Decoration Construction Glossary (7)

★★ A group (paint ): “Group” is used to refer to the quantity of wood lacquer. Wall lacquer (latex paint) generally says “bucket” instead of “group”. Because of the paint on the wood, in addition to the paint itself, it also requires curing agents and thinners. A set of face/primer is a bucket/primer with the appropriate amount of hardener and thinner.

★★Polyester paint (PU): It is the main paint used for mixing water furniture. A thick paint made of polyester resin as the main filming material. The paint film of the polyester paint is full and the layer is hard. Polyester paint also has a variety of varnish, called polyester varnish. Polyester paints need to be cured during the construction process. The amount of these curing agents accounts for one third of the total paint content. These hardeners are also called hardeners and their main component is TDI (toluene diisocyanate). These TDIs that are in the free state will turn yellow, which will not only make the furniture painted yellow, but also make the neighboring walls yellow. This is a major drawback of polyester paint. At present, yellow-resistant polyester paint has appeared on the market, but it can only be used for “yellowing resistance”, and it cannot completely prevent yellowing. In addition, free TDI beyond the standard can also cause harm to humans. The harm of free TDI to human body is mainly sensitization and stimulatory effects. The international limit for free TDI is controlled below 0.5%.

★ ★ Polyurethane paint: Polyurethane paint. Its film is tough, full gloss, strong adhesion, water resistance, abrasion resistance and corrosion resistance. It is widely used in advanced wood furniture and can also be used on metal surfaces. The disadvantages are mainly the problems of bubbling in contact with water and paint powder. As with polyester paint, it also has the problem of yellowing.

★ ★ Nitro Varnish (NC): also known as varnish, is the main paint used to make clean water furniture. Base varnish is a kind of transparent varnish made of nitrocellulose, alkyd resin, plasticizer and organic solvent. It is a volatile paint with fast drying and soft gloss. Nitro varnish is divided into light, semi-matt and matte, which can be selected according to the need. Nitro-lacquer also has its disadvantages: high wet weather is easy to whiten, low fullness, and low hardness. The main auxiliaries for lacquer: a. It is a colorless, transparent liquid with a banana odor that is a mixture of organic solvents such as esters, alcohols, benzene, and ketones. Mainly from the nitrocellulose lacquer and curing. b. White water, also known as anti-white water, is called ethylene glycol monobutyl ether. In the wet weather construction, the paint film will be whitish. The addition of nitromagnetized white water with a diluent amount of 10~15% can eliminate it.

★★ Hand sweeping paint: It is a type of nitro lacquer, a kind of non-transparent paint made of nitrocellulose, various synthetic resins, pigments and organic solvents. This paint is specially formulated for artificial construction and has a quick drying feature.

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PCR Strips

Thin-Walled Polypropylene PCR strip tubes
As one of the largest manufacturers of PCR strip tubes in China for over a decade, we have been supplying PCR 8 strip tubes and PCR single tube to our international customers.
As these PCR tube strips have thin and uniform walls, they can fit in different types of thermal cyclers. As a next step, we are also planning to develop PCR tube strips with attached caps, also called PCR strip tubes with individually attached caps.
More info about PCR strip tubes:
What Are PCR strip tubes?
PCR strips tubes allow scientists working with cyclers and enzymes to gain enhanced PCR yield through a faster transmission of heat from block to the reaction. It offers better control over the reaction while speeding up the process with high heating and cooling rates.

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