OTC Markets XERI
Molecular lattice structure
DUREVER

An Industry Game-Changer

The flagship of the DUREVER™ line of building materials, NexBoard® is our patented eco-friendly composite wall panel made using recycled plastic and fiber waste, and our proprietary Durazite™ fire retardant technology. In virtually every performance category, NexBoard surpasses traditional wall panels and stands out as an industry game-changer.

Its exceptional durability, strength, and resistance to fire, water and mold has been certified through extensive third-party testing. NexBoard has achieved an ASTM E84 Class A Fire Rating and passed the NFPA 286 Corner Room Test with zero smoke and combustion.

On July 14, 2026, the United States Patent and Trademark Office issued Xeriant a patent for a "Multilayered Fire-Resistant Polymer Composite and Method for Making Same."

A stack of NexBoard composite wall panels
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The Universal Construction Panel™

The versatility of NexBoard is unmatched in the industry, with applications across the entire building envelope, including walls, ceilings, sheathing, roofing, subflooring, flooring, framing and siding.

With its certified performance features, multi-use profile, and environmental advantages, NexBoard is a superior and universal alternative to drywall, plywood, OSB, MgO board, cement board, MDF and other types of panels used in construction.

NexBoard

Performance Analysis Summary

Durazite TechnologyASTM E84 Class A CertifiedNFPA 286UL 723
Fire Performance
ASTM E84, UL 723
Highest possible Class A Fire Rating
NFPA 286 full room corner burn test
Passed
Thermal Performance
ASTM C518
1.2 R-Value - 2X drywall and MgO, competitive with plywood, OSB, MDF
Impact Resistance
ASTM C1629 6.3 / ASTM E695 9.4
345 ft-lbs soft body impact, 8-20X drywall
ASTM C1629 6.4
225 ft-lbs. hard body impact, drywall 14-40 ft-lbs, MgO 40-100 ft-lbs
ASTM D256 (Izod)
86.74 Joules / m force (1.62 ft-lbf/in²), exceeds drywall 10-27, plywood 40-80
Tensile Strength
ASTM D3039
1,839 psi, 6-12X drywall, higher than MgO, 1.5-2.3X plywood
Compressive Strength
ASTM D6641
5,257 psi vs drywall 200-500 psi, plywood 2,000-3,500 psi, OSB 1,500-2,000 psi
Fastener Pull-Through Resistance
ASTM D7332
425-635 lbf, 5-7X drywall, matching or exceeding plywood, OSB, MDF
Surface Layer Adhesion
ASTM D3359 Method A
Perfect 5A rating
VOC Content
ASTM D2369
37.8 g/L, below EPA threshold of 50 g/L
Water Absorption (24 Hour, 7 Day Immersion)
ASTM D570
3.47% - 24 hours, 6.06% - 7 days, drywall 25-35%
Moisture Absorption (Elevated Temp./Humidity)
ASTM D5229
.04% - 24 hours, .87% - 168 hours, .99% - 28 days, plywood, OSB, MDF 18-35%
Mold Resistance
ASTM D3273
Perfect 10 score – no mold growth at 28 days, drywall 6-8, plywood/OSB 3-5, MgO 8-9
Chemical & Salt Spray Resistance
ASTM D543 / ASTM B117
14 chemicals – no effect @ 168 hours, salt spray – no corrosion @ 96 hours
NFPA InternationalASTM InternationalUL Underwriters Laboratories

Safety. Durability. Sustainability.

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Announcement
Xeriant Achieves Nearly 25% NexBoard™ Weight Reduction
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