Daxinban cement waterproof coating three people choose materials recipe

“Big core board, cement and waterproof coating are the three basic materials for the most advanced field in our home decoration, and have a great impact on the quality of future decoration. However, these more “raw” forms of materials are for the first time decoration consumers. In fact, if you understand it, you may not even see it, so many people pay the money and let the foreman pick it up. As everyone knows, there are many ways in which you have to work hard. ."

Big core board

Daxin board should not be too heavy

Blockboard, commonly known as the big core board in the row, is made of two pieces of veneer that are spliced ​​together. In the middle of the blockboard is a core made of natural wood sticking, with very thin veneer on both sides, which is one of the most important materials in the decoration. Can do furniture and package doors and door covers, heating covers, curtain boxes, etc., its waterproof and moisture-proof performance is better than particleboard and MDF.

When selecting large core boards, the focus is on the internal wood, which should not be too crushed. Blockboards with a gap of about 3 mm between woods are appropriate.

Many consumers choose Daxin board, a look at weight, and second look at price. In fact, the weight exceeds the normal size of the core board, indicating the use of miscellaneous wood. The large core board made of mixed wood cannot be used because it cannot be nailed.

Use E1 grade or higher products

Home decoration can only use E1 level Daxin board. The formaldehyde content of the E2 grade large core board may also be more than 3 times that of the E1 level large core board, so it cannot be used for home decoration.

Secondly, it is necessary to purify and close the large core boards that cannot be finished, especially the interior of the interior boards, the interior panels of the cabinets, and the heating hoods. At present, experts have developed formaldehyde sealants, formaldehyde-enclosed waxes, and aerosols that eliminate and seal formaldehyde. The best results have been achieved at the same time.

Generally, about 100 square meters of room do not use more than 20 large core boards. Excessive use may cause excessive formaldehyde in the indoor environment. In particular, do not use a large core board as a liner below the floor.

How to choose a quality Daxin board

A look at the manufacturer's trademark, production address, anti-counterfeit signs.

Secondly, see if the formaldehyde emission in the product test report is less than or equal to 1.5 mg per litre. General regular manufacturers have test reports, the lower the detection value of formaldehyde, the better.

Third, look at the appearance quality of Daxin board. To see if the surface of the Daxin board is smooth, whether it is warped or deformed, or whether there is bubbling or dent; the blockboard can be cut open at the scene or during construction to observe whether the inner wick is even and tidy, and the gap is as small as possible.

Four to see if there is odor. If the large core board emits a fragrance of wood, it means that the amount of formaldehyde released is less; if the smell is pungent, it means that the amount of formaldehyde released is more, do not buy it.

Raw material composition is the focus

Waterproof coating

The importance of waterproof coatings in home furnishings is undoubted, but how do you choose? Water-repellent application experts advise that when purchasing waterproof coatings, in addition to selecting relatively well-known brands, they should also pay attention to raw material ingredients. For example, coatings with better water-repellent properties should normally contain “silicone-modified acrylics,” and others use “core shells”. "Technology, more cutting-edge is containing "organic fluorine", these products should be excellent.

It is understood that currently available waterproof coatings on the market can be roughly divided into three types: modified asphalt waterproof coatings, which are used in conjunction with glass fiber cloth, the project is relatively complex; polyurethane waterproof coatings, these coatings are generally used containing toluene, two Toluene and other components of the organic solvent dilution, containing toxicity; recently the city of silicone rubber waterproof coating, the coating is mainly made of polymer synthesis technology, has a good waterproof, moisture-proof function, and the construction is relatively simple.

Four strokes to judge good cement

How to judge the quality of cement?

At first glance, see if the cement's paper bag packaging is intact and the logo is complete. The labels on the paper bags are: factory name, production license number, cement name, registered trademark, variety (including variety code), label, packaging year, month, date and number.

In the second batch, the cement powder was rubbed with a finger and felt a little fine, sand, and powder, indicating that the cement fineness was normal.

Third, look at the color, observe whether the color is dark gray or dark green, the color yellow, white (yellow shows the raw material is clinker, white, indicating excessive slag content) cement strength is relatively low.

Four look at the time to see the production date of cement. Cement performance beyond the valid period of 30 days has declined. After three months of storage, the strength of cement is reduced by 10%-20%, decreased by 15%-30% after six months, and decreased by 25%-40% after one year. High-quality cement can be solidified in more than 6 hours. Cement that does not solidify for more than 12 hours is of poor quality.

Tips

It is best to add the words “must conform to national standards” to the purchase contract or invoice, and at the same time it is best to leave a sample in the construction. Once the project is completed, it can be used as a judgment because of the indoor environment pollution caused by Daxinban quality problems. The basis of responsibility.

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