This article talks about whether PC tubes can be sprayed with yellow paint. slot machine ph casino,slot ph casino,slot machine casino,slot casino,slot ph,BAY888.com The world's leading slot game platform, providing exciting gaming experience and generating rewards. Join now and start your journey to victory!

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Can the yellow paint on the lamp still work?

1. If the yellow paint is only applied to non-core areas such as the lampshade and exterior of the lamp body of ordinary lighting fixtures, and the ordinary paint that is non-toxic and stable after drying is used, and does not cover the cooling holes or circuit parts, then the basic lighting functions of the lamps are usually not affected. However, the light may appear yellowed due to the obstruction of the paint layer, which is normal.

2. If yellow paint means that the colloidal lamp beads are yellow and slightly yellowed: the colloidal surface is slightly yellow and has no cracks, the light transmittance is reduced by 5%-10%, and the brightness of the lamp beads is slightly reduced, but it can still emit light normally. It can continue to be used at this time, but heat dissipation needs to be strengthened, such as cleaning the cooling holes of the lamp and installing cooling fins to slow down the aging rate of the gel. Moderate yellowing: The overall gel yellows, the light transmittance drops by 15%-20%, the brightness of the lamp beads is significantly reduced, and the internal chips are susceptible to high temperatures.

3. The yellow ceiling lamp can continue to be used, but there are reduced light efficiency and safety hazards. It is recommended to replace it as soon as possible. Yellowing of lampshades is usually a natural phenomenon caused by plastic aging or long-term heating. This situation will reduce the light transmittance by 30%-50%, significantly dim the light, and may be accompanied by the risk of line aging. If the lamp body is not significantly deformed and cracked, the basic lighting function can still be maintained in the short term.

4. The shell of the lamp has turned yellow. Targeted cleaning methods can be used according to different types. The cleaning methods for home lampshades and car headlight shells are different. Household lampshade cleaning method If the outer shell of the lamp is a household lampshade, you can use a paint thinner to clean it. During the specific operation, first drop a drop of paint thinner on the yellowed area, then soak the area with a paper towel, and then wipe it.

5. If the outer shell of the lamp turns yellow, targeted cleaning methods can be used according to different types. The details are as follows: If the household lampshade turns yellow, paint thinner can be used to clean it. Put a drop of paint thinner on the yellowed part of the lampshade, soak it in a paper towel, and wipe it. If the yellow stain cannot be wiped off with one wipe, you can continue wiping with another drop.

What is the current wholesale price of pc granules

Specific quotations by region in Guangdong: PC transparent crushed materials are about 25 yuan/catty;PC buckets are about 5-25 yuan/catty;PC recycled white particles are about 5 yuan/catty;PC recycled transparent particles are about 65 yuan/catty;PC recycled black particles are about 6 yuan/catty. Hebei region: Blue transparent bucket with paint without trademark paper clean crushed material is about 4-5 yuan/kg; lampshade deplating white transparent crushed material is about 75-9 yuan/kg.

The wholesale price of PC/ABS plastic granules varies greatly depending on specifications and performance, and generally ranges from 45 yuan to 32 yuan/kg.

PP and PE plastic granules: The prices are similar, about 11000 yuan. ABS resin: The price is about 16000 yuan. PA plastic pellets: The price is usually above RMB 25000 to 26000. Plastic granules produced by BASF: The price is higher, reaching 38000 yuan. PC plastic pellets: The price is about 26000 yuan.

The price difference between PC and PVC raw materials is quite large. Compared with the current price difference, the price per ton of PC granules on the market is 8,000 - 10,000 yuan, and the price of PVC granules is only about 5000 yuan per ton. The price of PVC is about half to a quarter of that of PC. One; For similar types of products in the building materials market, such as flooring, PVC flooring costs only tens of yuan per square meter, while the price of PC flooring costs double or even higher. The overall price difference is generally about two to three times.

Price of new materials and modified materials New materials usually refer to unused original polycarbonate materials, while modified materials add flame retardant, toughening and other characteristics on this basis. Information from November 2025 shows that the price of the new modification of black PC environmentally friendly fire retardant V0 high gloss is about 15 yuan/kg. This kind of material has high gloss and stable flame retardant properties.

The average price in South China is slightly lower than that in East China by 5%-8%. The price of raw materials for ordinary polycarbonate (PC) plastic raw materials is about 25-40 yuan per kilogram. If modified materials with high transparency or special properties are needed, the price may rise to more than 50 yuan per kilogram. For example, the price of granular raw materials for Lotte Chemical's CF-1051 model is 17 yuan/kg. Such basic models are more common in bulk procurement.

How can the lamp tube not attract insects?

1. Light source selection: Reduce the attraction of insects from the root causeCan PC lamp tubes be sprayed with yellow paint?, replace cool-colored light sources and avoid using ultraviolet lights.

Clean environment: Reduce food sources, control humidity, and clean up stagnant water and garbage.

Physical protection: Directly block insect contact.

2. Make sure that the lamp tube does not attract insectsCan PC lamp tubes be sprayed with yellow paint?, can be achieved by replacing light sources, physical protection, natural insect repellent, environmental management and other techniques. The specific methods are as follows: Replacing light sources and choosing light sources that are less attractive to insects is the key.

3. The lamp tube does not attract insects can be solved through four major directions: physical isolation, light source selection, environmental cleaning, and odor removal. Among them, the type of light source and environmental treatment are the core keys.

Why does the PC lampshade turn yellow when it is activated?

If an alloy material of PMMA and PS is used to produce extruded lampshades, it will easily turn yellow during use. The PC material used by the supplier is not UV resistant. UV-resistant PC materials on the market are more expensive than non-UV-resistant PC materials. In order to save costs, some suppliers use non-UV-resistant PC materials to replace extruded PC lampshades produced by UV-resistant materials, which are prone to yellowing.

The pc lampshade can be used for a long time without yellowing, but the specific time depends on many factors, such as the use environment, frequency of use, cleaning and maintenance, etc. First of all, the environment is one of the important factors affecting the non-yellowing of pc lampshades. If the shade is installed in a place with direct sunlight or high temperatures and humidity, long-term exposure and oxidation reactions will cause the shade to turn yellow.

There may be many reasons why lampshades turn yellow, one of the common reasons is oxidation. After long-term exposure to air, the surface of the lampshade may react with oxygen, causing the color to turn yellow. In addition, pollutants such as dust and smoke may also deposit on the surface, further exacerbating yellowing.

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