Military-printing Sandwich Wall PPGI PPGL Iron Coil

PPGI/PPGL color-coated steel coils and military printed metal strips designed for sandwich walls, industrial roofs and military equipment shells use DX51D-DX53D galvanized/aluminized zinc substrates combined with camouflage printing, anti-infrared coating and other military technologies to achieve lightweight (0.3-1.5mm thickness), high weather resistance (salt spray ≥ 2000 hours) and concealment (military camouflage pattern) triple breakthroughs, adapted to EN 10346, ASTM A653 and MIL-STD-810 standard 415.

Four core advantages

Lightweight structural design

Adopting honeycomb topology optimization technology, the weight is reduced by 30% while maintaining compressive strength ≥300MPa, which is suitable for sandwich wall filling (rock wool/PU) structure requirements4;

Thickness range 0.3-1.5mm, plate flatness ≤2I-Units, supports high-speed roller forming (peak height 20-50mm)12.

Military-grade weather resistance and concealment

PPGL aluminum-zinc substrate (AZ150): bare board salt spray resistance ≥2500 hours, C5-level industrial area service life exceeds 20 years;

Military printing coating: camouflage/low visibility pattern (RAL CAMO color system), adhesion ≥T level, anti-ultraviolet aging 4000 hours (△E≤3)15.

Multifunctional surface treatment

Architectural field: high reflective coating (SRI ≥ 85), self-cleaning photocatalyst layer;

Military field: anti-infrared detection coating, electromagnetic shielding coating (efficiency ≥ 60dB);

Customized service: support digital printing, 3D texture transfer (wood grain/stone grain/custom camouflage).

Environmental protection and fast delivery

Using chromium-free passivation process, passed REACH and RoHS certification, VOC emissions reduced by 90%;

The three major domestic storage centers always have 10,000 tons of spot goods, supporting 72-hour expedited cutting (minimum strip width 50mm).

Application scenarios and technical solutions

Field Recommended products Performance highlights

Building sandwich wall 0.5mm PPGL+PU filling board Thermal conductivity ≤0.022W/(m·K), fireproof grade A2

Industrial roof 0.6mm PPGI+PVDF high reflective coating Wind resistance Class 4 (AS/NZS 2728)

Military equipment 1.2mm military printed strips (camouflage coating) Infrared reflectivity ≥80%, suitable for desert/jungle environment

Logistics warehousing DX53D substrate + HDP wear-resistant coating Passed 200,000 times rolling door opening and closing test, wear rate ≤0.1%

Technical parameters and standards comparison

Project PPGL for sandwich wall Military printed strips

Substrate thickness 0.4-1.2mm 0.8-1.5mm

Coating weight 150g/m² (55%Al-Zn) Zinc layer 275g/m² (Z275)

Coating type PVDF/HDP/Self-cleaning Camouflage printing + anti-infrared coating

Tensile strength 340-550MPa 420-600MPa

Salt spray resistance ≥2500 hours ≥3000 hours (military standard)