putty powder environmental protection standard
putty powder environmental protection standard, indoor wall decoration is a relatively large project, and putty must be scraped when the house is decorated, and the role of putty powder in wall decoration is very obvious. The following details introduce the environmental protection standard of putty powder. Environmental standards for putty powder 1
National standards for putty powder: JG/T 157-29 Putty for Building Exterior Walls, JG/T 298-21 Putty for Building Interior Walls, GB 2448-29 limit of harmful substances of exterior wall coatings, GB 18582-28 Limits of harmful substances in interior wall coatings for interior decoration materials.
according to national standards, the finished putty is divided into general putty (Y type) and water-resistant putty (N type). Note: the product inspection report indicates which model standard index is used for inspection.
1. General putty (Y type): used in places where water resistance is not required. Consists of Shuangfei powder (namely calcium carbonate), starch glue and cellulose. Among them, starch glue is a kind of water-soluble glue, which melts in water and is not water-resistant. It is commonly used by construction teams in Changzhou area.
2. water-resistant putty (type n): used in places where water resistance and high bonding strength are required. It consists of Shuangfei powder (namely calcium carbonate), gray calcium powder, cement, organic rubber powder, water retaining agent, etc. After water resistance and alkali resistance tests, no blistering, cracking and shedding were found, and there was no abnormality in immersion in water for 48 hours and alkali resistance for 24 hours.
Determination principle
All the items tested by the inspection institute meet the standard requirements, and it is determined that the products sampled are not found unqualified; Any one or more of the inspection items is unqualified, and it is determined that the products are unqualified. When the product is unqualified in Class A items, it is seriously unqualified. If the expressed quality requirements of the inspected products are higher than the standard requirements of the inspection items in these Detailed Rules, it shall be judged according to the expressed quality requirements of the inspected products.
if the quality requirements of the inspected products are lower than the requirements of the mandatory standards on which the inspection items are based in these detailed rules, it shall be judged according to the requirements of the mandatory standards. If the expressed quality requirements of the inspected products are lower than or contain the recommended standards for inspection items in these Detailed Rules, it shall be judged by the expressed quality requirements of the inspected products, but it shall be explained in the remarks of the inspection report.
if the express quality requirements of the inspected products lack the requirements of the mandatory standards on which the inspection items are based in these detailed rules, they shall be judged according to the requirements of the mandatory standards. If the express quality requirements of the inspected products lack the requirements of the recommended standards on which the inspection items are based in these Detailed Rules, the items shall not participate in the judgment, but shall be explained in the remarks of the inspection report. Environmental standard of putty powder 2
How to use putty powder?
external wall putty
1. dosage: 1-1.5 kg/m2.
2. thickness: generally about 1mm.
3. mixing method: add water and stir. After the mixing, it can be left for 1 minutes and then can be used after stirring.
4. Convenient surface treatment: a smooth wall can be selected.
5, scraping leveling.
6. storage and transportation.
interior wall lining
1. Material: 1-1.5kg/m2.
2. stirring: add water to stir, and leave it for 1 minutes before stirring.
3. Surface treatment: Before painting, it is necessary to ensure that the wall is flat and clean, and the water content of the wall should be less than 5%.
4. Scraping leveling: the leveling of putty should be done in a semi-dry state (it will not deform when pressed lightly by hand), and it can be leveled with emery cloth after curing.
5. storage and transportation: stored in a cool and dry place with a shelf life of 6 months.
is putty powder poisonous?
Regular putty powder is odorless and nontoxic, and users can use it with confidence. But here, we sincerely remind consumers that in the purchase of putty powder, we must choose brands with guaranteed quality and high reputation to avoid buying fake and inferior products, which will affect their own health.
putty powder brand:
1. Meichao putty powder: Meichao Group Co., Ltd., established in 1996, is a well-known trademark in China, a benchmark brand in Beijing's home furnishing industry, and one of the top ten brands of putty powder. It is in a leading position in the domestic market in the subcategory of wall leveling materials, and is a famous enterprise specializing in the production and sales of various home improvement building materials.
2. lines: lines Building Materials Company mainly deals in building materials such as putty powder and latex paint. At present, it has hundreds of dealers of high-quality putty powder in China, providing different services for different customers.
3. Ma Bei: Ma Bei Building Materials Co., Ltd., founded in Italy in 1937, is one of the top ten brands of adhesives, one of the largest manufacturers of adhesives and chemical products for construction in the world, and is an auxiliary building material.
4. Dulux putty: Dulux putty powder has the advantages of covering fine cracks, super scrubbing resistance, mildew resistance, fresh and lasting beauty, and innovative microporous purification technology is adopted to effectively decompose formaldehyde in the air, maintaining the high-quality surface of paint film and reducing the formaldehyde content in the air. Deeply welcomed by consumers.
5. Desert Oasis: Its putty powder has a unique clean taste formula, which has lower VOC, more outstanding environmental protection performance, cleaner taste, healthier non-toxicity, innovative component formula, cleaner taste and lower VOC and benzene content.
In addition, Nippon Grease Powder, China Resources, Maydos, Black & Decker and Saint-Gobain are also very well-known brands, which are very popular with consumers and have certain quality assurance.
Price of putty powder:
Because there are many types and models of putty powder in the market, its price is also uncertain. Generally, the price of putty powder in the market is around 1,5 ~ 2,2 yuan a ton. Consumers can go to the local building materials shopping mall to make an inquiry.