Weathering Heat Reflective Prepainted Galvalume Steel Coil DX51D

Product Specification

Weathering heat reflective color plate prepainted galvalume steel coil ,Red,Blue,Beige,ral colors etc .

Introduction of prepainted galvalume steel coil :

It is made by taking hot galvanized sheet and zinc-iron alloy hot galvanized sheet as the substrate through surface pretreatment, coating one or more layers of liquid coating by roll coating, baking and cooling. The used coatings including polyester, silicon modified polyester, high-durability polyester, polyvinylidene fluoride, epoxy and high corrosion-resisting coating are widely used for building, transport, home appliances, solar energy, furniture, etc. It is mainly used as the side door plate of refrigerators, and shell of DVDs, air conditionings, freezers, and washing machines.

Base material is GI or GL,Heat reflective coating can effectively reflect the infrared radiation energy, reduce the surface temperature, with its production of color coated plate to avoid the absorption of heat to accelerate the degradation of the paint film, earlier fade, loss of light, loss of flexibility film, mechanical properties Phenomenon.
The production of weather-resistant heat-reflective color coated plate to solve the common color coated plate to absorb high heat and reduce the service life of the problem is eco-friendly products and energy saving products pioneer, while making the roof is called "cold roof."
Product performance indicators in:
The initial solar reflectance (TSR)> 0.25 for all colors, and the sunlight reflectivity (TSR)> 0.15 for three years;
Most of the products (except for a few dark products) of the sun reflection coefficient SRI ≥ 29, part of the light-colored products SRI ≥ 78;
The product has excellent scratch resistance, the use of probe scratch tester test load 1500 grams, the film is not Li broken;
Resistance to heat and humidity, after non-condensing hot and humid test chamber placed 1000 hours, the product without bubbles, cracks, paint peeling, no color, gloss and hardness changes;
Resistance to boiling water, the product in 100 ℃ boiling water bath for 24 hours, no loss of light, discoloration, cracking, blistering, shedding and so on;
Acid resistance, the product soaked in 5% hydrochloric acid 24 hours, no significant change in appearance;
Alkali resistance, the product in 5% sodium hydroxide soak for 24 hours, no significant change in appearance;
UV lamp accelerated aging test, the product in the QUVA-340 UV lamp chamber test, fluorocarbon system 4000 hours, 2,000 hours of polyester modified polyester system, 1500 hours after the polyester system, the product powder level ≤ 1, no Rust, blistering, cracking and other defects.

Prepainted galvalume steel coil specifications:

Here comes some  roofing color plate based on prepainted galvalume steel coil specification common used:

Application of prepainted galvalume steel coil :

Production of roofing,wall panel,garage,barrier,shutter,frame of window,air-condition system covering,solar heating,electrical unit,refrigerated wagon and so on