The water resistance of WPC is quite good, and the water resistance of the wood-plastic layer is also very stable. On the contrary, the magic buckle, water-washing glue, and ordinary rubber-glued PVC floor are generally waterproof because they involve glue;
For the convenience of installation, WPC is relatively convenient because it is installed by Angle-Tap. It is suitable for DIY. Of course, Dry back, which needs to be priced separately, is the worst at this point.
The WPC floor is definitely good in terms of silence and foot feel, especially the WPC floor with cork or EVA pads;
WPC is also very good in environmental protection, including formaldehyde emission, heavy metals, especially Reach test, all 144 items passed.
WPC has good sound absorption effect and good energy saving, which makes indoor energy saving up to more than 30%.
WPC is simple to install and convenient to construct, does not require complicated construction techniques, saving installation time and costs
WPC flooring is a weak point in terms of recyclability after use, because WPC (WoodPlastic) cannot be recycled and reused. PVC flooring of other products can be reused as recycled materials.
3. Several issues that need attention in the communication between WPC and customers
(1) Because the LPC layer of WPC is generally only 1.5mm thick, try to choose a flat plate as much as possible. Do not do hand grip and classic slate (slate grain), the rate of pressing the defective products will be very high.
(2) The cost of 6.0MM wood-plastic layer is 1.8 dollars higher than that of 5.0MM wood-plastic layer.
WPC+2.0mm EVA Form: Price+USD1.00SQM
WPC+1.5mm Cork: Price+USD1.50SQM
Four, stone plastic floor SPC:
Stone plastic floor SPC (Stone plactic composite) is a new type of environmental protection floor developed based on high technology. It has the characteristics of zero formaldehyde, mildew, moisture, fire, insect and simple installation. SPC floor is extruder combined with T-shaped die to extrude PVC substrate, using three-roller or four-roller calender to separate the PVC wear-resistant layer, PVC color film and PVC substrate, and heat and emboss at one time. , The process is simple, the fit is done by heat, and no glue is needed. SPC floor materials use environmentally friendly formulas and do not contain harmful substances such as heavy metals, phthalates, and methanol. They comply with EN14372, EN649-2011, IEC62321, and GB4085-83 standards. Widely popular in developed countries in Europe and America and the Asia-Pacific market. With its excellent stability and durability, the stone-plastic floor not only solves the problem of moisture and deformation of the solid wood floor, but also solves the formaldehyde problem of other decoration materials. It has a wide selection of flower patterns and is suitable for indoor decoration, hotels, hospitals, shopping malls and other public places.
SPC floor shrinkage: ≤1‰ (after tempering treatment), ≤2.5‰ (before tempering treatment), (shrinkage test standard: 80℃, 6-hour standard);
SPC floor density: 1.9~2 tons/cubic meter;
SPC floor advantages: SPC floor physical indicators are stable and reliable, and chemical indicators comply with international and national standards;
Disadvantages of SPC floor: SPC floor has high density, heavy weight and high transportation cost;
Compared with LVT and WPC floor production, SPC floor production: SPC floor processing and manufacturing process is simple.
The advantages of SPC environmental protection floor:
SPC floor is a new type of environmentally friendly composite material product, its advantages are as follows
(1) Waterproof and moisture-proof. It fundamentally solves the problem that wood products are easy to rot and swell and deform after absorbing moisture in wet and watery environments, and can be used in environments where traditional wood products cannot be used;
(2) Insect-proof and termite-proof, effectively prevent insect harassment and extend the service life;
(3) Colorful, with many colors to choose from. Not only has natural wood feeling and wood texture, but also can customize the required color according to your own personality;
(4) Strong plasticity, which can realize personalized modeling very simply and fully reflect the individual style;
(5) High environmental protection, no pollution, no pollution, and recyclable. The product does not contain benzene and formaldehyde, it is an environmentally friendly product, and it can be recycled to greatly save the amount of wood used. It is suitable for the national policy of sustainable development and benefits the society;
(6) High fire resistance. It can effectively flame retardant, and its fire rating reaches B1 level. It will self-extinguish in case of fire and will not produce any toxic gas;
(7) Good processability, can be ordered, planed, sawed, drilled, and the surface can be painted;