Swisspearl Patina Original NXT

Swisspearl Patina Original NXT is a through-colored fiber cement board with fine sanding lines on its matte face. The restrained linear grain and small variations in the surface are its visible character.

The board comes in timeless colors and evolves over time, with unique and subtle variations on the surface. It is the first of three Patina NXT boards, followed by Rough NXT and Structure NXT, and is sold for external and internal wall and ceiling coverings, including rainscreen façade work. Version 12/25 is the edition printed, with AC 90 / ASTM 1185 / EN 12467 at the head.

The surface treatment is fine sanding. The grain runs horizontally or vertically, depending on how the board is laid.

Shade deviation within a product and between products is part of production. The CIELAB model monitors only lightness ΔL, with color variation at ΔE = ± 2.5. UVA color resistance over 3000 hours is ΔE 2.7. A note on the color range says restrictions may apply.

• Material: through-colored fiber cement.
• Surface structure: structured.
• Optics: uncoated.
• Eleven color codes: P 020, P 045, P 070, P 222, P 313, P 323, P 333, P 343, P 545, P 565 and P 626.
• Largo sizes: 98.43 x 49.21 in and 120.08 x 49.21 in, each 8 mm thick.

The US selection lists the board only in the rectangular Largo format. A fine patina forms on the surface over the seasons.

The product page for Patina Original NXT links to invisible façade fasteners and visible façade fasteners as its two fastener categories.

The Largo format of Patina Original NXT carries Cradle to Cradle Certified Full Scope, Bronze level, version 4.1. The assessment of Patina Original NXT covers Material Health, Product Circularity, Clean Air and Climate Protection, Water and Soil Stewardship, and Social Fairness.

• Nominal thickness: 6 mm, 8 mm and 12 mm in the three-board range.
• Nominal width: 46.38 in and 49.21 in.
• Nominal length: 98.82 in and 120.08 in.
• Weight with 7.5 percent moisture: 2.13 lb/ft² (6 mm), 3.05 lb/ft² (8 mm), 4.47 lb/ft² (12 mm).

Boards can be cut to custom dimensions for specific projects. Thickness tolerance below 0.79 in is +/- 0.024 in at 6 mm and +/- 0.032 in at 8 mm. Width and length between 39.4 in and 63.0 in are held to ± 0.3 percent of nominal, and length over 63.0 in to +/- 2.0 in.

• Dry density, minimum: 87.4 lb/ft³ (ASTM 1186).
• Dry density, average: 96.8, 98.0 and 101.1 lb/ft³.
• Moisture content: 5 to 10 percent.
• Average modulus of elasticity at ambient: 12.8, 13.7 and 13.7 GPa (EN 12467).
• Wet average flexural strength: 3626, 3771 and 3771 psi, with a minimum class of 2610 psi.
• ASTM 1186 category and class: Type A, class IV.

• Permitted air temperature in use: -40 °C minimum, +80 °C maximum.
• Coefficient of thermal expansion: 0.01 mm/m °C.
• Frost resistance: 100 cycles at RL > 0,75.
• Water absorption: under 25 percent.
• Moisture movement: 0.06 in.
• Water vapor Z-value: 2.4 GPa m² s/kg at 6 mm, 2.5 at 8 mm, 1.8 at 12 mm; permeance 7.2 USPerm at 6 mm and 7.0 USPerm at 8 mm.

Euroclass reaction to fire is A2-s1, d0. ASTM E84 is Class A (does not ignite), NFPA 285 is passed and the 750 °C test under ASTM E136 is approved.

Impact testing under EAD 090062-01-0404 uses hard bodies of 1, 3 and 10 joules and soft bodies of 10, 60, 300 and 400 joules, and the 8 mm board is in impact end-use Category II-a.

GWP-total (A1-C4) for Original NXT is 11.6, 15.5 and 19.4 kgCO2-eq at 6, 8 and 12 mm. Fossil GWP is 11.4, 15.2 and 19.0, and biogenic GWP is 0.22, 0.3 and 0.37.

Certifications are ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018, M1 classification for VOC emission (EN 16516:2017 + A1:2020) and REACH (EC) No. 1907/2006. A Declaration of Performance with CE marking is issued under Regulation No. 305/2011.