PIR Sandwich Wall Panel also called is Polyisocyanurate sandwich panel composed of 4 Parts. On the top and bottom, we choose the best quality steel, all of these steels through special processing. And above the steels, you can choose the coating as you wish; we have PVDF/SMP Coating, HDP Coating, and Polyester PE Coating for you to choose. In the middle, we have PU core material and PIR core material for you to choose. In addition that, we use special surface treatment, make the panel looks beautiful.
Polyisocyanurate is a polymer with a closed cell structure. The rigid foam is obtained by heat treatment. It is a chemical reaction product that occurs when the isocyanate and the polymer ether are mixed under the action of a catalyst, promotes molecular recombination and linkage, and the blowing agent produces closed cells. Due to the high temperature and the formation of specific catalysts, a periodic ring structure characterized by very strong chemical bonds is formed, which requires a large amount of energy to break. This explains the high heat resistance and compressive strength of the polyisocyanurate rigid foam. Compressive strength is an important physical property, therefore, the ability of polyisocyanuric rigid foam to maintain its shape when there is a force or load. The compressive strength of polyisocyanurate ranges from 110 KPa to 170 KPA.
If you want higher quality and longer lifespan of panel, you can choose different steel plate coating of steel plate
Good adhesion, rich color, ordinary durability, ordinary chemical resistance ability and low cost.
SMP (Silicon modified polyesters)
Organic silicon, Polyester
Well coating hardness, wear resistance and heat resistance, as well as well exterior durability and pulverization resistance; ordinary gloss retention, flexibility; medium cost.
HDP (High-durability Polyester)
HDP polyester paint
Good anti-ultraviolet and colour retention ability, good outdoor durability and pulverization resistance, excellent adhesion of paint film, rich color, high
PVDF (Poiy vinylidene fluoride)
Very good anti-ultraviolet and colour retention ability, very good outdoor durability and pulverization resistance, very good solvent resistance, good formability, good self-clean ability, color is limited, high cost.
The widely used coating type are PE (Polyester) Coating, SMP (Silicon modified polyesters) Coating, HDP (High-durability Polyester), PVDF Coating. PE Coating is the largest produced and used paint coating in the world, ordinary durability, well hardness and flexibility, the price is moderate. SMP Coating is the improvement of PE Coating through organic silicon, durability, luster, color retention was improved, but the flexibility of coating was reduced slightly. HDP Coating has all advantages of PE Coating, at the same time; the durability was improved, high cost-benefit. PVDF Coating has high durability, flexibility, but the hardness is relatively low, and the color is less, the price is expensive.
Polyurethane sandwich panel choose high quality two layer color coated steel sheet or other precision forming metal surface material; After rolling forming, it will inject flame retardant polyurethane bubble liquid in the middle space, through high pressure foaming and curing process, with strong adhesion with metal surface to compound and become beautiful, smooth, tough building panel.
|New Production Line|
This production line from OMS group we add specially for different kind PU panels, we introduce it since 1997. It has the following characters:
a. Make the panel have stable weight
b. PU foaming much more uniform and stable, will full use of black and white material
c. Good work on cut
d. Automatic pack
All of these directly influence the quality and lifespan of the panels. On the other hand, good material should be with professional production line, then will have good quality products, actually yours material requires is high, so we can be your good choice.